1N5402K

Overview

The 1N5402K is a silicon rectifier diode manufactured by Diotec Semiconductor, designed for general-purpose power supply applications. It features a maximum average forward rectified current of 3A and a repetitive peak reverse voltage rating of 200V. The device utilizes a DO-204AC (DO-15) axial through-hole package with an isolated cathode end. Key electrical characteristics include a maximum non-repetitive peak forward surge current of 200A and a low leakage current of 5µA at the rated reverse voltage. The component supports a maximum junction temperature of 175°C and operates within a temperature range of -55°C to +175°C.

Feature Summary

• High forward surge capability for handling transient current loads
• Low leakage current ensuring efficient performance in reverse bias conditions
• Robust thermal stability with a high maximum junction temperature rating

Applications

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

Procurement Notes

Verify the specific manufacturer suffix 'K' against official Diotec Semiconductor documentation to confirm package and marking details. Ensure compatibility with DO-204AC footprint requirements during PCB layout. Cross-reference datasheet parameters such as reverse recovery time and forward voltage drop with circuit design specifications before finalizing procurement decisions.

Selection Notes

Select this component when a 3A current rating and 200V blocking voltage are required for standard rectification tasks. The DO-15 package offers suitable mechanical robustness for through-hole assembly processes. Consider the 175°C junction temperature limit for high-temperature environments. Verify that the 200A surge current capability meets the peak inrush requirements of the target application circuit.

Part Context

This part belongs to the 1N54xx series of general-purpose plastic rectifiers. It shares common characteristics with other members of the family, such as the 1N5401 and 1N5403, differing primarily in the reverse voltage rating. The series is widely used in low-to-medium power electronic equipment requiring reliable AC-to-DC conversion or DC isolation.

Replacement Considerations

Compatible substitutes include Vishay 1N5402-E3/66 and New Jersey Semiconductor 1N5402. Verify that replacement parts match the 3A average current, 200V reverse voltage, and DO-201AD/DO-204AC package dimensions.