1N4946GP-M3/73

Overview

The Vishay General Semiconductor - Diodes Division 1N4946GP-M3/73 is a glass-passivated junction fast switching plastic rectifier belonging to the Superectifier series. It features a cavity-free construction and matte tin-plated leads for solderability. The device provides a maximum repetitive peak reverse voltage of 600 V, a maximum average forward rectified current of 1.0 A, and a peak forward surge current capability of 25 A. Electrical characteristics include a maximum instantaneous forward voltage of 1.3 V at 1.0 A, a maximum DC reverse current of 1.0 μA at rated blocking voltage, and a typical junction capacitance of 15 pF. The component operates within a temperature range of -65 °C to +175 °C.

Feature Summary

• Superectifier structure designed for high reliability under demanding conditions
• Cavity-free glass-passivated junction ensures robust protection against environmental stress
• Fast switching performance optimized for high efficiency in power conversion applications
• Low leakage current and high forward surge capability support stable operation

Applications

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

Procurement Notes

Verify that the ordering suffix matches the required packaging format, as the M3 designation indicates RoHS compliance while the trailing number specifies the shipping container type. Confirm the specific package code aligns with manufacturing requirements. Ensure technical parameters are validated for the intended application environment before procurement.

Selection Notes

Select this component when a 600 V reverse voltage rating and 1.0 A continuous current capacity are required. The DO-41 axial package suits through-hole mounting configurations. Consider the 150 ns reverse recovery time for high-frequency switching needs. Evaluate thermal resistance limits to ensure adequate heat dissipation in the target circuit design.

Part Context

This part belongs to the 1N494xGP family of fast switching rectifiers from Vishay. The series includes variants with different voltage ratings such as 200 V, 400 V, 800 V, and 1000 V. All members share the same Superectifier technology and DO-41 mechanical outline, differing primarily in their breakdown voltage specifications.

Replacement Considerations

Compatible substitutes within the same Vishay lineup include the 1N4944GP (400 V) and 1N4947GP (800 V). Verify that alternative components meet the 600 V minimum reverse voltage requirement and maintain equivalent current handling capabilities.