ACGRKM4004-HF

Overview

The ACGRKM4004-HF is a standard recovery rectifier diode manufactured by Comchip Technology. It features a maximum DC reverse voltage (Vr) of 400 V and an average forward rectified current (Io) of 1 A. The device is housed in a DO-214AC (SMA) surface-mount package. Key electrical characteristics include a maximum forward voltage (Vf) of 1.1 V at 1 A, a reverse leakage current of 5 µA at 400 V, and a reverse recovery time (trr) of 2.5 µs. It operates within a junction temperature range of -55°C to 150°C and holds AEC-Q101 automotive qualification.

Feature Summary

• Automotive-grade reliability certified under the AEC-Q101 standard for robust performance in demanding environments.
• Surface-mount construction in a compact DO-214AC (SMA) package designed for automated PCB assembly processes.
• Standard recovery speed with controlled reverse recovery time suitable for general-purpose rectification applications.

Applications

• Automotive electronics systems requiring AEC-Q101 qualified components
• General-purpose rectification in surface-mount circuit designs
• DC power supply input stages

Procurement Notes

Verify the specific ordering suffix and packaging configuration when sourcing, as availability may vary between tape-and-reel, cut tape, or Digi-Reel formats. Confirm that the delivered units match the exact part number ACGRKM4004-HF to ensure correct voltage and current ratings. Check for recent product change notifications regarding manufacturing site or material updates to maintain design consistency.

Selection Notes

Select this component when a 400 V reverse voltage rating and 1 A continuous current capacity are required in a small surface-mount footprint. The AEC-Q101 certification makes it appropriate for automotive applications where higher reliability standards are mandated compared to commercial-grade parts. Consider the 2.5 µs reverse recovery time for switching frequency limitations in the target circuit design.

Part Context

This device belongs to Comchip Technology's ACGRA series of surface-mount silicon rectifiers. The series offers various voltage ratings from 50 V to 1000 V while maintaining consistent 1 A current handling capabilities across different packages. The ACGRKM4004-HF specifically addresses the 400 V requirement within this standardized lineup, providing a drop-in solution for designs needing moderate voltage blocking in SMA packages.

Replacement Considerations

Direct pin-compatible substitutes must be verified against the DO-214AC outline dimensions. Ensure any replacement maintains the 400 V Vr, 1 A Io, and AEC-Q101 qualification if automotive compliance is required. Cross-reference reverse recovery times and forward voltage drops to confirm thermal and timing compatibility in the existing circuit.