1N4936G

Overview

The 1N4936G is a fast recovery rectifier manufactured by Taiwan Semiconductor Corporation. It features a single-phase, half-wave configuration with a maximum average forward rectified current of 1 A and a peak repetitive reverse voltage of 400 V. The device utilizes a DO-41 axial leaded package for through-hole mounting. Key electrical characteristics include a maximum non-repetitive peak forward surge current of 30 A, a typical reverse leakage current of 5 uA at rated voltage, and a maximum reverse recovery time of 200 ns. The component operates within a junction temperature range of -55 °C to +175 °C.

Feature Summary

• Fast switching capability designed for high efficiency applications
• Glass-passivated junction structure ensuring high reliability and cavity-free construction
• Low forward voltage drop and low leakage current characteristics
• High forward surge current capability suitable for demanding circuit conditions

Applications

• General-purpose rectification in power supply circuits
• High-frequency switching applications requiring fast recovery
• DC-DC converter input or output stages
• Inverter and chopper circuits

Procurement Notes

Verify the manufacturer marking on the component body to confirm it originates from Taiwan Semiconductor Corporation, as the 1N4936 designation is widely used across multiple vendors. Ensure the specific suffix 'G' aligns with your Bill of Materials requirements, noting that packaging and compliance attributes may vary between suppliers even for identical part numbers. Cross-reference the datasheet revision date to ensure compatibility with current environmental directives.

Selection Notes

Select this component when a standard 1 A fast recovery diode with a 400 V reverse voltage rating is required for through-hole assembly. The DO-41 package provides robust mechanical stability for automated placement. Consider the 200 ns reverse recovery time against application frequency needs. Verify thermal management requirements, as the device supports a maximum junction temperature of 175 °C, allowing for operation in higher ambient temperature environments compared to standard silicon diodes.

Part Context

This component belongs to the 1N493x series of fast recovery rectifiers, which are standardized under JEDEC DO-41 specifications. The series offers various voltage ratings ranging from 50 V to 600 V while maintaining a consistent 1 A current handling capability. The 1N4936 variant specifically targets the 400 V market segment, providing a balance between blocking voltage and switching speed for general industrial and consumer electronics applications.

Replacement Considerations

Direct substitutes include other manufacturers' 1N4936 parts such as Vishay's 1N4936GP or onsemi's 1N4936. Ensure pinout compatibility and verify that the replacement meets the same DO-41 package dimensions and electrical limits for reverse voltage and surge current.