Overview
IEC 61189-2-801:2023 is an international standard published by the International Electrotechnical Commission (IEC) that specifies a reliable method for assessing the thermal conductivity of base materials used in electrical materials, printed boards, and other interconnection structures and assemblies. This standard outlines a test methodology that employs a screened-on carbon ink heating pattern to evaluate the thermal performance of a dielectric layer on a metal base plate-an important quality characteristic for materials used in high-performance electronic systems.
By providing a consistent thermal conductivity test method, IEC 61189-2-801:2023 enables manufacturers, laboratories, and quality assurance teams to compare materials objectively and ensure products meet critical safety and reliability requirements in electronic assemblies.
Key Topics
- Test Method Fundamentals:
The standard details the use of a carbon ink heating element applied via screen printing onto the test specimen, creating a pattern used to evaluate heat flow through the dielectric layer.
- Specimen Preparation:
Describes required specimen size, configuration, and preparation steps to ensure uniformity and repeatability in testing.
- Materials and Equipment:
Lists instruments and consumables necessary for conducting the test, such as screen printing tools, carbon ink, thermocouples, hot plates, and data acquisition systems.
- Test Procedures:
Outlines conditioning, test setup, calibration, step-by-step execution, and necessary environmental controls (temperature, humidity).
- Data Analysis and Reporting:
Specifies requirements for recording, processing, and reporting test results, including calculation of averages, deviations, and detailed material identification.
Applications
The test methods laid out in IEC 61189-2-801:2023 hold significant value in several practical contexts:
- Quality Control for Printed Circuit Board (PCB) Manufacturers:
Enables accurate benchmarking of dielectric and base materials to ensure consistent thermal management in final products, which is critical for device reliability, especially in high-power electronics.
- R&D and Material Evaluation:
Assists engineers and developers in comparing new materials or technologies for heat dissipation and insulation performance within printed circuit board design and assembly.
- Supplier Qualification:
Provides a recognized and repeatable method for vendors and OEMs to verify material compliance and make informed sourcing decisions.
- Certification and Compliance:
Essential for third-party testing houses and laboratories to provide standardized certification of thermal performance, helping clients meet international market requirements.
- Failure Analysis:
Useful for diagnosing and analyzing materials that may contribute to heat-related failures in electronic devices.
Related Standards
For a comprehensive approach to testing and qualification of electrical materials and assemblies, users may wish to consult:
- IEC 61189 Series:
Encompasses a wide range of test methods for electrical materials, printed boards, and interconnections, addressing various performance characteristics.
- IEC 62899-202:
Covers materials and methods relevant to conductive inks, which may complement testing and evaluation activities for printed electronics.
- General IEC and ISO Standards:
Contribute further requirements and definitions relevant to electronics assembly and materials testing.
By observing IEC 61189-2-801:2023, organizations can ensure that thermal conductivity measurements are conducted with consistency, accuracy, and global recognition-supporting the development and quality assurance of reliable, high-performance electronic assemblies. For the latest updates and comprehensive details, always consult the current official IEC publication.
Open preview (PDF)Test methods for electrical materials, printed boards and other interconnection structures and assemblies - Part 2-801: Thermal conductivity test for base materials
