1N5400K

Overview

The Diotec Semiconductor 1N5400K is a standard recovery rectifier diode housed in a DO-15 through-hole package. It features a maximum average forward current of 3 A and a peak repetitive reverse voltage of 50 V. The device exhibits a forward voltage drop of less than 1.1 V at 3 A and a leakage current below 5 µA. It supports a peak forward surge current of 100 A for half-sine waves at 60 Hz. Operating temperatures range from -50°C to +175°C, with a typical reverse recovery time of 1500 ns.

Feature Summary

• Standard recovery rectification suitable for general-purpose power applications
• High thermal stability with an extended junction temperature range up to 175°C
• Robust surge handling capability for transient protection scenarios

Applications

• General purpose rectification in power supplies
• Inverter circuits
• Converter topologies
• Freewheeling diode implementations

Procurement Notes

Verify the specific manufacturer source when ordering, as multiple vendors produce this component. Confirm RoHS compliance status and packaging type (e.g., Ammo Pack) against your assembly requirements. Ensure the supplier provides valid traceability documentation. Cross-reference the datasheet revision date to confirm technical specifications match your design constraints before finalizing procurement.

Selection Notes

Select this component for low-frequency AC-to-DC conversion where moderate surge currents are expected. The 50 V rating limits its use to low-voltage secondary side rectification. Consider the 1.1 V forward voltage drop for efficiency calculations in high-current paths. Verify that the 1500 ns reverse recovery time meets the switching frequency requirements of the target circuit without causing excessive losses.

Part Context

This part belongs to the 1N54xx series of silicon rectifiers, widely used in industrial and commercial electronics. The 'K' suffix typically denotes specific packaging or tape-and-reel configurations depending on the distributor. It serves as a direct replacement for legacy 1N5400 components in existing designs requiring 3 A continuous current handling.

Replacement Considerations

Direct substitutes include Vishay 1N5400/71-E3 and generic 1N5400 parts from other manufacturers. Verify pinout compatibility and ensure equivalent thermal resistance ratings. Check if alternative suppliers offer AEC-Q101 qualified versions if automotive reliability is required.