IEC 60352-5 is the international standard for solderless press-in connections used in electronic and telecommunication equipment. It provides the technical roadmap for creating reliable electrical joints by mechanically pressing a terminal into a plated-through hole on a circuit board, eliminating the need for traditional soldering. The Evolution of the Standard
The standard has evolved through several editions to keep pace with advancing technology:
Third Edition (2008): Focused on clarifying materials and adding testing recommendations.
Fourth Edition (2012): Refined design specifications and updated testing methodologies to align with modern manufacturing.
Fifth Edition (2020): The latest revision, which expanded the scope to include non-printed boards (like metal boards) and updated copper thickness limits for plated holes. Key Components & Requirements
The standard ensures that press-in connections can withstand mechanical, electrical, and environmental stress.
Mechanical Integrity: Defines requirements for insertion and push-out (extraction) forces to ensure a secure fit.
Electrical Performance: Specifies methods for measuring contact resistance to ensure stable signal and power transmission.
Environmental Testing: Includes climatic sequence and aging tests to verify long-term stability in various atmospheres.
Dual Test Schedules: Features a qualification test for individual terminations and an application test for terminations already integrated into components. Primary Applications
IEC 60352-5 is a critical reference for several industry roles:
Connector Manufacturers: Use it for product design and global quality validation.
PCB Designers: Refer to it for precise hole dimensions and plating specifications.
Quality Assurance Labs: Follow the standardized testing to ensure consistency across different suppliers and tools.
You can find the full document or historical versions through authorized distributors like Accuris or European Standards. IEC 60352-5:2012 iec 603525 pdf
The primary feature of IEC 60352-5 is that it provides a standardized framework for the design, testing, and application of solderless press-in (press-fit) connections
. These connections are increasingly preferred in modern electronics because they are often more reliable than traditional soldering—with some estimates suggesting they are at least 10 times more reliable iTeh Standards
Key "good features" and highlights from the latest version ( IEC 60352-5:2020 ) include: 1. Expanded Scope for Modern Materials Non-PCB Substrates
: The standard now recognizes "board," "hole," and "metal board" as valid substrates, acknowledging that press-in technology is no longer limited to traditional printed circuit boards. Broader Application
: It removed specific wording about "telecommunication equipment," expanding its applicability to virtually all types of electrical and electronic components. iTeh Standards 2. Enhanced Mechanical Verification Force Profile Graphs : The 2020 edition added requirements for graphing both press-in and push-out forces
. These visual profiles provide deeper insight into the mechanical performance and integrity of the contact zone during assembly. Updated Plating Limits
: Copper thickness limits for plated-through holes have been modified to reflect current manufacturing trends and market practices. iTeh Standards 3. Streamlined Testing Schedules Two-Tiered Testing : The standard maintains two distinct schedules: a Qualification
schedule for general product approval of press-in zones and an Application schedule for specific use-case validation. Efficiency
: The latest revision reduced the number of required test specimens, as older versions often resulted in excessive discarded samples. iTeh Standards 4. Practical Design & Assembly Guidance (Annex A) Hole Manufacture
: Includes examples of drilling and hole sizing for board designers. Current-Carrying Capacity
: Provides data on how these connections handle electrical loads. Repair Procedures
: Offers best practices for repairing or replacing connections without damaging the board. iTeh Standards Summary of Advantages for Engineers Solderless process Eliminates thermal stress and solder bridges/cold joints. Environmental Friendly "Green" process that avoids lead or flux residues. Cost Efficiency Faster manufacturing process with reduced assembly time. Reliability
Proven mechanical stability under vibration and environmental stress.
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The current version of the international standard for solderless press-in connections is IEC 60352-5:2020 (Edition 5.0). This standard specifies requirements, test methods, and practical guidance for connections made by inserting a termination (press-in post) into a plated-through hole of a board. 0;16;
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Purpose: To determine the suitability of press-in connections under mechanical, electrical, and atmospheric conditions. Updates in 5th Edition0;52c;:
Expanded scope to include "electrical and electronic equipment and components" beyond just telecommunications.
Revised terminology to cover a wider range of board materials, including non-PCB substrates.
Updated test schedules and refined mechanical/plating limits to match modern manufacturing practices0;ab8;.
Structure: Includes normative test procedures and an informative Annex A providing practical assembly and board-design guidance. 18;write_to_target_document7;default0;10e;18;write_to_target_document1a;_ha7sadL8M42JptQP95yrqQ8_20;2a; Where to Obtain the PDF 0;16;
Official versions can be purchased and downloaded from authorized standards distributors: 0;16; 0;145;0;8cd;
IEC Webstore0;415;: Official source for the latest International Electrotechnical Commission publication.
ANSI Webstore0;569;0;4c2;: Provides the standard in Adobe Acrobat PDF format (note: some files may be DRM-protected).
BSI Knowledge0;6da;0;852;: Offers the British adoption (BS EN IEC 60352-5). 0;2a;
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Previews and samples of previous editions (2012, 2008) are sometimes hosted on sites like iTeh Standards0;611; or Scribd0;7d0; for reference. 18;write_to_target_document7;default0;10e;18;write_to_target_document1a;_ha7sadL8M42JptQP95yrqQ8_20;16;
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It is important to clarify upfront: there is no official standard designated as “IEC 603525.” The International Electrotechnical Commission (IEC) uses a structured numbering system, and the format 603525 does not correspond to any existing published document.
The most likely scenario is a typographical or OCR (Optical Character Recognition) error based on two extremely popular and similar standards: IEC 60352 and IEC 60335. Specifically:
Given the frequency of searches for “IEC 60335 PDF” (Safety standard), this article will assume you are looking for IEC 60335. However, we will also clearly outline the difference to ensure you find the exact correct document.
| Standard | Scope | Key Difference | |----------|-------|----------------| | IEC 60335 | Household appliances (<250 V) | Performance and safety integrated; Part 2 structure | | IEC 61010 | Laboratory / measurement equipment | Focus on operator protection, test leads, hazardous outputs | | IEC 60601 | Medical electrical equipment | Patient protection (BF/CF types), leakage current microamps | | UL 60335 | North American adoption | Harmonized with IEC 60335 but includes 120 V, 60 Hz differences |
UL 60335-1 (based on IEC 60335-1 Ed. 5) now replaces older UL 749, UL 1005, etc., for many appliances.
If your original “603525” was a typo for IEC 60352 (dropping the last digit), then you are in the world of electronic interconnections. That series includes:
However, IEC 60352 has no part “25,” so the 603525 corruption is less likely here.
IEC 60335 is a series of international standards that deal with the safety of electrical appliances for household and similar purposes. It covers everything from toasters and washing machines to electric tools and commercial catering equipment.
The standard is divided into two main parts:
A typical hair dryer certified to IEC 60335 must pass: