1N6638US/TR

Overview

The Microchip Technology 1N6638US/TR is a small signal switching diode designed for surface mount applications. It features a single configuration within a D-5D-2 package. The device supports a peak reverse voltage of 125 V and handles a maximum surge current of 2.5 A. The forward current rating is 200 mA, with a forward voltage of 1.1 V at that current level. Reverse leakage current is specified at 500 nA. The component exhibits a fast recovery time of 4.5 ns and a maximum diode capacitance of 2.5 pF. It operates reliably within a temperature range from -65 C to +175 C.

Feature Summary

• Hermetically sealed glass construction suitable for high-reliability environments
• Fast switching capability with minimal reverse recovery time
• Extended thermal stability for extreme operating conditions

Applications

• High-reliability computer logic circuits
• Military aerospace signal processing systems
• Harsh environment switching applications

Procurement Notes

Verify the specific suffix designation against official Microchip documentation to confirm exact manufacturing lot qualifications and testing standards. Ensure the procurement channel provides valid traceability records required for defense or aerospace contracts. Confirm RoHS compliance status as indicated in official datasheets, noting potential exemptions for military-grade components. Validate packaging specifications match project requirements before finalizing orders.

Selection Notes

Select this component when hermetic sealing and extended temperature operation are mandatory. Compare electrical parameters such as reverse leakage and recovery time against circuit requirements. Consider the D-5D-2 package dimensions for board layout constraints. Evaluate cost implications against lower-grade commercial alternatives if environmental exposure is not severe.

Part Context

This part belongs to the 1N6638 series of small signal switching diodes manufactured by Microchip Technology. It represents the surface mount variant of the traditional through-hole 1N6638. The series is widely recognized for its robustness in critical electronic systems requiring consistent performance under stress.

Replacement Considerations

Direct substitutes include JAN1N6638US and JANS1N6638US. Verify pinout compatibility and package tolerance matches before substitution.