EN 129102:1994/A1:1995

Overview

EN 129102:1994/A1:1995 is a European blank detail specification for wirewound surface mounting inductors (SMD inductors) of assessed quality at assessment level P. Issued under the CLC/CENELEC framework and later adopted by national bodies (e.g., SIST EN 129102:2002/A1:2002 in Slovenia), this document provides a template and framework manufacturers and purchasers can use to define and agree the detailed technical and quality requirements for wirewound SMD inductors.

Key topics and requirements

While the standard itself is a blank detail specification (intended to be completed for specific products), it centers on the following technical and quality aspects:

• Scope and product identification - definition of the component family (wirewound, surface-mount inductors) and reference to the assessment level P (assessed quality).
• Detail specification template - sections for electrical characteristics, mechanical dimensions, tolerances, and performance limits that parties fill in for a particular inductor type.
• Quality and assessment criteria - framework for quality confirmation consistent with assessed quality designation (assessment level P).
• Testing and verification - placeholders for required test methods, environmental and reliability tests, and acceptance criteria to be specified for the component.
• Marking, packaging and documentation - provisions for labelling, delivery documentation and traceability to support procurement and quality control.
• Amendment A1 - indicates the document includes updates to the original 1994 text as promulgated in A1.

Note: this specification is intended as a contractual/template document rather than a prescriptive test method text.

Applications

• Creating manufacturer datasheets and customer detail specifications for SMD wirewound inductors.
• Defining procurement and acceptance criteria in supply contracts for electronic components.
• Supporting component selection for electronic assembly design where assessed quality and traceability are required.
• Establishing consistent documentation for regulatory compliance, quality assurance, and incoming inspection.

Who uses this standard

• Component manufacturers and component engineering teams
• Purchasing and procurement specialists in electronics manufacturing
• Quality assurance and test laboratories
• Design engineers specifying passive components for PCB assemblies
• Compliance officers managing component conformity and supplier assessment

Related standards

• Other EN/IEC standards and CLC documents covering passive components, SMD component testing and electromechanical component quality frameworks.
• National adoptions such as SIST EN 129102:2002/A1:2002 (Slovenia).

Keywords: EN 129102, wirewound surface mounting inductors, SMD inductors, assessed quality, assessment level P, blank detail specification, CLC, component specification.