1N4937GPHE3/54

Overview

The Vishay 1N4937GP-E3/54 is a glass passivated junction fast switching plastic rectifier designed for high reliability. It features a Superectifier structure with a cavity-free junction and operates in the DO-41 (DO-204AL) package. The device supports a maximum repetitive peak reverse voltage of 600 V and an average forward rectified current of 1.0 A at 75 °C ambient temperature. Key electrical characteristics include a maximum instantaneous forward voltage of 1.2 V, a maximum DC reverse current of 5.0 μA at 25 °C, and a typical reverse recovery time of 200 ns. It withstands a peak forward surge current of 30 A and operates within a junction temperature range of -65 to +175 °C.

Feature Summary

• Glass passivated junction with a cavity-free construction for enhanced reliability
• Fast switching capability optimized for high efficiency applications
• Low leakage current and low forward voltage drop characteristics
• 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 by checking the manufacturer's marking code against official documentation. Confirm RoHS compliance status via the E3 suffix designation. Ensure the ordering suffix matches the required delivery mode, such as reel or cut tape. Validate that the specific batch meets the JESD 201 class 1A whisker test requirements. Cross-reference the document number 88509 for the most current technical specifications.

Selection Notes

Select this component for designs requiring fast recovery times and high reliability in axial leaded packages. The 600 V rating makes it suitable for general-purpose rectification where higher voltage margins are needed compared to lower-rated variants in the series. Consider the thermal resistance and derating curves when designing for high ambient temperatures. Verify compatibility with existing PCB footprints for the DO-41 package.

Part Context

This part belongs to the 1N493xGP series of fast switching plastic rectifiers from Vishay General Semiconductor. The GP designation indicates a glass passivated junction, while the E3 suffix confirms RoHS compliance and matte tin plating. The /54 suffix specifies the packaging configuration as a 13-inch diameter paper tape and reel with a base quantity of 5500 units. This series is explicitly marked as not recommended for new designs.

Replacement Considerations

Direct substitutes within the same Vishay family include 1N4933GP through 1N4936GP, which share identical electrical ratings except for their reverse voltage capabilities. Other manufacturers may offer equivalents under the standard 1N4937 designation, but verification of the glass passivation and Superectifier structure is necessary to ensure equivalent performance.