1N4936G-K

Overview

The 1N4936G-K is a fast recovery rectifier manufactured by Taiwan Semiconductor Corporation. It features a glass-passivated junction and utilizes the Superectifier structure for high reliability. The component is housed in a DO-41 axial leaded package designed for through-hole mounting. Key electrical specifications include a maximum repetitive peak reverse voltage of 400 V and an average forward rectified current of 1 A at 75°C. The device exhibits a maximum non-repetitive peak forward surge current of 30 A. Electrical characteristics specify a maximum DC reverse leakage current of 5 uA at rated voltage and a typical reverse recovery time of 150 ns.

Feature Summary

• Glass-passivated junction provides mechanical strength and protection against external physical stresses
• Superectifier structure ensures high reliability under demanding operating conditions
• Fast switching capability supports high efficiency in power conversion applications

Applications

• High frequency rectification circuits
• Free-wheeling diodes in inductive load switching
• Polarity protection in electronic systems

Procurement Notes

Verify the manufacturer designation as Taiwan Semiconductor Corporation to distinguish from other producers using similar part numbers. Confirm the suffix K corresponds to specific packaging or tape-and-reel configurations if required. Check RoHS compliance status and environmental declarations against current datasheets. Ensure the DO-41 package dimensions match the target PCB layout requirements before finalizing procurement.

Selection Notes

Select this component when a 400 V blocking capability and 1 A continuous current rating are required. The 150 ns reverse recovery time makes it suitable for higher frequency applications compared to standard general-purpose rectifiers. Consider the thermal derating curves for operation above 75°C ambient temperature. Verify that the through-hole DO-41 package fits the assembly constraints.

Part Context

This component belongs to the 1N493x series of fast recovery rectifiers. The series offers various voltage ratings ranging from 50 V to 600 V while maintaining a consistent 1 A current handling capability. These devices are widely used in consumer electronics and industrial equipment requiring reliable rectification with faster switching speeds than standard silicon diodes.

Replacement Considerations

Cross-reference with other manufacturers' 1N4936 equivalents such as those from Vishay, onsemi, or Microsemi. Ensure substitute parts maintain the same DO-41 package outline and pinout compatibility. Verify that replacement components meet the same 400 V reverse voltage and 1 A forward current specifications.