1N4937GP-M3/73

Overview

The Vishay 1N4937GP-M3/73 is a glass passivated junction fast switching plastic rectifier. It features a Superectifier structure for high reliability and operates with a maximum average forward rectified current of 1.0 A at 75 °C ambient temperature. The device supports a maximum repetitive peak reverse voltage of 600 V and withstands a peak forward surge current of 30 A. 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 reverse recovery time of 200 ns. The component utilizes a DO-41 (DO-204AL) molded epoxy package over a glass body.

Feature Summary

• Superectifier structure ensures high reliability condition
• Cavity-free glass passivated junction construction
• Fast switching capability designed for high efficiency applications

Applications

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

Procurement Notes

Verify the specific ordering suffix to confirm packaging details, as the M3 designation indicates RoHS compliance while the /73 code specifies Ammo pack delivery. Confirm that the component meets JESD 201 class 1A whisker test requirements if applicable to your design constraints. Ensure the selected variant aligns with the required lead length specifications for your assembly process.

Selection Notes

Select this component when a single configuration standard recovery rectifier is required for general-purpose fast switching applications. The 600 V rating provides sufficient margin for higher voltage AC line rectification compared to lower voltage variants within the same series. Verify thermal management requirements against the specified operating junction temperature range of -65 to +175 °C.

Part Context

This part belongs to the 1N4933GP through 1N4937GP family of fast switching plastic rectifiers manufactured by Vishay General Semiconductor. The GP suffix denotes the Superectifier structure, distinguishing it from standard plastic rectifiers. These components are designed for through-hole mounting and offer consistent performance across the series with varying reverse voltage ratings.

Replacement Considerations

Direct replacements within the Vishay lineup include the 1N4937-E3/73 or 1N4937GP-E3/73, which share identical electrical parameters and mechanical dimensions. Cross-manufacturer equivalents must be verified against the 1.0 A current rating, 600 V reverse voltage, and 200 ns recovery time specifications.