1N4936G

Overview

The onsemi 1N4936G is an axial-lead glass passivated fast recovery rectifier designed for high-efficiency switching applications. It features a peak repetitive reverse voltage of 400 V and supports an average rectified forward current of 1.0 A. The device exhibits a typical reverse recovery time ranging from 150 ns to 200 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.

Feature Summary

• Glass passivation provides enhanced stability and low reverse leakage current
• Fast recovery design enables high efficiency in high-frequency circuits
• Epoxy molding offers corrosion resistance and solderability

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm packaging configuration. The 'G' suffix indicates a plastic bag shipment format containing 1,000 units per bag. Confirm that the component meets Pb-Free requirements if applicable to your assembly process. Ensure the selected variant aligns with the required mechanical case outline and polarity marking standards.

Selection Notes

Select this component when a 400 V blocking capability and 1 A continuous current rating are required for fast recovery applications. Consider the thermal resistance of 65 °C/W for junction-to-ambient calculations under standard printed circuit board mounting conditions. Verify that the operating temperature range of -65°C to +150°C suits the environmental constraints of the target system.

Part Context

This part belongs to the 1N493x series of axial-lead fast recovery rectifiers manufactured by onsemi. The series includes variants with different voltage ratings, such as the 1N4933 (50 V) through 1N4937 (600 V). The 1N4936 specifically targets the 400 V segment of this family, sharing common mechanical dimensions and electrical testing methodologies with its siblings.

Replacement Considerations

Cross-reference with other manufacturers offering DO-41 packaged fast recovery rectifiers rated at 400 V and 1 A. Verify that substitute parts match the reverse recovery time specifications and forward voltage characteristics to ensure circuit compatibility.