ZA9671-BED

Overview

The Coilcraft ZA9671-BED is a surface-mount flyback transformer designed for DC/DC converters. It features 1500 Vrms isolation between primary and secondary windings and operates at frequencies up to 300 kHz. The component is optimized for use with Texas Instruments' LM25184 chipset, providing a specific output configuration suitable for no-opto flyback applications. It complies with RoHS standards and is halogen-free, ensuring environmental safety for electronic assemblies.

Feature Summary

• Optimized for TI LM25184 flyback converter designs
• Provides 1500 Vrms isolation between primary and secondary circuits
• Surface mount construction for automated assembly
• RoHS compliant and halogen-free manufacturing

Applications

• Flyback converters utilizing TI LM25184 controllers
• No-opto isolated power supply designs
• DC/DC conversion modules requiring high isolation
• Surface mount electronics manufacturing

Procurement Notes

Verify the suffix 'BED' against the manufacturer's official documentation to confirm the specific winding configuration and output version. Ensure compatibility with the intended PCB footprint and reflow soldering profile. Cross-reference the part number with the latest datasheet to confirm current status and availability before procurement.

Selection Notes

Select this component specifically for designs based on the TI LM25184 controller. Confirm that the required isolation voltage meets or exceeds 1500 Vrms. Verify that the operating frequency aligns with the 300 kHz specification. Ensure the application requires the specific output configuration provided by this variant rather than other versions in the ZA967x series.

Part Context

This transformer belongs to the ZA967x family of no-opto flyback transformers manufactured by Coilcraft. These components are engineered to simplify power supply design by integrating necessary magnetic properties for specific controller architectures. The series offers multiple output versions tailored to different voltage requirements while maintaining consistent isolation and mounting characteristics.

Replacement Considerations

Other variants within the ZA967x series (ZA9670-BE through ZA9673-BE) share similar physical and electrical characteristics but offer different output configurations. Verify that any substitute matches the specific winding ratio and isolation requirements of the ZA9671-BED.

FAQ

What is the isolation voltage rating?

The ZA9671-BED provides 1500 Vrms isolation between the primary and secondary windings.

Which controller is this transformer optimized for?

It is optimized for use with Texas Instruments' LM25184 flyback converter.