IEC PAS 62686-2:2016

IEC PAS 62686-2 ®
Edition 1.0 2016-07
PUBLICLY AVAILABLE
SPECIFICATION
PRE-STANDARD
Process management for avionics – Electronic components for aerospace,
defence and high performance (ADHP) applications –
Part 2: General requirements for passive components

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IEC PAS 62686-2 ®
Edition 1.0 2016-07
PUBLICLY AVAILABLE
SPECIFICATION
PRE-STANDARD
Process management for avionics – Electronic components for aerospace,

defence and high performance (ADHP) applications –

Part 2: General requirements for passive components

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 03.100.50; 31.020; 49.060 ISBN 978-2-8322-3532-4

– 2 – IEC PAS 62686-2:2016 © IEC 2016

CONTENTS
FOREWORD. 3

1 Scope . 5

2 Normative references . 5

3 Terms, definitions and abbreviated terms . 5

4 Abbreviations and acronyms . 8

5 Technical requirements . 9

Annex A (normative) STACK Specification S/0003 IEC quality assessment systems

for high reliability passive components . 11
Bibliography . 31

INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________
PROCESS MANAGEMENT FOR AVIONICS –

ELECTRONIC COMPONENTS FOR AEROSPACE, DEFENCE

AND HIGH PERFORMANCE (ADHP) APPLICATIONS –

Part 2: General requirements for passive components

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.

9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
A PAS is a technical specification not fulfilling the requirements for a standard, but made
available to the public.
STACK specification S/0003 has served as a basis for the development of Part 2 of this
publicly available specification.

– 4 – IEC PAS 62686-2:2016 © IEC 2016

IEC PAS 62686-2 has been processed by IEC technical committee 107: Process management
for avionics.
The text of this PAS is based on the This PAS was approved for

following document: publication by the P-members of the

committee concerned as indicated in
the following document
Draft PAS Report on voting
107/281/PAS 107/284A/RVD
Following publication of this PAS, which is a pre-standard publication, the technical committee

or subcommittee concerned may transform it into an International Standard.
This PAS shall remain valid for an initial maximum period of 3 years starting from the
publication date. The validity may be extended for a single 3-year period, following which it
shall be revised to become another type of normative document, or shall be withdrawn.
A bilingual version of this publication may be issued at a later date.

PROCESS MANAGEMENT FOR AVIONICS –

ELECTRONIC COMPONENTS FOR AEROSPACE, DEFENCE

AND HIGH PERFORMANCE (ADHP) APPLICATIONS –

Part 2: General requirements for passive components

1 Scope
This PAS defines the minimum requirements for general purpose ‘off the shelf’ COTS passive
components for ADHP (Aerospace, Defence and High Performance) applications.
This specification is intended to be used wherever possible for components that typically can
be applied to operate in high reliability applications within the manufacturers publicly available
datasheet limits. This document can be used in conjunction with IEC TS 62239-1 for avionics
applications.
This specification is identical to STACK Specification S/0003 issue 02 which is included in
Annex A.
NOTE Adoption of the STACK Specification S/0003 issue 02 will enable all existing STACK Certified
manufacturers to be audited by IECQ under the STACK-IECQ joint venture.
2 Normative references
The following referenced documents are indispensable for the application of this document.
For dated references, only the edition cited applies. For undated references, the latest edition
of the referenced document (including any amendments) applies.
See the referenced documents within Annex A.
3 Terms, definitions and abbreviated terms
For the purposes of this document, the following terms, definitions and abbreviations apply.
When the following terms are used in italics they have the meaning defined in this clause.
3.1
available
accessible, obtainable
Note 1 to entry: For example technical data, documents, etc. are information that can be requested and made
available for consultation or analysis.
3.2
calendar days
continuous days, including weekends and holidays
[SOURCE: IEC 62686-1:2015, 3.1.1]
3.3
component
device
electrical or electronic device that is not subject to disassembly without destruction or
impairment of design use
– 6 – IEC PAS 62686-2:2016 © IEC 2016

Note 1 to entry: Resistors (for example wire wound resistor) and capacitors (for example ceramic capacitor) are

examples of passive components.

[SOURCE: IEC 62239-1:2015, 3.1.19, modified for the purpose of this document]

3.4
customer
user
original equipment manufacturer (OEM) which procures integrated circuits and/or

semiconductor devices compliant to this technical specification and uses them to design,

produce, and maintain systems
[SOURCE: IEC 62686-1:2015, 3.1.3]
3.5
data sheet
document prepared by the manufacturer that describes the electrical, mechanical, and
environmental characteristics of the component
[SOURCE: IEC 62686-1:2015, 3.1.4]
3.6
deviation
user agreement to allow the delivery of a shipping lot which does not fully meet the
requirements of a specification
Note 1 to entry: Considered equivalent to concession for the purpose of this document.
[SOURCE: IEC 62686-1:2015, 3.1.5]
3.7
device specification
document written by a user and agreed by the supplier or OCM
[SOURCE: IEC 62686-1:2015, 3.1.6]
3.8
form
shape, arrangement of parts, visible aspect, mode in which a part exists or manifests itself,
and the material an item is constructed from
[SOURCE: IEC 62686-1:2015, 3.1.7]

3.9
fit
fitability of an item to physically interface or interconnect with or become an integral part of
another item or assembly
Note 1 to entry: Size and scale are examples of considered characteristics.
[SOURCE: IEC 62686-1:2015, 3.1.8]
3.10
function
work to a specification that an item is designed to without degrading reliability
[SOURCE: IEC 62686-1:2015, 3.1.9]

3.11
generic family
group or family of devices with the same basic construction but with differing values, i.e.

capacitance, tolerance, voltage rating etc.

3.12
incoming lot
one or more shipments of a device, grouped together for the purpose of incoming inspection

[SOURCE: IEC 62686-1:2015, 3.1.10]

3.13
inner container
box or bag containing devices, either in magazines or bulk packaged
[SOURCE: IEC 62686-1:2015, 3.1.11]
3.14
limitation
restriction with regard to a requirement or a condition or a constraint
Note 1 to entry: Limitations may be identified during a certification audit when suppliers’ products or processes do
not meet the requirements of a specification. In that event, the supplier is noted as having limitations which are
recorded in the audit report and on the certificate. These limitations are applicable to that individual supplier only.
3.15
magazine
shipping container that feeds into automatic placement machines
Note 1 to entry: Sticks, tubes, matrix trays, tape/reel, etc. are examples of magazine.
[SOURCE: IEC 62686-1:2015, 3.1.12]
3.16
manufacturing lot
definite quantity of devices tracked at each manufacturing operation. It is associated with a
travel log and constitutes a group, homogeneously processed through all manufacturing
operations under uniform manufacturing conditions
3.17
may
indicates a course of action which is permissible within the limits of this document

3.18
original component manufacturer
OCM
company specifying and manufacturing the electronic component
[SOURCE: IEC 62686-1:2015, 3.1.15]
3.19
outer container
outer shipping container, containing one or more inner boxes
3.20
room temperature
temperature identified at 25 °C ± 5 °C in a room

– 8 – IEC PAS 62686-2:2016 © IEC 2016

[SOURCE: IEC 62686-1:2015, 3.1.16]

3.21
shall
indicates a requirement
3.22
should
offers a guide or recommendation that might be used or helpful to assure compliance to this

document
3.23
shipping lot
single lot of one or more outer boxes received by a user
[SOURCE: IEC 62686-1:2015, 3.1.18]
3.24
specification
specification together with all other documents referred to as forming part thereof
3.25
supplier
company which provides to another an electronic component which is identified by the logo or
name marked on the device
Note 1 to entry: A supplier can be the OCM, a franchised distributor or agent, a non-franchised distributor, broker,
reseller, OEM, CEM and EMS etc.
[SOURCE: IEC 62686-1:2015, 3.1.19]
3.26
termination
element of a component that connects it electrically and mechanically to the next level of
assembly
[SOURCE: IEC 62686-1:2015, 3.1.20]
3.27
T min
op
minimum operating temperature
3.28
T max
op
maximum operating temperature
3.29
waiver
written notice that a requirement of a document or specification no longer applies or is relaxed
Note 1 to entry: Generally if granted, the waiver is documented on the registration certificate and is applicable to
an individual supplier only.
4 Abbreviations and acronyms
AOQ average outgoing quality
AQEC aerospace qualified electronic component

BF board flex
BL beam load
COTS commercial off the shelf
DPM defects per million (may also be referred as PPM (parts per million))

EHS environmental, health and safety

EMAS Eco-Management and Audit Scheme

ET electrical test
ESD electrostatic discharge
FL flammability
HE hermeticity
HTOL high temperature operating life
HTS high temperature exposure (storage)
LTPD lot tolerance percent defective
MSL moisture sensitivity level
MR moisture resistance
MS mechanical shock
OCM original component manufacturer
OEM original equipment manufacturer
PCB printed circuit board
PCN Product change notice
PD package dimensions
RoHS Restriction of the use of certain Hazardous Substances (European Union directive)
RS resistance to solvents
RSH resistance to solder heat
SD solderability
SM surface mount
SMD surface mount device
SV surge voltage
TC temperature cycling
THB biased humidity
TH through hole
THS thermal shock
TSL terminal strength (leaded)
TSS terminal strength (SMD)
TW tin whisker
V vibration
VI visual (external inspection)
5 Technical requirements
The supplier shall provide the user’s requirements for quality, reliability and general
requirements for ‘off the shelf’ COTS passive components not otherwise governed by and
supplied to defence specifications, as stated in STACK S/0003 issue 02. STACK S/0003 issue
02 specification is included in Annex A.

– 10 – IEC PAS 62686-2:2016 © IEC 2016

NOTE 1 The required information is available to STACK members by a method agreed during registration and to

IECQ certified companies from their IECQ certification body (IECQ CB).

NOTE 2 Limitations may be identified during a certification audit were some of suppliers products do not meet the

requirements of this specification due to marketing reasons. In that event, the supplier is noted as having

limitations which are recorded in the audit report and on the certificate. These limitations are applicable to that
individual supplier only.
Annex A
(normative)
STACK Specification S/0003
IEC quality assessment systems

for high reliability passive components

– 12 – IEC PAS 62686-2:2016 © IEC 2016

GENERAL REQUIREMENTS
STACK 0003
FOR PASSIVE COMPONENTS
Issue 02
IEC QUALITY ASSESSMENT SYSTEMS FOR HIGH RELIABILITY

PASSIVE COMPONENTS
(IECQ System)
GENERAL REQUIREMENTS FOR PASSIVE COMPONENTS

JOINT COMPANY STANDARD
This Specification is issued by:
STACK INTERNATIONAL
www.stackinternational.com
Tel: +44 (0)20 8449 7016
Copyright  7th October 2014 STACK International.
This document may be reproduced with this copyright notice

GENERAL REQUIREMENTS
STACK 0003
FOR PASSIVE COMPONENTS
Issue 02
CONTENTS
1. INTRODUCTION 10. AUD IT C APAB ILITY

1.1 Purpose and scope
10.1 Internal Quality Audits
1.2 Use of equivalent tests 10.2 Subcontract Manufacturing

1.3 Liaison
1.4 Translation 11. QUALITY ASSURANCE

1.5 Compliance with internal standards
11.1 Quality System
11.2 Failure analysis support
2. REFERENCED STANDARD 11.3 Outgoing quality

3. TERMS AND DEFINITIONS 12. QUALIFICATION
12.1 Methodology
4. ADMINISTRATION 12.2 Test Samples
4.1 Registration to this specification 12.3 Qualification categories
4.2 Proprietary data 12.4 Maintenance of qualification
4.3 Deviation 12.5 In process test results
4.4 Updates to this Specification
12.6 Product monitor results
12.7 References
12.8 Qualification report
5. PROCEDURES
5.1 Product Discontinuation 12.9 Archiving
12.10 Qualification of changes
5.2 Specification Control
5.3 Traceability 12.11 Similarity Assessment
Table 1 Technology/Family Qualification and

6. SHIPMENT CONTROLS Device Qualification
6.1 Unit Pack Container Packing Table 2 Qualification tests for device types
6.2 Intermediate Packing
6.3 Date Codes 13. PRODUCT MONITOR
6.4 MSL 13.1 Monitor program
13.2 Problem notifications
6.5 Lead-Free Marking
6.6 Labels General 13.3 Data reporting

6.7 ESD
14. ENVIRONMENTAL, HEALTH AND SAFETY
14.1 EHS Compliance
7. PCN
7.1 Notification 14.2 Device Handling
14.3 Device Materials
7.2 Notification details
8. ELECTRICAL 15. TEST CODE INFORMATION
8.1 Operating Conditions
8.2 Electrical Test 16. DOCUMENT REVISION
HISTORY
9. MECHANICAL
9.1 Device Marking
9.2 Moisture Sensitivity
9.3 Termination finishes
9.4 Tin Whiskering
– 14 – IEC PAS 62686-2:2016 © IEC 2016

GENERAL REQUIREMENTS
STACK 0003
FOR PASSIVE COMPONENTS
Issue 02
1. INTRODUCTION
1.1 Purpose and Scope: This specification defines user quality, reliability and general requirements

for passive components, not otherwise governed by and supplied to Military Specifications. Thus

it forms the basis of the Stack Registration and Certification programs.

1.2 Use of Equivalent Tests: To comply with the requirements of this specification, the supplier may

use the test methods and methodologies specified herein or any other equivalent test method.
Proposed equivalent test methods, rationale and supporting data shall be reviewed during the
Registration and or Certification processes by the STACK Members or the audit team and shall
achieve the same end objectives as specified herein. The user reserves the right to reject product
failing to meet the test methods (or equivalent test methods) specified herein. Use of such
equivalent tests shall not be considered to be deviations or waivers to the requirements of this
specification.
1.3 Liaison: Enquiries relating to this specification, which concern product deliveries or orders, shall
be addressed to the user. Enquiries relating to registration should be addressed to:

STACK International
94 Lyonsdown Road
Barnet
Herts
EN5 1JL
U.K.
Tel: +44 (0)20 8449 7016
1.4 Translation: If translated into other languages the English language version of this specification
shall prevail.
1.5 Compliance with Internal Standards: This document does not exempt the supplier of their
responsibility to meet their own company internal requirements.

IEC PAS 62686-2 © IEC:2016 – 15 –

STACK 0003
GENERAL REQUIREMENTS
FOR PASSIVE COMPONENTS Issue 02

2. REFERENCED STANDARDS
2.1 References to other documents form a part of this specification to the extent specified herein.

Where no particular document revision is given the latest revision is intended. In case of conflict

between this specification and the content of any referenced standard (excluding Section 19) the

content of this specification defines the STACK requirement.

AEC-Q200 Automotive Electronics Council Stress Test Qualification for Passive

Components
AEC-Q200-002 - Machine Model (MM) Electrostatic Discharge Test
AEC-Q200-003 - Beam Load (Break Strength) Test
AEC-Q200-005 - Board Flex / Terminal Bond Strength Test
AEC-Q200-006 - Terminal Strength (SMD) / Shear Stress Test
AEC-Q200-007 - Voltage Surge Test
AS9100 Quality Management Systems: Aviation, Space & Defense Organizations
EIA471 Symbol and Labels for Electrostatic Sensitive Devices (ESD)
EIA541 Packaging materials for ESD sensitive items
EIA556 Outer shipping container bar code label standard
EMAS Eco-Management and Audit Scheme
ISO14001 Environmental Management Systems-Requirements with guidance for use
ISO9000 Quality management systems – Fundamentals and vocabulary
JESD201 Environmental acceptance requirements for tin whisker susceptibility of tin and
tin alloy surface finishes
JESD22-A101 Steady state temperature humidity bias life test
JESD22-A104 Temperature cycling
JESD22-A121 Measuring whisker growth on tin and tin alloy surface finishes
JESD22-B100 Physical Dimension
JESD97 Marking, Symbols, and Labels for Identification of Lead (Pb) Free Assemblies,
Components, and Devices
J-STD-002 Solderability Tests for Component Leads, Terminations, Lugs, Terminals and
Wires
J-STD-020 Moisture/reflow sensitivity classification for non-hermetic solid state surface
mount devices
J-STD-033 Handling, Packing, Shipping and Use of Moisture/Reflow Sensitive Surface
Mount Devices
J-STD-609A.01 Marking and Labeling of Components, PCBs and PCBAs to Identify Lead (Pb),
Lead-Free (Pb-Free) and Other Attributes
MIL202 Department of Defense Test Method Standard Electronic and Electrical
Component Parts
MIL202-M103 - Humidity (Steady State)

MIL202-M106 - Moisture Resistance
MIL202-M107 - Temperature Cycling

– 16 – IEC PAS 62686-2:2016 © IEC 2016

GENERAL REQUIREMENTS
STACK 0003
FOR PASSIVE COMPONENTS
Issue 02
2. 1 Cont.
MIL202-M108 - Life (at elevated ambient temperature)

MIL202-M112 - Seal
MIL202-M204 - Vibration, High Frequency

MIL202-M210 - Resistance to Soldering Heat

MIL202-M211 - Terminal Strength

MIL202-M213 - Shock (Specified Pulse)
MIL202-M215 - Resistance to Solvents
QS9000 Quality System Requirements
RC14001 Responsible care management system
TL9000 Quality Management System Requirements Handbook (Telecoms)
TS16949 Quality Management System (Automotive)
UL-94 Flammability of plastic materials for parts in devices and appliances, tests for

3. TERMS AND DEFINITIONS
3.1 For the purposes of this specification, when the following terms are used in Italics they have the
meaning defined in this section:

Available: The required information is available to STACK Members by a method
agreed during registration.
Calendar Days: Continuous days, including weekends and holidays.
Deviation: User agreement to allow the delivery of a shipping lot which does not fully
meet the requirements of this specification. Considered equivalent to
concession for the purposes of this document.
Data Sheet: A device specification written by the device manufacturer.
Device: A passive component. Examples – “ceramic chip capacitor” or “wire
wound resistor”.
Device Specification: A device specification written by a user and agreed by the supplier.
DPM: Defects per million may also be referred as PPM (parts per million).
Form/Fit/Function: As defined in JESD46 i.e.:
Form - Visual appearance including shape, color, marking and surface finish etc.
Fit - External dimensions and associated tolerances etc.
Function - Electrical, mechanical, environmental, and performance characteristics
etc.
Generic Family: A group or family of devices with the same basic construction but with
differing values, i.e. capacitance, tolerance, voltage rating etc.
Incoming Lot: One or more shipments of a device, grouped together for the purpose of

incoming inspection.
Inner Container: A box or bag containing devices, either in magazines or bulk packaged.
LTPD: Lot tolerance percent defective.

IEC PAS 62686-2 © IEC:2016 – 17 –

STACK 0003
GENERAL REQUIREMENTS
FOR PASSIVE COMPONENTS Issue 02

3. 1 Cont.
Manufacturing Lot: A definite quantity of devices tracked at each manufacturing operation. It

is associated with a travel log and constitutes a group, homogeneously

processed through all manufacturing operations under uniform

manufacturing conditions.
May: Indicates a course of action which is permissible within the limits of this

document.
Magazine: Sticks, tubes, matrix trays, tape/reel etc.
MSL: Moisture Sensitivity Level relating to the packaging and handling
precautions needed for moisture sensitive surface mount devices, as
defined in J-STD-020.
Passive Components: Passive components are those that do not require electrical power to
operate (e.g., not capable of power gain). For the purpose of this
specification restricted to capacitors and resistors.
Package: The single item constructed of a containment material surrounding the
device with known outlines (physical size).
PCN: Product Change Notification.
Outer Container: An outer shipping container, consisting of one or more inner containers.
o o
Room Temperature: 25 C ± 5 C
Shall: Indicates a requirement.
Should: Offers a guideline or recommendation that might be used or helpful to
assure compliance to this document.
Shipping Lot: A single lot of one or more outer boxes received by a user.
Specification: This specification together with all other documents referred to as forming
part thereof.
Supplier: The company identified by the logo or name marked on the device.
Termination: Method by which the device is attached to a board, includes leads, pads,
balls, columns etc.
T min: Minimum operating temperature.
op
T max: Maximum operating temperature.
op
User: STACK Members or organizations authorized by the STACK Office to use
this specification.
Waiver: A written notice that a requirement of this specification no longer applies
or is relaxed as requested during the Registration process. If granted by
the STACK Members, the waiver shall be documented on the Registration
Certificate and is applicable to that individual supplier only.

4. ADMINISTRATION
4.1 Registration to this Specification:
4.1.1 Supplier Registration is a formal supplier declaration that the supplier's standard qualification
procedure, product monitor program and manufacturing processes are in compliance with this
specification or that compliance will be achieved in a specified time and, that the other
requirements of this specification will be met when devices are purchased to this specification. A
waiver may be granted at the discretion of the STACK Membership.

4.1.2 Suspension of Registration can occur if it is determined that a Registered supplier, is not fully
compliant with this specification, or any waivers granted and if after due discussion, an agreement
cannot be reached to resolve the problem. Registration may be suspended until the non-
compliance is corrected or a corrective action plan has been agreed upon. Suspension of
registration may have an impact on any certifications held.

– 18 – IEC PAS 62686-2:2016 © IEC 2016

GENERAL REQUIREMENTS
STACK 0003
FOR PASSIVE COMPONENTS
Issue 02
4. 2 Proprietary Data: Where the information provided for Registration or Certification purposes is
considered proprietary, that information shall be disseminated from the supplier to the STACK

Members through the STACK Office. Non Disclosure Agreements can be used, if required.

4.3 Deviations:
a) In the event that a supplier intends to deviate from the requirements of the purchase order,

relevant specifications, or this specification for a custom part where the user is known, prior

written consent must be obtained from the user. If device specific deviation procedures are
otherwise specified, those requirements will apply.
b) In the event that a supplier deviates from the requirements of the purchase order, relevant
specifications, standard data sheet, or this specification for an “off the shelf” catalogue part
where the user is unknown, the supplier shall distribute this information via their sales teams
and/or on their web pages and to all franchised distributors.
c) Applications for deviations must contain the following information. If any item is not known at
time of request, the request should be submitted with the remaining information to follow as
soon as practicable:
Supplier type number
Description of deviation(s)
Quantities or time period affected
User part number
Cause of deviations.
Corrective actions being taken to overcome the deviation on subsequent deliveries, as
required.
Date code
Part marking on device or smallest unit container.
LOT code
d) Devices subjected to application for a deviation shall be held at the supplier's premises pending
reply unless otherwise instructed by the user.

4.4 Updates to this Specification: Updates to this specification will be circulated to all STACK
registered suppliers. A period of time will be defined at each release date depending on the extent
of the change to allow suppliers to formally accept the new issue.

5. PROCEDURES
5.1 Product Discontinuation: Notification shall be as described in paragraphs 5.1.1, 5.1.2 below.

5.1.1 The supplier shall provide to the user a minimum 12 months notice of last order dates for single
source devices and 6 months for multi sourced devices.

5.1.2 The supplier may give less than the specified notice period provided a mutually acceptable
extension (up to the specification limit) is negotiated with any STACK Member needing a different
period.
IEC PAS 62686-2 © IEC:2016 – 19 –

STACK 0003
GENERAL REQUIREMENTS
FOR PASSIVE COMPONENTS Issue 02

5. 2 Specification Control: The supplier shall:
Note: This applies to custom and special order parts only.

a) When applicable have central or local record of the users part number and specification,

against the product to be delivered.

Note: This applies to direct sales and not for parts sold through franchised distribution.

b) Ensure the specifications on the purchase documents have been reviewed and accepted by

personnel authorized to do so.

5.3 Traceability:
a) The supplier shall have traceability for any device in a shipping lot through a route code, lot
code or other marking on the device or magazine or inner container to identify the
manufacturing route, e.g.: manufacturing location, assembly location, test location, date code
and or LOT code.
b) The information needed to interpret the code shall be available.
c) The procedure shall be available for inspection during audit.

6. SHIPMENT CONTROLS
The manufacturer’s name, logo and/or trademark shall be marked on the shipping container where
it is practical to do so.
6.1 Unit Pack Container Packing:
a) Unit Pack Container configurations should be in accordance with existing industry practices.
b) Components should be oriented in the same direction, in all Unit Pack Containers.

6.2 Intermediate Packing:
Intermediate container packing process should be designed to eliminate the presence of partial
quantities.
6.3 Date Codes:
6.3.1 Mixing
a) As a preferred methodology, there should be no more than one date code per unit pack
container. If this is not possible, then there should be no more than two (2) date codes in one
unit pack container per intermediate packing container. If two (2) date codes are used, the unit
pack container should be clearly identified as having mixed date codes and labels must indicate
the quantity for each date code.
b) If possible, there should be no more than three date codes per sealed intermediate container.
The label on the intermediate container should list all date codes and quantities by date code.

6.3.2 Remarking: If the date of assembly and test are both marked, the test date can be remarked if the
device is re-tested at a later date. If only one date is marked to represent the manufacturing date
and initial electrical test it shall not be changed unless it is necessary to correct poor quality
marking or incorrect information and provided that the time delta between the original mark and
the remark is less than 6 weeks.

6.3.3 Age on Delivery:
a) The date codes of devices shall not be older than 48 months upon users receipt date.
b) Exception for Aluminum Electrolytic capacitors which shall not be older than 24 months.
c) If the supplier wishes to ship devices outside the specified limit, the deviation procedure should
be used.
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6. 4 MSL: Labeling and packaging shall be in accordance with J-STD-033 or equivalent.

6.5 Lead-Free Marking: Shipping container and date code marking shall be in accordance with J-

STD-609A.01 or equivalent.
6.6 Labels General:
a) Human Readable Content: The content shown for each label in this section shall be available

in human readable form on the outside of the relevant package.
b) Machine Readable Content: Bar codes for those items specified shall be included in 3 of 9
code (bar code 39) per EIA556 or equivalent compatible standard.
c) Warning notices: Any necessary warning notices or symbols to ensure the safety of the
contents shall be included as appropriate.

6.6.1 Label Content:
Dry pack label (for MSL applicable parts): Bar code
a) Date of sealing and sealed life or expiration date.
b) Time and storage condition limits after opening.
c) Bake conditions if usage conditions after opening are violated.
d) Moisture sensitivity classification per J-STD-020 or per suppliers own
classification provided a cross reference is provided at registration.
Outer container label: This label is typically implemented as a shipping note or
packing list attached to the outer container. For security reasons items d), e) & f)
can be omitted with the agreement of the user
a) Delivery address.
b) Purchase Order number. *
c) User part number. *
d) Supplier device type number. *
e) The supplier’s name.
f) Quantities enclosed of each device type. *
g) Export Control Classification Number (preferred but not mandatory)

Inner container label:
a) Supplier device type number. *
b) User part number.  (preferred but not mandatory) *

c) Purchase order number.  (preferred but not mandatory) *
d) Quantity of devices. *
e) Date code. *
f) Lot number. *
g) Assembly location.  (preferred but not mandatory)
h) Test location.   (preferred but not mandatory)

IEC PAS 62686-2 © IEC:2016 – 21 –

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6. 7 ESD:
a) Protection: All devices must be supplied in suitable protective packaging with electrostatic
properties meeting the requirements of EIA541.

b) Marking: Symbols used and labeling shall be in accordance with EIA471 or equivalent.

6.7.1 All packaging should be static safe (non-generative as a minimum) to safeguard sensitive products

occupying the same manufacturing areas.

7. PRODUCT OR PROCESS CHANGE NOTIFICATION (PCN)

7.1 Notification: In the event of the supplier proposing or making a change to a device, then:
a) The supplier shall give at least 90 calendar days written notice prior to shipping changed
product. The user will respond to confirm the date that changed product shipments can begin
(could be less than 90 calendar days), advice that changed product is not acceptable, or
request further information.
b) In an event beyond the control of the supplier where 90 calendar days notice cannot be given,
the supplier shall reach a mutually agreed lesser notice period with any STACK Member
affected by the change.
7.2 Notification Details: The PCN shall include the following items:
a) Title of change.
b) Supplier type number(s) affected.
c) Supplier notification identification number.
d) Estimated last order and shipment dates for unchanged devices to be supplied on request.
e) Estimated earliest shipment date of changed devices.
f) Manufacturing location and product line affected.
g) A thorough description of the proposed change.
h) Means of distinguishing changed devices from unchanged devices. This may be a date code,
lot code, date code range or distinguishing marking or feature that is visible to the user at point
of receipt of shipment.
i) Sufficient engineering and/or qualification test data, including details of any qualification test
vehicle used and its applicability to the product change, shall be available on request to
demonstrate that the change will not adversely affect device form, fit, function, quality or
reliability, and that the changed product will continue to meet the specified requirements.
j) User part number of the affected device (preferred item but not mandatory).

8. ELECTRICAL
8.1 Operating Conditions: Shall be as defined in the device specification or data sheet.

8.2 Electrical Test: All packaged devices shipped must have passed a production electrical test, or
in the case of user-specific devices, an electrical test approved by the user. JEDEC, Mil Std. and
AEC test methods shall be used wherever possible.

9. MECHANICAL
9.1 Device Marking:
9.1.1 Legibility: All the specified markings on the device shall be clearly legible.

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9. 1.2 Top Surface: All of the following required markings shall be marked on the topside except where
otherwise indicated below:
a) Pin 1or the Polarity Indicator identifiable either by a mark or by reference to a physical feature

of the device.
b) The supplier’s name or logo.

c) The supplier part number or individual user part number as required.

d) Date code of assembly or test. Formats YYWW, or YWW or YM are acceptable. Y=year numeral,

W=week numeral, M=month character. If both assembly and test date codes are marked the assembly
code may be bottom marked.
9.1.3 Small Packages: If the marking area available on the device is too small to do so, then the
smallest unit container is to include all the required marking.

9.1.4 Lead-Free components and/or packaging are to conform to JESD97 for Marking, Symbols, and
Labels for Identification of Lead (Pb) Free Components.

9.2 Moisture Sensitivity: All moisture sensitivity components shall be tested and classified according
to J-STD-020. The MSL classification shall be included on the device or the container marking if
appropriate.
9.3 Termination Finishes: The following termination finishes are for reference only and intended to
be representative of common finish types utilized for passive components. The use of bright tin or
any other pure tin without suitable under plating is prohibited. All finish types shall be compatible
with any conventional soldering assembly process.

9.3.2 The supplier shall provide notification of changes, via the PCN process, to termination finish
materials, thickness, or to plating process chemistry.

9.3.3 Non-RoHS: Tin-lead (SnPb) containing a minimum of 3% lead (Pb) applied over a suitable barrier
metal to prevent leaching (tin/lead alloy 60/40 and 63/37 are the most common).

9.3.4 RoHS: Tin over nickel (Sn/Ni), tin over copper (Sn/Cu), nickel over palladium (Ni/Pd), nickel over
gold (Ni/Au), nickel over palladium over gold (Ni/Pd/Au), tin-bismuth (Sn-Bi), tin-copper (Sn-Cu),
tin-silver-copper (Sn-Ag-Cu) or 100% Tin (Sn) are example. Termination finishes claimed to be
RoHS compliant shall not contain lead or other restricted substances.

9.3.5 Other (Special) Termination Finishe
...