1N4946GPHE3/73

Overview

The Vishay 1N4946GPHE3/73 is a glass-passivated junction fast switching plastic rectifier belonging to the Superectifier series. It provides a maximum repetitive peak reverse voltage of 600 V and supports an average forward rectified current of 1.0 A. The device features a low maximum instantaneous forward voltage of 1.3 V at rated current and a typical junction capacitance of 15 pF. It utilizes a DO-41 (DO-204AL) axial through-hole package with matte tin-plated leads.

Feature Summary

• Cavity-free glass-passivated junction for high reliability
• Superectifier structure designed for fast switching efficiency
• Low leakage current characteristics across operating temperatures
• High forward surge capability for transient protection

Applications

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

Procurement Notes

Verify component authenticity by checking manufacturer markings against datasheet specifications. Confirm RoHS compliance status via the E3 suffix designation. Validate that the DO-41 package dimensions match design requirements. Ensure ordering codes correspond to the specific voltage rating required for the circuit application.

Selection Notes

Select this component when a 600 V reverse blocking capability is required alongside 1 A continuous conduction. The 150 ns reverse recovery time makes it suitable for higher frequency switching compared to standard rectifiers. Verify thermal management capabilities within the specified -65 °C to +175 °C junction temperature range for the target environment.

Part Context

This part belongs to the 1N494xGP family, which includes variants with different reverse voltage ratings such as 200 V, 400 V, 800 V, and 1000 V. All members share identical physical packaging and general electrical characteristics except for their specific breakdown voltage limits. The GP designation indicates the glass passivation process used in manufacturing.

Replacement Considerations

Direct substitutes include other 1N4946 equivalents from different manufacturers offering identical 600 V ratings and DO-41 packages. Cross-reference must confirm matching reverse recovery times and forward voltage drops to ensure circuit compatibility.