Overview
IEC 60115-4-10:2023 - Fixed resistors for use in electronic equipment - Part 4‑10 - is a blank detail specification (Edition 1.0, December 2023) published by the IEC. It provides a template and required content, style and layout for drafting detail specifications for fixed power resistors with axial leads intended for through‑hole assembly (THT) on circuit boards, for general electronic equipment (classification level G) as defined in IEC 60115‑1:2020. This document is supplementary to the sectional specification and is intended for use when creating product‑specific detail specifications.
Key topics and requirements
The standard addresses the minimum contents and technical topics that detail specifications must include. Major sections covered are:
- Identification and scope - template use, resistor identification and intended application (classification level G).
- Characteristics and ratings - dimensions, electrical ratings, resistance ranges and tolerances, temperature coefficient, and derating guidance.
- Tests and test severities - a comprehensive test programme including resistance measurement, temperature coefficient, temperature rise, endurance (including endurance at 70 °C and other specified temperatures), short‑term overload, ESD, shock and vibration, rapid temperature change, climatic and damp‑heat tests, solderability (lead‑free and SnPb), resistance to soldering heat, solvent resistance, insulation resistance, voltage proof and flammability.
- Performance requirements - limits for change of resistance after tests, permitted temperature‑related resistance variation, temperature rise limits, visual criteria and solderability/pass/fail limits.
- Marking, packaging and ordering information - required data for components and packaging.
- Quality assessment procedures - 100% testing, certificates of conformity, qualification approval, maintenance and lot release testing.
Figures and tables in the document provide outline dimensions, derating curves, climatic categories and test schedules to support consistent specification drafting.
Practical applications and users
IEC 60115‑4‑10 is useful for:
- Resistor manufacturers preparing product detail specifications and datasheets for axial lead power resistors (THT).
- Component engineers and purchasers who need consistent procurement specifications and acceptance criteria.
- Test laboratories and quality teams designing test programs that align with IEC requirements.
- Design engineers specifying through‑hole power resistors for general electronic equipment to ensure reliability and compliance.
Keywords: IEC 60115-4-10, fixed power resistors, axial leads, THT, through‑hole resistors, classification level G, detail specification, resistor testing, solderability, temperature coefficient.
Related standards
- IEC 60115‑1:2020 - general terms, definitions and classification (classification level G referenced).
- Other parts of the IEC 60115 series (sectional and detail specifications) that apply to different resistor styles or application classes.