EN 129202:1994/A1:1995

Overview

EN 129202:1994/A1:1995 is a European standard issued by the CLC (European Committee for Electrotechnical Standardization) that defines the blank detail specification for wirewound inductors featuring ceramic or ferrite cores. This standard focuses on inductors manufactured with an assessment level P, ensuring consistent quality and performance criteria. The document also includes a corrigendum released in April 1997 to clarify and amend specific aspects of the original standard.

Wirewound inductors are key components in electronic circuits, providing inductance for filtering, tuning, and energy storage functions. By complying with this standard, manufacturers and users can guarantee reliable electrical performance and mechanical integrity in electromechanical components. The specification supports harmonization within the industry, offering a shared framework for product assessment and quality validation.

Key Topics

• Wirewound Inductors: Detailed specifications for inductors using wire winding technology wrapped around ceramic or ferrite cores.
• Core Materials: Focus on two primary core types-ceramic and ferrite-known for their magnetic properties and suitability in different electrical applications.
• Assessment Level P: Defines the quality and performance assessment level required for these inductors, serving as a benchmark for manufacturing and inspection.
• Quality Assurance: Guidelines to ensure inductors meet safety, durability, and electrical performance standards.
• Corrigendum and Amendments: Updates incorporated in 1997 and published in 2002 to maintain technical accuracy and relevance of the original standard.
• Standard Identification: Correspondence with SIST EN 129202:2002/A1:2002, the Slovene national equivalent, indicating widespread European adoption.

Applications

Wirewound inductors compliant with EN 129202:1994/A1:1995 are commonly utilized in various electronic and electromechanical systems, including:

• Power Supplies: Filtering and smoothing current in converters and regulators to enhance efficiency and stability.
• Radio Frequency Circuits: Tuning and impedance matching elements in radios and communication devices.
• Industrial Electronics: Noise suppression and electromagnetic interference (EMI) reduction in automation and control systems.
• Consumer Electronics: Integral components in audio equipment, televisions, and computers to manage signal integrity.
• Automotive Electronics: Robust inductors designed for vehicle control units and sensor circuits requiring high reliability.

By adhering to this standard, manufacturers ensure these inductors meet stringent quality and performance standards critical to these sectors.

Related Standards

• IEC Standards on Inductors and Passive Components: Complementary guidelines for passive electronic components providing broader technical context.
• EN 60068 Series: Environmental testing standards that often apply to wirewound inductors for assurance of durability under temperature, humidity, and mechanical stress.
• EN 50317: Specification relating to EMI suppression components that often incorporate inductors similar to those described in EN 129202.
• National Adoptions (e.g., SIST EN 129202:2002/A1:2002): Local versions of the standard ensure regional compliance and regulatory adherence across Europe.

Keywords: wirewound inductors, ceramic core inductors, ferrite core inductors, assessment level P, EN 129202, electromechanical components standard, inductors quality specification, CLC standards, passive electronic components, European inductors standard, electronic component standardization