78604/8JC

Overview

The Murata Power Solutions Inc. 78604/8JC is a general-purpose pulse transformer featuring a 2:1 turns ratio and an inductance of 850µH. It operates within a voltage-time product (Et) of 15Vµs and supports an isolation voltage of 1kVrms. Designed for surface mount installation, the component measures 9.52mm in length, 9.00mm in width, and has a maximum height of 6.35mm. The unit functions reliably across a temperature range of 0°C to +70°C.

Feature Summary

• Provides galvanic isolation with a 1kVrms rating between primary and secondary windings.
• Features a compact surface mount footprint suitable for automated PCB assembly processes.
• Delivers a fixed 2:1 turns ratio for signal or power pulse transmission applications.

Applications

• Isolated gate drive circuits
• Pulse transformer coupling stages
• Digital signal isolation interfaces

Procurement Notes

Verify the specific suffix designation when ordering, as packaging formats vary by manufacturer code. Confirm RoHS3 compliance status through official documentation prior to integration. Ensure the selected variant matches the required Et value and physical dimensions for the target PCB layout design.

Selection Notes

Select this component based on its 850µH inductance and 15Vµs voltage-time capability. Verify that the 2:1 turns ratio aligns with circuit requirements. Check that the surface mount package dimensions fit the designated board space and thermal constraints.

Part Context

This part belongs to the Murata 786 series of pulse transformers. The series offers various inductance values and turns ratios optimized for different isolation and signal integrity needs. The 78604/8JC specifically addresses applications requiring moderate inductance and standard isolation levels.

Replacement Considerations

The 78604/8JC-R is a parameter-equivalent alternative available in reel packaging. Verify mechanical compatibility and electrical specifications before substituting.