ACFRA105-HF

Overview

The ACFRA105-HF is a fast recovery rectifier diode manufactured by Comchip Technology. It features a single-element silicon construction housed in an SMA (DO-214AC) surface-mount package. The device is rated for a repetitive peak reverse voltage of 600V and a continuous forward current of 1A. Key electrical characteristics include a maximum forward voltage drop of 1.3V at 1A and a typical reverse leakage current of 5µA at 600V. The component supports a high junction temperature operation up to 175°C and offers a fast switching speed with a typical reverse recovery time of 50ns.

Feature Summary

• Fast recovery performance optimized for high-efficiency switching applications
• Surface-mount SMA (DO-214AC) package design for automated assembly
• High thermal stability supporting junction temperatures up to 175°C
• Halogen-free construction compliant with RoHS directives

Applications

• High-frequency DC/DC converter circuits
• Free-wheeling rectification in power supplies
• Reverse polarity protection in electronic systems
• General-purpose fast switching rectification

Procurement Notes

Verify the specific suffix designation, as the provided model includes an 'HF' indicator which typically denotes halogen-free compliance. Confirm the manufacturer's current production status, as availability may vary. Ensure that the ordering documentation explicitly references the ACFRA105-HF part number to distinguish it from non-halogen or different voltage variants within the same series. Cross-reference datasheets for exact thermal and electrical limits before integration.

Selection Notes

Select this component when a surface-mount fast recovery diode is required for 600V blocking applications. The SMA package is suitable for space-constrained PCB designs. Compare the 50ns reverse recovery time against circuit switching frequencies to ensure minimal switching losses. Verify that the 1A current rating meets the peak load requirements of the target application without exceeding thermal limits.

Part Context

This component belongs to Comchip Technology's ACFRA series of fast recovery rectifiers. The series utilizes silicon planar technology to provide reliable performance in various rectification roles. The ACFRA105 variant specifically addresses the 600V voltage class, complementing other ratings such as 50V, 100V, and 800V options within the broader product family.

Replacement Considerations

Compatible substitutes include the FR105 in DO-214AC packages from manufacturers like Micro Commercial Components or Rectron. When replacing, verify that the alternative part matches the 600V VRRM, 1A IF, and SMA footprint specifications to ensure mechanical and electrical compatibility.