1N4947GP-M3/73

Overview

The 1N4947GP-M3/73 is a glass-passivated junction fast switching plastic rectifier manufactured by Vishay General Semiconductor - Diodes Division. It features a Superectifier structure for high reliability and cavity-free construction. The device operates with a maximum average forward rectified current of 1.0 A at 55 °C and withstands a maximum repetitive peak reverse voltage of 800 V. Key electrical characteristics include a maximum instantaneous forward voltage of 1.3 V, a maximum DC reverse current of 1.0 μA at rated voltage, and a typical reverse recovery time of 250 ns. It supports a peak forward surge current of 25 A and functions within an operating junction temperature range of -65 to +175 °C.

Feature Summary

• Superectifier structure ensures high reliability under demanding conditions
• Cavity-free glass-passivated junction provides robust protection
• Fast switching capability enables high efficiency in power circuits
• Low leakage current minimizes power loss during operation

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 against official documentation to confirm compliance details and packaging type. Ensure that the component meets the required environmental standards for the intended application. Cross-reference the datasheet revision date to validate technical specifications. Confirm thermal resistance parameters match system cooling requirements before finalizing procurement decisions.

Selection Notes

Select this component for applications requiring high-speed rectification with low leakage characteristics. The 800 V reverse voltage rating suits medium-voltage power conversion systems. Verify that the DO-41 package dimensions align with the PCB layout constraints. Consider the thermal derating curve when designing for ambient temperatures exceeding 55 °C to maintain the 1.0 A current rating safely.

Part Context

This part belongs to the 1N494xGP series of glass passivated junction fast switching plastic rectifiers. The series includes variants with different reverse voltage ratings ranging from 200 V to 1000 V. All members share the same Superectifier structure and DO-41 package form factor, offering consistent performance characteristics across the product line for general-purpose high-efficiency rectification tasks.

Replacement Considerations

Direct substitutes within the same series include 1N4946GP and 1N4948GP, provided their respective reverse voltage ratings (600 V and 1000 V) are compatible with the circuit design. Ensure any replacement maintains the 1.0 A forward current capacity and similar reverse recovery time specifications.