AS1G-HF

Overview

The AS1G-HF is a standard recovery rectifier manufactured by Comchip Technology, designed for general-purpose applications. It features a single diode configuration housed in an SMA (DO-214AC) surface-mount package. The device supports a maximum repetitive peak reverse voltage of 400 V and an average forward rectified current of 1 A. Key electrical characteristics include a forward voltage of 1 V at rated current and a maximum surge current capability of 30 A. The component operates within a junction temperature range of -65 °C to +175 °C.

Feature Summary

• Standard recovery rectifier technology suitable for general-purpose power conversion
• High thermal stability with a maximum operating junction temperature of 175 °C
• Surface-mount construction in the compact SMA/DO-214AC package

Applications

• General-purpose rectification in AC/DC power supplies
• Freewheeling diodes in low-frequency switching circuits
• Reverse polarity protection in DC input lines

Procurement Notes

Verify the specific datasheet revision and RoHS compliance status directly with Comchip Technology or authorized distributors before integration. Confirm that the SMA package dimensions align with your PCB footprint requirements. Ensure that the 400V reverse voltage rating exceeds the peak inverse voltage present in your target circuit application under all operating conditions.

Selection Notes

Select this component when a standard recovery time is sufficient for the switching frequency, offering a cost-effective alternative to ultra-fast variants. The 1A current rating and 400V blocking voltage define its operational limits. Consider the SMA package size relative to available board space and thermal dissipation needs compared to through-hole alternatives like DO-41.

Part Context

This part belongs to Comchip Technology's line of surface-mount rectifiers, utilizing the industry-standard SMA (DO-214AC) footprint. It serves as a modern replacement for traditional through-hole diodes in compact electronics designs. The product family emphasizes reliability and compliance with environmental directives such as RoHS.

FAQ

What is the recovery type of the AS1G-HF?

It is a standard recovery rectifier, distinct from ultra-fast or super-fast recovery types.

Does the AS1G-HF meet automotive qualification standards?

Based on available documentation, it is classified as a general-purpose rectifier without explicit AEC-Q101 certification mentioned.