1N4935G

Overview

The onsemi 1N4935G is an axial-lead, glass-passivated fast recovery rectifier designed for high-efficiency switching applications. It features a maximum average forward current of 1.0 A and a peak repetitive reverse voltage of 200 V. The device exhibits a typical reverse recovery time of 150 ns, enabling operation at frequencies up to 250 kHz. Electrical characteristics include a maximum instantaneous forward voltage of 1.2 V at 150°C and a non-repetitive peak surge current rating of 30 A. The component operates within a junction temperature range of -65°C to +150°C.

Feature Summary

• Glass passivation provides low leakage current and robust protection against mechanical stress and moisture.
• Fast recovery characteristics with a typical 150 ns reverse recovery time support high-frequency switching efficiency.
• Epoxy molding compound ensures corrosion resistance and compliance with UL requirements for flame retardancy.

Applications

• DC power supplies
• Inverters and converters
• Ultrasonic systems
• Choppers
• Free wheeling diodes

Procurement Notes

Verify the specific ordering suffix to confirm packaging configuration. The 'G' suffix indicates lead-free construction, while 'RL' denotes tape and reel shipping. Confirm that the required quantity matches the standard bag or reel unit counts specified in the manufacturer's documentation before finalizing procurement.

Selection Notes

Select this component when a 200 V blocking capability and 1 A continuous current are required in a through-hole package. Ensure the application frequency does not exceed the limits supported by the 150 ns recovery time. Verify thermal management requirements against the junction-to-ambient thermal resistance specifications provided in the datasheet.

Part Context

This part belongs to the 1N493x series of fast recovery rectifiers manufactured by onsemi. The series includes variants with different voltage ratings ranging from 50 V to 600 V. All members share the same DO-41 axial lead package and general electrical architecture, differing primarily in their peak repetitive reverse voltage capabilities.

Replacement Considerations

Compatible substitutes include other manufacturers' 1N4935 equivalents. Cross-reference must verify identical 200 V reverse voltage, 1 A forward current, and DO-41 package dimensions to ensure mechanical fit and electrical performance parity.