1N4937-AP

Overview

The MCC 1N4937-AP is a single-element silicon fast recovery rectifier diode housed in the DO-41 (DO-204AL) plastic package. It features a maximum repetitive peak reverse voltage of 600 V and an average forward current rating of 1.0 A at 55°C ambient temperature. The device exhibits a maximum instantaneous forward voltage of 1.3 V at 1.0 A, with a maximum DC reverse current of 5.0 μA at 25°C. Key electrical parameters include a peak forward surge current capability of 30 A for an 8.3 ms half-sine pulse and a maximum reverse recovery time of 200 ns.

Feature Summary

• Fast switching performance suitable for high-efficiency applications
• Low leakage current characteristics
• High forward surge current capability

Applications

• Fast switching rectification in power supplies
• Inverter circuits
• Converter topologies
• Freewheeling diodes for consumer electronics

Procurement Notes

Verify that the ordering suffix -AP corresponds to Ammo Box packaging containing 5,000 pieces per box as defined in the MCC datasheet. Confirm compliance with RoHS directives and UL 94 V-0 flammability ratings for the epoxy material. Ensure procurement channels are authorized distributors to guarantee genuine parts and full traceability, avoiding unauthorized sources that lack warranty coverage.

Selection Notes

Select this component when a 600 V blocking voltage and 1 A continuous current rating are required within a through-hole DO-41 footprint. Consider the 200 ns reverse recovery time for general-purpose fast switching rather than ultra-high-frequency operations. Evaluate thermal derating requirements based on the specified junction-to-lead thermal resistance and operating temperature range up to 150°C.

Part Context

This part belongs to the 1N4933 through 1N4937 series of 1 Amp Fast Recovery Rectifiers manufactured by Micro Commercial Components. The series covers voltage ratings from 50 V to 600 V, sharing identical physical dimensions and electrical characteristics except for the reverse voltage breakdown limits. The -AP suffix specifically denotes the Ammo Box packaging format provided by MCC.

Replacement Considerations

Cross-reference with Vishay 1N4937 or Fairchild 1N4937GPT26R for equivalent electrical specifications in the DO-41 package. Verify that substitute components match the 600 V reverse voltage, 1 A forward current, and 200 ns reverse recovery time requirements before implementation.