1N4937E-E3/53

Overview

The 1N4937E-E3/53 is a fast switching plastic rectifier manufactured by Vishay General Semiconductor - Diodes Division. It features a single circuit configuration in a DO-41 (DO-204AL) package with matte tin plated leads. The device supports a maximum repetitive peak reverse voltage of 600 V and a maximum 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 rated blocking voltage, and a typical junction capacitance of 12 pF. The component operates within a junction and storage temperature range of -50 to +150 °C.

Feature Summary

• Fast switching capability designed for high efficiency applications
• Low forward voltage drop and low leakage current characteristics
• High forward surge capability with void-free molded plastic construction

Applications

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

Procurement Notes

Verify the specific suffix '53' against official documentation, as standard commercial grades typically utilize suffixes like '54'. Confirm RoHS compliance status and material categorization details directly from the manufacturer's ordering information section. Ensure the procurement matches the exact JEDEC package code and delivery mode specified in the datasheet to avoid discrepancies in lead plating or packaging format.

Selection Notes

Select this component for applications requiring fast recovery times and high surge current handling in a through-hole package. 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 values when designing heat dissipation strategies for dense PCB layouts.

Part Context

This part belongs to the 1N4933 through 1N4937 series of fast switching plastic rectifiers. The series shares identical mechanical and thermal characteristics, differing primarily in their maximum repetitive peak reverse voltage ratings which range from 50 V to 600 V. The 1N4937 represents the highest voltage variant in this specific family line.

Replacement Considerations

Cross-reference with other manufacturers offering DO-41 packaged fast recovery rectifiers with equivalent 600 V and 1 A ratings. Verify that any substitute meets the same reverse recovery time and forward voltage specifications to ensure circuit compatibility.