1N5408KR

Overview

The Diotec Semiconductor 1N5408KR is a standard recovery rectifier diode housed in the DO-201 axial through-hole package. It provides a maximum repetitive peak reverse voltage of 1000 V and supports an average forward current of 3 A at 25°C ambient temperature. The device features a maximum forward voltage drop of 1.1 V at 3 A and a leakage current below 5 µA at rated voltage. Electrical characteristics include a typical reverse recovery time of 1500 ns and a junction capacitance of 20 pF. Thermal resistance values are specified as 38 K/W from junction to ambient and 13 K/W from junction to leads. The component operates within a temperature range of -50°C to +175°C for both storage and junction conditions.

Feature Summary

• Standard silicon rectification with low forward voltage drop
• High thermal stability across extended operating temperatures
• Robust surge current handling capability

Applications

• General purpose rectification in power supplies
• Bridge rectifier circuits
• Polarity protection applications

Procurement Notes

Verify the specific ordering suffix against official Diotec documentation to confirm packaging details, as variations exist between reel, cut tape, and other formats. Confirm RoHS compliance status directly with the manufacturer or authorized distributors prior to procurement. Ensure that the selected variant matches the required lead configuration and mechanical dimensions for the intended PCB layout.

Selection Notes

Select this component when high reverse voltage blocking and moderate current capacity are required in a standard axial package. Consider the thermal resistance parameters for heat dissipation requirements in enclosed environments. Evaluate the reverse recovery time suitability for the specific switching frequency of the application circuit to ensure efficient operation without excessive switching losses.

Part Context

This part belongs to the 1N5400K through 1N5408K series of standard recovery rectifiers produced by Diotec Semiconductor. The series shares common electrical characteristics including a 3 A forward current rating and a 175°C maximum junction temperature. The 'KR' suffix typically denotes specific packaging or tape-and-reel configurations distinct from bulk versions like the standard 1N5408.

Replacement Considerations

Cross-reference with other manufacturers offering the 1N5408 specification, such as onsemi or SMC Diode Solutions, ensuring identical voltage, current, and package compatibility.