1N5809

Overview

The Microchip Technology 1N5809 is a single fast recovery rectifier diode designed for through-hole mounting in the B-Package-2 configuration. It features a maximum repetitive peak reverse voltage of 100 V and an average forward current rating of 6 A. The device exhibits a typical forward voltage drop of 875 mV at rated current, with a low reverse leakage current of 5 uA. Key electrical characteristics include a maximum surge current capacity of 125 A and a rapid reverse recovery time of 30 ns. The component operates reliably within a junction temperature range of -65°C to +175°C.

Feature Summary

• Fast recovery performance with a 30 ns reverse recovery time suitable for high-frequency switching applications
• High thermal stability supporting operation up to a maximum junction temperature of +175°C
• Robust surge current handling capability rated at 125 A for transient protection

Applications

• High-reliability power supply circuits requiring fast switching characteristics
• Industrial control systems utilizing through-hole rectification
• Military-grade electronic assemblies demanding hermetic sealing standards

Procurement Notes

Verify that the specific procurement order matches the required package style, as the 1N5809 designation may refer to different physical packages depending on the manufacturer's suffix codes. Confirm RoHS compliance status if environmental regulations apply to the final assembly. Ensure the supplier provides official datasheets confirming the 6 A current rating and 100 V reverse voltage specifications for the exact part variant received.

Selection Notes

Select this component when a through-hole fast recovery rectifier with a 6 A average current rating is required. The 100 V reverse voltage rating defines the maximum blocking capability for the circuit design. Consider the 30 ns recovery time for efficiency in high-frequency applications. Verify that the B-Package-2 footprint aligns with the printed circuit board layout constraints.

Part Context

This component belongs to the Microchip Technology rectifier series, specifically engineered for general-purpose and high-reliability applications. The 1N5809 variant distinguishes itself through its combination of high current handling and fast recovery speed in a standard through-hole package. It serves as a critical discrete semiconductor solution for power conversion stages where reliability and thermal performance are paramount.

Replacement Considerations

Cross-reference with other Microchip fast recovery rectifiers in the same voltage and current class. Verify pinout compatibility and thermal resistance values before substituting with equivalent parts from other manufacturers.