1N4246US

Overview

The Microchip Technology 1N4246US is a high-speed switching diode housed in a DO-35 glass axial leaded package. It features a maximum repetitive peak reverse voltage of 75 V and a DC forward current rating of 200 mA. The device exhibits a low forward voltage drop of 1.1 V at 100 mA and a fast reverse recovery time of 4 ns. These electrical characteristics make it suitable for applications requiring rapid switching speeds and reliable performance under standard operating conditions.

Feature Summary

• High-speed switching capability with fast reverse recovery time
• Glass axial sealed construction for environmental stability
• Low forward voltage drop for efficient power handling
• Rated for high repetitive peak reverse voltage

Applications

• General purpose rectification in electronic circuits
• Clamping and protection circuits
• High-speed switching applications
• Signal demodulation

Procurement Notes

Verify the exact part number against official Microchip datasheets to ensure compatibility with your circuit design. Confirm that the DO-35 package style meets your board layout requirements. Check for any specific ordering suffixes that may indicate tape and reel packaging versus bulk quantities if automated assembly is required. Ensure compliance with RoHS directives if applicable to your manufacturing process.

Selection Notes

Select this component when a small-signal silicon switching diode with a 75 V reverse voltage rating is needed. Consider the 200 mA forward current limit and 4 ns recovery time for speed-sensitive designs. Evaluate thermal management needs based on the expected average forward current and ambient temperature conditions to ensure long-term reliability within specified junction temperature limits.

Part Context

This component belongs to the standard small-signal switching diode family produced by Microchip Technology. It shares similar electrical characteristics with other industry-standard equivalents but is distinguished by its specific manufacturing specifications and quality standards set by the manufacturer. The DO-35 package is a common form factor for through-hole mounting in various consumer and industrial electronics.

Replacement Considerations

Equivalent parts include the 1N914, which offers similar switching characteristics but with a lower reverse voltage rating of 100 V compared to the 75 V of the 1N4246 series variants. Verify pinout compatibility and package dimensions before substitution. Ensure that the replacement diode meets or exceeds the required reverse voltage and forward current ratings for the specific application.