HER1005G

Diode Arrays Overview

The HER1005G is a high-efficiency rectifier diode manufactured by Taiwan Semiconductor Corporation. It features a single silicon junction with glass passivation, housed in a DO-204AL (DO-41) through-hole package. The device supports a maximum repetitive peak reverse voltage of 400V and an average forward rectified current of 1A. Key electrical characteristics include a low forward voltage drop and a fast recovery time of 75ns. It operates within a junction temperature range of -55°C to +150°C.

Diode Arrays Feature Summary

• Glass-passivated chip junction for enhanced reliability and environmental stability
• High current capability combined with low forward voltage drop
• Fast recovery time suitable for high-frequency switching applications
• Compliant with WEEE 2002/96/EC directives and halogen-free standards

Diode Arrays Applications

• General-purpose high-efficiency rectification in power supplies
• Freewheeling diodes in DC-DC converters
• Reverse polarity protection circuits
• Automotive electronics requiring AEC-Q101 qualification

Diode Arrays Procurement Notes

Verify the specific packing code prefix when ordering. Prefix 'H' indicates AEC-Q101 automotive qualification and meets stricter JESD 201 whisker test requirements. Suffix 'G' denotes green compound packaging that is halogen-free. Confirm terminal plating specifications match JESD22-B102 solderability standards before integration into final assemblies.

Diode Arrays Selection Notes

Select this component for applications requiring robust reverse blocking capabilities up to 400V with moderate current handling at 1A. The DO-204AL package offers reliable through-hole mounting for standard PCB layouts. Consider the AEC-Q101 qualified variant if the design targets automotive environments or requires higher reliability under thermal stress conditions compared to standard industrial grades.

Diode Arrays Part Context

This part belongs to the HER series of glass passivated high-efficient rectifiers from Taiwan Semiconductor. The series is designed to replace older standard recovery diodes in modern power conversion topologies. The DO-204AL form factor ensures compatibility with legacy board designs while providing improved efficiency metrics over conventional silicon rectifiers.

Diode Arrays Replacement Considerations

Direct substitutes include other 400V 1A fast recovery diodes in DO-41 packages such as the UF4007 or FR107, though recovery times and forward voltages may differ. Verify pinout compatibility and thermal dissipation requirements when swapping between different manufacturers' offerings.