STMicroelectronics 1N5817 Schottky Rectifier 20V 1A DO-41

The STMicroelectronics 1N5817 Schottky Rectifier offers a 20 V reverse voltage rating and 1 A average forward current in a compact through-hole DO-41 package.

Overview

The 1N5817 is a Schottky rectifier engineered for efficiency and fast switching. Its extremely low forward voltage drop results in minimal conduction losses and improved power conversion efficiency compared with standard diodes. The device also features negligible switching losses and an extremely fast switching speed, which makes it suitable for high-frequency applications.

Designed with robust avalanche capability, the rectifier can handle transient voltage spikes, supporting system reliability under demanding conditions.

Key Features

• Maximum forward voltage of 450 mV for low conduction losses
• Negligible switching losses and extremely fast switching speed
• Robust avalanche capability for transient voltage spikes
• Specified for a forward RMS current of 10 A
• Repetitive peak avalanche power rating of 1200 W
• Single diode configuration with a 150°C maximum operating temperature
• Compact 2-pin, through-hole design in the industry-standard DO-41 (DO-204AL) package

Applications

This rectifier is well suited to high-frequency DC-to-DC converters, where its fast switching and low losses are critical for performance. It is also suitable for low-voltage, high-frequency inverters, freewheeling diodes, polarity protection circuits, and efficient small battery chargers.

Package and Integration

The through-hole DO-41 (DO-204AL) package allows straightforward integration into a wide range of circuit board layouts. Its compact form factor supports flexible component placement in power management and safety-critical designs.