VS-40HF140

Single Diodes Overview

The VS-40HF140 is a silicon rectifier diode from the Vishay 40HF(R) series, rated for 1400 V repetitive reverse voltage and 40 A average forward current. It utilizes a DO-203AB (DO-5) chassis stud mount package with the case connected to the anode. The device features a maximum non-repetitive peak forward surge current of 595 A at 60 Hz. Operating junction temperature ranges from -65 °C to 190 °C.

Single Diodes Feature Summary

• High surge current capability suitable for demanding power applications
• Chassis stud mount design with case connected to anode for efficient thermal management
• Silicon construction optimized for high-temperature operation up to 190 °C

Single Diodes Applications

• Battery chargers
• Power converters
• General purpose power supplies
• Machine tool controls

Single Diodes Procurement Notes

Verify the specific suffix against official Vishay documentation to confirm exact electrical tolerances and packaging variations. Confirm RoHS compliance status and lead-free specifications directly with the manufacturer or authorized distributors prior to procurement. Ensure mounting hardware compatibility with the DO-203AB chassis stud interface.

Single Diodes Selection Notes

Select this component for high-voltage rectification requiring robust thermal dissipation via chassis mounting. The 1400 V rating provides safety margin for industrial AC lines. Verify that the 40 A continuous current rating meets load requirements and that the 190 °C junction temperature limit aligns with the system's cooling infrastructure.

Single Diodes Part Context

This part belongs to the Vishay 40HF(R) series of standard recovery rectifiers. The series offers various voltage ratings up to 1600 V in the same DO-203AB package family. These diodes are designed for general-purpose rectification in industrial and commercial power conversion equipment where reliability under high surge conditions is critical.

Single Diodes Replacement Considerations

Check datasheets for equivalent parts within the 40HF series, such as VS-40HF160 or VS-40HF120, if voltage ratings differ. Ensure any substitute maintains the DO-203AB mechanical footprint and anode-connected case configuration for direct interchangeability.