Overview
SIST EN IEC 60115-2:2026 is an international standard published by CLC, aligning with IEC 60115-2:2023. This document specifies requirements for fixed low-power film resistors with leads, intended for through-hole technology (THT) mounting on printed circuit boards (PCBs) in electronic equipment. These resistors use a resistive film element protected by a conformal lacquer coating and feature wire terminations for efficient PCB assembly.
The objective of this sectional specification is to define preferred ratings, characteristics, and performance requirements, as well as to reference relevant quality assessment procedures, tests, and measuring methods for these resistor types.
Key Topics
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Scope and Applicability
SIST EN IEC 60115-2:2026 covers fixed low-power film resistors with termination leads. It addresses various geometric shapes and dimensions, and encompasses different product technologies commonly used in electronic equipment.
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Preferred Styles and Dimensions
The standard provides preferred resistor styles and standardizes key dimensions such as body size, lead spacing, and allowable lead eccentricity. It updates legacy styles and incorporates improved guidance on dimensional tolerancing.
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Climatic and Electrical Ratings
The document prescribes preferred climatic categories and electrical characteristics including resistance values, tolerances, rated power dissipation, maximum element voltage, and insulation specifications.
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Testing and Quality Assessment
It details required and optional quality tests, including:
- Endurance and overload tests
- Solderability (supporting lead-free and SnPb solders)
- Robustness of terminations
- Climatic sequence and accelerated damp heat tests
- Visual examination and mechanical measurement standards
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Performance and Marking Requirements
General performance requirements ensure consistency across manufacturers. The standard specifies marking methods for both components and packaging, facilitating traceability and compliance.
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Packaging, Handling, and Ordering Information
Guidelines for packaging and storage help preserve quality during handling and transport. Ordering information requirements support clear supplier-customer communication.
Applications
Resistors covered by SIST EN IEC 60115-2:2026 are widely used in:
- Consumer Electronics: Radios, TVs, audio equipment, and home appliances
- Industrial Equipment: Control panels, automation devices, sensors, and measurement systems
- Telecommunications: Switches, routers, communication modules, and signal processing gear
- Automotive Electronics: Instrument clusters, control modules, and lighting boards
- General Electronic Circuit Boards: Any devices requiring precise and stable resistance elements
Through-hole film resistors remain vital where mechanical robustness, ease of inspection, and reliable manual or automated insertion are required. The standard supports manufacturers, designers, and OEMs in qualifying components for durable, high-quality THT assemblies.
Related Standards
The following standards are closely linked to SIST EN IEC 60115-2:2026, either for general requirements or for specialized testing and quality procedures:
- EN IEC 60115-1 – Generic specification for fixed resistors
- EN IEC 60068 series – Environmental testing methods
- EN IEC 60286-2 – Packaging of components for automatic handling
- EN IEC 60717 – SMD land pattern guidelines
- EN IEC 61191-1 / 61191-3 – Requirements for PCB assembly
- EN 60195 / EN IEC 60440 – Additional resistor testing standards
By following SIST EN IEC 60115-2:2026, organizations ensure conformity, reliability, and interoperability of low-power film resistors for through-hole electronic assembly, promoting product quality and compliance in global markets.
