1N4937GPE-E3/54

Overview

The Vishay 1N4937GPE-E3/54 is a glass passivated junction fast switching plastic rectifier in the DO-41 (DO-204AL) package. It features a maximum average forward rectified current of 1.0 A and a maximum repetitive peak reverse voltage of 600 V. The device exhibits a maximum instantaneous forward voltage of 1.2 V at 1.0 A, with a typical junction capacitance of 15 pF at 4.0 V and 1 MHz. Reverse recovery time is specified at 200 ns under conditions of 1.0 A forward current and 30 V reverse voltage. Maximum DC blocking voltage is 600 V, and peak forward surge current capability is 30 A for an 8.3 ms single half sine-wave.

Feature Summary

• Glass passivated junction structure providing high reliability and cavity-free construction
• Fast switching characteristics designed for high efficiency applications
• Low leakage current performance across operating temperatures
• High forward surge current capability

Applications

• Fast switching rectification in power supplies
• Inverter circuits
• Converter applications
• Freewheeling diodes for consumer electronics
• Telecommunication equipment

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and E3 suffix adherence to JESD 201 class 1A whisker test requirements. Validate that the DO-41 package dimensions match design specifications. Ensure ordering quantities align with the base quantity of 5500 units for reel packaging. Check for any specific environmental certifications required by the target application region.

Selection Notes

Select this component when a 600 V reverse voltage rating is required alongside 1 A continuous forward current. The 200 ns reverse recovery time makes it suitable for general-purpose fast switching rather than ultra-high frequency operations. Consider the DO-41 through-hole package for standard PCB mounting. Evaluate thermal resistance constraints if ambient temperatures exceed standard ratings. Compare against lower voltage variants within the same series if system requirements allow reduced blocking voltage.

Part Context

This part belongs to the Vishay SUPERECTIFIER® 1N493xGP series, which includes variants ranging from 50 V to 600 V reverse voltage. All members share identical electrical characteristics except for the maximum repetitive peak reverse voltage rating. The series utilizes a consistent glass passivation process and DO-41 package format. This specific model represents the highest voltage option in the standard lineup.

Replacement Considerations

Direct substitutes include other 1N4937 variants such as 1N4937-E3/54 or 1N4937-E3/73 from Vishay. Cross-manufacturer equivalents must be verified for matching 600 V reverse voltage, 1 A forward current, and 200 ns reverse recovery time. Package compatibility requires checking DO-41 pin spacing and lead dimensions.