Electronics Standards Summary – September 2025 (Part 1 of 2)

Looking back at September 2025, the Electronics industry experienced a significant wave of standards activity that addressed not only component-level quality and performance but also the evolving regulatory backdrop and emerging technology needs. In this first part of our comprehensive two-part monthly series, we analyze five newly published standards that span semiconductor devices, capacitors for electromagnetic interference (EMI) suppression, and the rigorous measurement of optoelectronic components for fibre optic systems. For professionals charged with compliance, engineering design, procurement, or quality management, this recap distills the month’s most actionable updates, highlights key requirements, and examines the broader implications for the sector.

With mounting demands for reliability, interoperability, safety, and new test methods, these standards offer a cross-sectional view into the strategic direction the electronics marketplace is heading. This analysis is indispensable for organizations aiming to maintain a competitive edge and regulatory conformity.

Monthly Overview: September 2025

September 2025 marked a substantive period for the Electronics sector’s standardization efforts, especially within the normalized ICS category of Semiconductor Devices and Passive Electronic Components. The month saw the publication of five key standards, covering revisions for thyristors and rectifier diodes, and updates to detail specifications for capacitors used in EMI suppression and safety applications—plus methods for precise measurement of optoelectronic devices.

Key themes and trends:

• Advanced measurement and terminology: Several documents incorporate new thermal management concepts and updated measurement protocols, reflecting heightened emphasis on component efficiency and reliability in demanding environments.
• EMI and safety compliance: Refined specifications for EMI suppression capacitors point to the industry's ongoing prioritization of both safety and electromagnetic compatibility as foundational to electronic applications.
• Hybridization and integration: The optoelectronics measurement standard reveals the growing centrality of fibre optic technologies and interdisciplinary device design.

When compared to typical publication patterns, September 2025’s releases balance the maintenance of foundational electrical component standards with significant technical updates. This suggests continued industry convergence on safer, more interoperable, and higher-performing electronic systems.

Standards Published This Month

IEC 60747-6:2025 – Discrete Semiconductor Devices – Thyristors

Semiconductor devices – Part 6: Discrete devices – Thyristors

IEC 60747-6:2025 specifies the product-specific standards for a wide spectrum of discrete thyristors, encompassing reverse blocking triode thyristors, reverse conducting triode thyristors, bidirectional triode thyristors (triacs), and turn-off thyristors. The standard tightly defines terminology, letter symbols, essential ratings and characteristics, measuring and test methods, type tests, routine tests, endurance tests, and marking requirements.

This latest edition introduces new terms and definitions, especially regarding partial thermal resistance junction-to-case and related voltage terminology. Clauses regarding tests and ratings have been updated with targeted amendments and the removal of obsolete practices. These changes aim to clarify device behavior and enhance application-specific reliability, crucial as thyristors remain foundational components in industrial, consumer, and automotive electronics.

Key user groups include manufacturers and integrators of power conversion, motor drives, lighting controls, and safety-critical circuits—any entity relying on robust solid-state AC power switching or control.

Key highlights:

• Expanded terminology for thermal dynamics (junction-to-case)
• Streamlined test and measurement methods for modern device portfolios
• Enhanced clarity in marking and type/routine/endurance test procedures

Access the full standard:View IEC 60747-6:2025 on iTeh Standards

IEC 60747-2:2025 – Discrete Semiconductor Devices – Rectifier Diodes

Semiconductor devices – Part 2: Discrete devices – Rectifier diodes

Serving as the principal reference for discrete rectifier diodes—including generic, avalanche, fast-switching, and Schottky barrier types—IEC 60747-2:2025 standardizes key parameters, terminology, and test methods that support global interoperability and safety. In this edition, terms reflecting partial thermal resistance have been introduced, while outdated information has been pruned from vital clauses to sharpen the focus on present-day performance and manufacturing realities.

Detailed requirements are provided for measurement and rating of voltages, currents, dissipation, thermal resistance, and characteristic times, with thorough directions for type, routine, and endurance testing. The standard is especially valuable for manufacturers and system designers in renewable energy systems, power supplies, automotive modules, instrumentation, and any applications requiring rectification of AC to DC.

Key highlights:

• Newly incorporated terminology facilitating improved thermal management and reliability assessments
• Updated procedures for routine/type/endurance testing, reducing ambiguity
• Alignment with global marking and test requirements for fast-changing markets

Access the full standard:View IEC 60747-2:2025 on iTeh Standards

IEC 60384-14-1:2025 – EMI Suppression Capacitors (Assessment Level DZ)

Fixed capacitors for use in electronic equipment – Part 14-1: Blank detail specification – Fixed capacitors for electromagnetic interference suppression and connection to the supply mains – Assessment level DZ

IEC 60384-14-1:2025 plays a crucial role in harmonizing the approval process for EMI suppression capacitors. This edition replaces rigid dimension tables with a more flexible guidance approach, and crucially expands procedures to accommodate DC operation and high-humidity service conditions—both of which are increasingly relevant in modern electronic and electrotechnical systems that must deliver unwavering reliability in global environments.

By defining quality assessment at the DZ level (zero defects), the standard targets high-volume, mass production contexts. It systematically details design declarations, batch conformance, and requalification tests, providing assurance frameworks vital to consumer electronics, industrial drives, and infrastructure controls. Its companion documents—IEC 60384-1 and IEC 60384-14:2023—are required references.

Key highlights:

• Guidance-based approach for dimensions
• New focus on DC and high-humidity endurance
• Harmonization of safety approval processes and test schedules

Access the full standard:View IEC 60384-14-1:2025 on iTeh Standards

IEC 60384-14-2:2025 – EMI Suppression Capacitors (Safety Tests Only)

Fixed capacitors for use in electronic equipment – Part 14-2: Blank detail specification – Fixed capacitors for electromagnetic interference suppression and connection to the supply mains – Safety tests only

Designed as a companion to IEC 60384-14-1 but focused exclusively on safety tests, this edition streamlines conformity requirements for fixed capacitors by eschewing full quality conformance (as seen in DZ-level specifications) in favor of rapid and cost-effective safety validation—an approach often suitable for specialized or low-volume products.

Updates mirror those seen in Part 14-1, including flexible dimensioning, provisions for DC and high-humidity operation, and updated reference harmonization. The standard is indispensable for applications where EMI suppression in supply mains interface is mission-critical but extensive QA assessment is not feasible.

Key highlights:

• Tailored specifically for safety test requirements (excluding extended QA)
• Guidance text for construction features, facilitating more adaptable manufacturing
• Required for compliance in niche or cost-sensitive high-safety applications

Access the full standard:View IEC 60384-14-2:2025 on iTeh Standards

EN IEC 62007-2:2025 – Optoelectronic Devices for Fibre Optic Systems: Measuring Methods

Semiconductor optoelectronic devices for fibre optic system applications – Part 2: Measuring methods

EN IEC 62007-2:2025 delivers a sweeping update to the measurement methodologies for optoelectronic components—such as LEDs, laser diodes, and photoreceivers—used in fibre optic digital communication systems and subsystems. This third edition not only corrects technical errors from previous versions but also provides new definitions, refined calculation methods (such as 1 dB compression points and relative intensity noise), and updates to measurement circuit diagrams.

These rigorously detailed methods underpin the global interoperability and performance validation of optical communication components and modules—vital for telecommunications, data centers, industrial automation, and sensing applications. The broad array of measurement procedures enables precise, repeatable characterization necessary for next-generation high-speed networks.

Key highlights:

• Corrected and clarified technical formulas and key definitions (e.g., "optical fibre pigtail")
• Updated, accurate signal integrity and noise measurement circuits
• Explicit step-by-step guidance for new and existing optoelectronic devices

Access the full standard:View EN IEC 62007-2:2025 on iTeh Standards

Common Themes and Industry Trends

A clear pattern weaving through September 2025's standards is the widespread modernization of terminology and test methodologies, particularly in regard to thermal behavior, endurance in adverse environments, and safety assurance. The refreshed EMI suppression standards reflect a broader industry push toward flexible, robust product compliance, particularly as electronic components are used in increasingly diverse climates and supply configurations.

Simultaneously, the new measurement standards for semiconductor and optoelectronic devices underscore the industry’s transition toward more precise device characterization—an essential trait as system speeds rise and miniaturization continues. Sectors experiencing the strongest impact include power electronics, smart grids, automotive electrification, and ultra-high-speed communications.

Notably, the increased focus on test repeatability, batch validation, and real-world performance (especially under DC and high humidity) hints at industry concern for lifecycle accountability and operational safety—not just initial compliance.

Compliance and Implementation Considerations

For organizational leaders, engineers, and compliance professionals, the following pragmatic steps and recommendations arise from these standards:

• Engage cross-functional teams: Involve design, procurement, compliance, and test engineering staff early to analyze how terminology updates (particularly regarding thermal and endurance requirements) affect component selection and documentation.

• Prioritize high-impact implementations: Safety and EMI suppression standards (IEC 60384-14-1/2) warrant immediate review for product lines serving global markets or regulated environments. Transition plans should address both design and manufacturing documentation updates.

• Adopt updated measurement protocols: For organizations working with optoelectronic and semiconductor devices, integrate revised test methods and formulas into internal qualification procedures to ensure harmonized output with global standards.

• Assess supply chain impact: Supply chain and procurement teams should be briefed on the modifications in marking, conformance validation, and design assessment to avoid costly non-conformances or shipment delays for affected parts.

• Compliance timeline: Organizations should begin implementing changes as soon as possible, particularly for new product development. For legacy products, coordinate transition with planned obsolescence or update cycles to avoid compliance gaps.

• Key resources:

  • Access full standards directly via iTeh Standards for detailed requirements
  • Reference companion documents (IEC 60384-1, IEC 60384-14:2023, etc.) for holistic compliance

Conclusion: Key Takeaways from September 2025

September 2025 saw the publication of several forward-looking Electronics standards that will shape compliance and performance benchmarks for years ahead. From comprehensive updates to thyristor and diode testing methods, to reformulated EMI suppression capacitor specifications and advanced optoelectronics measurement protocols, this month’s standards address both legacy and emerging pain points across the global industry.

For professionals in the sector:

• Staying current is non-negotiable: These standards provide the latest consensus on reliability, safety, and interoperability—key differentiators in competitive electronics markets.
• Implementation should be proactive: The sooner organizations map these changes into specifications, product roadmaps, and supplier relationships, the smoother and more cost-effective their compliance journeys will be.

Harness the full potential of these standards by exploring them in detail and sharing insights across your teams. Stay tuned for Part 2, where we continue our assessment of the month's additional standards. For in-depth access and support, visit iTeh Standards, your partner in global standards intelligence.