EN 140200:1996/A1:2001

Overview

EN 140200:1996/A1:2001 (Sectional specification: Fixed power resistors - Amendment A1) is a CENELEC European amendment that modifies the original EN 140200:1996. Adopted in April 2000 and published in official English/French/German versions, this document is a sectional specification for fixed power resistors (high dissipation). It clarifies requirements used by manufacturers and conformity assessment bodies for structural similarity, manufacturing control and final measurement considerations. The standard is indexed under ICS 31.040.10 and was transposed into national editions (e.g., SIST EN 140200:2002/A1:2002).

Key Topics and Technical Requirements

The amendment focuses primarily on the definition and requirements for structural similarity of resistors and includes these key points:

• Structural similarity criteria - Resistors are accepted as structurally similar when they meet one or more of the following:
  • Manufactured at one or more sites using the same specified raw materials, manufacturing and quality inspection procedures, and the same product and quality controls as the prime manufacturing site.
  • All manufacturing sites are supervised by the same National Supervising Inspectorate (ONS); preferably the ONS of the prime site country.
  • They share the same stability class and climatic category.
  • They differ only in physical dimension.
  • They have similar terminal types.
• Prime manufacturing site and CECC System Manager - When multiple sites exist, the manufacturer must nominate a prime site and the associated CECC System Manager responsible for overall control.
• Measurement exceptions - Resistors that differ only in stability class or climatic category may still be treated as structurally similar if the differing requirements are assessed separately during final measurements.
• Administrative timeline: national implementation and withdrawal dates were defined when the amendment was approved.

Practical Applications and Users

Who uses EN 140200:1996/A1:2001:

• Manufacturers of fixed power (high-dissipation) resistors to define product families, production controls and cross-site conformity.
• Quality and compliance engineers establishing acceptance criteria and demonstrating structural similarity for certification.
• Test laboratories and notified bodies/ONS that supervise manufacturing sites and verify compliance.
• Procurement and design engineers who need to specify compliant resistor components and validate supplier claims.

Practical benefits:

• Enables streamlined type-approval and production across multiple manufacturing sites.
• Clarifies administrative and measurement rules for stability/climatic variations.
• Supports consistent quality control and conformity assessment for fixed power resistor product lines.

Related Standards

• EN 140200:1996 (original sectional specification) - this amendment supersedes parts of the original text.
• National adoptions (e.g., SIST EN 140200:2002/A1:2002) reflect the amendment at country level.

Keywords: EN 140200:1996/A1:2001, fixed power resistors, sectional specification, CENELEC, structural similarity, stability class, climatic category, CECC, ONS.