HER1004G

Diode Arrays Overview

The HER1004G is a high-efficiency recovery rectifier manufactured by Taiwan Semiconductor. It features a glass passivated chip junction and is housed in the DO-204AL (DO-41) package. The device is rated for a maximum repetitive peak reverse voltage of 400V and an average forward rectified current of 1A. It exhibits a fast recovery time of 50ns, making it suitable for high-frequency applications. The component complies with RoHS directives and is halogen-free.

Diode Arrays Feature Summary

• Glass passivated chip junction for enhanced reliability
• High efficiency with low forward voltage drop
• Fast recovery characteristics for high-frequency operation
• Halogen-free construction compliant with environmental standards

Diode Arrays Applications

• General purpose rectification in power supplies
• Freewheeling diodes in inductive load circuits
• High frequency switching applications

Diode Arrays Procurement Notes

Verify the specific ordering suffix to confirm packaging details and material composition, such as halogen-free status or automotive qualification. Confirm the manufacturing lifecycle status, as availability may vary based on production updates. Ensure the selected variant matches the required lead time and reel specifications for your assembly process.

Diode Arrays Selection Notes

Select this component when a 1A current rating and 400V blocking voltage are required in a standard axial leaded package. The 50ns recovery time distinguishes it from standard rectifiers, offering better performance in high-speed switching environments. Consider thermal management requirements based on the expected forward current and ambient operating conditions.

Diode Arrays Part Context

This part belongs to the HER series of high-efficient recovery rectifiers from Taiwan Semiconductor. The series utilizes glass passivation technology to improve stability and surge current capability compared to standard epoxy-passivated devices. The DO-41 package provides a robust mechanical solution for through-hole mounting in various electronic assemblies.

Diode Arrays Replacement Considerations

Direct replacements include other 1A, 400V fast recovery diodes in the DO-41 package, such as the FR104 or UF4004. Verify pin compatibility and electrical parameters before substitution. Ensure the alternative device meets the same recovery time and reverse leakage current specifications.