IEC 60115-2-10:2023

Overview

IEC 60115-2-10:2023 - "Fixed resistors for use in electronic equipment - Part 2‑10" - is a blank detail specification from the International Electrotechnical Commission (IEC) for low‑power film resistors with leads intended for through‑hole technology (THT) assembly on circuit boards. This first edition replaces IEC 60115‑2‑1:1982 and provides an updated technical template that manufacturers and specifiers can use to define characteristics, ratings, test schedules and acceptance criteria for general‑purpose resistors at classification level G.

The document is intended to be used with the generic procedures in IEC 60115‑1:2020 (quality assessment) and supports modern industry needs such as lead‑free soldering, electrostatic discharge (ESD) robustness and flammability testing.

Key topics and technical requirements

The specification defines the essential characteristics and test requirements for THT low‑power film resistors, including:

• Dimensions and mechanical requirements (outline, lead eccentricity, coating length onto leads).
• Ratings and climatic categories for intended application environments.
• Resistance ranges, tolerance and temperature coefficient tables to correlate electrical performance with tolerance classes.
• Test schedules and severities for: resistance, temperature coefficient, temperature rise, endurance (including 70 °C and UCT), short‑term overload, vibration, rapid temperature change, climatic sequence, damp heat, insulation resistance and voltage proof.
• Modernized tests added in this edition: ESD robustness, solvent resistance, flammability, and both lead‑bearing and lead‑free solderability.
• Visual acceptance criteria and detailed packaging/marking requirements, including visual examination of primary and proximity packaging.
• Quality assessment procedures aligned with a zero‑defect approach (avoiding historic AQL levels), with correlated test schedules for qualification approval and routine quality conformance inspections.
• Optional coverage for 0 Ω resistors (jumpers) and stability requirements grouped into stability classes.

Practical applications and who uses this standard

IEC 60115‑2‑10:2023 is relevant to:

• Resistor manufacturers developing product datasheets and internal QA/qualification plans.
• Component engineers and procurement teams who need standardized specifications for sourcing THT low‑power film resistors.
• Quality assurance and test laboratories implementing qualification and conformance inspection test schedules.
• PCB assembly and manufacturing engineers verifying solderability (including lead‑free processes) and mechanical robustness.
• Compliance and reliability engineers assessing ESD robustness, solvent resistance and flammability for end‑products.

Using this standard helps ensure consistent performance, reliable supply acceptance criteria and smoother regulatory and supplier qualification processes.

Related standards

• IEC 60115‑1:2020 - Generic specification and quality assessment procedures (primary reference for assessment).
• IEC 60115‑2:2023 - Sectional specification and Annex B visual criteria referenced for additional visual acceptance guidance.

Keywords: IEC 60115-2-10:2023, low‑power film resistors, through‑hole technology (THT), fixed resistors, resistor specification, solderability, ESD, flammability, zero‑defect quality assessment.