St MicroElectronics 1N5819 Schottky Rectifier 40V 1A DO-41

St MicroElectronics 1N5819 Schottky Rectifier is an axial leaded, low drop power Schottky rectifier rated at 40V and 1A, housed in a DO-41 through-hole package. Its design features exceptionally small conduction losses and negligible switching losses, supporting efficient operation in power-sensitive circuits.

Overview

Engineered for superior efficiency, this rectifier offers extremely fast switching performance and a low forward voltage drop. Its robust avalanche capability provides reliable operation under transient conditions, while a forward surge current rating of 25A offers a buffer against current spikes. The device is suited to high-frequency applications where energy conservation and thermal management are important considerations.

Key Features

• Axial leaded, low drop power Schottky construction
• Robust avalanche capability for reliable transient operation
• Extremely fast switching performance
• Exceptionally small conduction and negligible switching losses
• Single diode configuration in a DO-41 (DO-204AL) through-hole package

Applications

This Schottky rectifier is typically used in switch mode power supplies (SMPS), high-frequency DC to DC converters, and inverters. It is also suited to freewheeling diode functions, reverse polarity protection circuits, and compact battery chargers, with use across industrial, portable device, and consumer electronics sectors.

Specifications

• Peak repetitive reverse voltage: 40V
• Average forward current: 1A
• Forward surge current: 25A (at tp 10ms)
• Maximum forward voltage: 550mV (typical low drop)
• Forward voltage: 850mV at 3A (maximum)
• Maximum junction temperature: 150°C
• Dimensions (approx.): 43 mm (Height) x 33 mm (Width) x 15 mm (Depth)
• Weight: Approximately 0.3 grams

Choose the St MicroElectronics 1N5819 Schottky Rectifier for power conversion and protection circuits where a 40V, 1A Schottky device in a DO-41 package is required.