AS1J-HF

Overview

The AS1J-HF is a single super fast recovery rectifier manufactured by Comchip Technology. It features a 600 V reverse voltage rating and supports a continuous forward current of 1 A. The device utilizes an SMA (DO-214AC) surface-mount package. Key electrical parameters include a maximum forward voltage of 1 V, a peak surge current capacity of 30 A, and a low reverse leakage current of 5 uA. The component operates within a temperature range of -55 C to +150 C and exhibits a fast recovery time of 35 ns.

Feature Summary

• Super fast recovery characteristics for high-frequency switching applications
• Low forward voltage drop to minimize conduction losses
• High thermal stability with extended operating temperature range

Applications

• High-frequency power supply circuits
• DC-DC converter output rectification
• Free-wheeling diodes in inductive load protection

Procurement Notes

Verify the specific datasheet version when ordering, as manufacturing revisions may occur. Confirm that the SMA (DO-214AC) footprint matches your PCB design constraints. Ensure compliance with RoHS directives if required by your assembly specifications. Cross-reference part numbers such as CSFA103-G if alternative sourcing is considered.

Selection Notes

Select this component when a 600 V blocking capability is required alongside rapid switching speeds. The 1 A current rating suits moderate power applications. Compare the 35 ns recovery time against standard rectifiers to ensure compatibility with your circuit's frequency requirements. Verify thermal management needs given the 150 C maximum junction temperature limit.

Part Context

This component belongs to Comchip Technology's line of surface-mount rectifiers designed for compact electronic assemblies. It serves as a specialized diode for modern power electronics where space efficiency and switching speed are critical. The SMA package allows for automated surface-mount technology placement.

Replacement Considerations

Publicly documented equivalent part numbers include CSFA103-G. Verify pinout compatibility and electrical parameter tolerances before substituting.