1N4948GP-M3/73

Overview

The Vishay 1N4948GP-M3/73 is a glass-passivated junction fast switching plastic rectifier belonging to the Superectifier series. It features a DO-41 (DO-204AL) axial package with matte tin-plated leads. The device supports a maximum repetitive peak reverse voltage of 1000 V and a maximum average forward rectified current of 1.0 A. Key electrical parameters 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 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 construction
• Fast switching capability optimized for high efficiency applications
• Low leakage current characteristics

Applications

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

Procurement Notes

Verify that the specific ordering suffix matches the required packaging format, as variations exist between tape-and-reel and ammo pack configurations. Confirm RoHS compliance status through official documentation, noting that E3 suffixes typically indicate compliance. Ensure the selected variant aligns with the intended thermal management requirements given the specified operating temperature limits.

Selection Notes

Select this component when a high-voltage rating of 1000 V is required alongside standard 1 A continuous current handling. The DO-41 package facilitates through-hole mounting on printed circuit boards. Consider the 175 °C maximum junction temperature for high-temperature environments. Validate thermal resistance parameters against the specific ambient conditions and lead length constraints defined in the datasheet.

Part Context

This part belongs to the Vishay 1N494xGP family of glass-passivated fast switching rectifiers. The series includes variants with different reverse voltage ratings, such as 200 V, 400 V, 600 V, and 800 V. All members share similar physical dimensions and electrical characteristics regarding forward voltage and surge current capabilities, differing primarily in their blocking voltage specifications.

Replacement Considerations

Direct substitutes within the same Vishay Superectifier series include 1N4942GP, 1N4944GP, 1N4946GP, and 1N4947GP, provided the lower voltage ratings are acceptable for the application. Cross-manufacturer replacements must match the 1000 V reverse voltage, 1.0 A forward current, and DO-41 package dimensions.