STMicroelectronics 1N5819RL Schottky Rectifier, 40V, 1A, DO-41

The STMicroelectronics 1N5819RL is a high-performance Schottky rectifier designed for efficiency and reliability in demanding electronic circuits. This device features an extremely low forward voltage drop of just 550mV, which translates to minimal conduction losses and superior power efficiency. Its negligible switching losses and extremely fast switching characteristics make it an ideal choice for high-frequency applications where speed and thermal performance are critical.

Engineered with robustness in mind, this rectifier offers a specified avalanche capability, handling repetitive peak avalanche power up to 1200W. It supports a forward RMS current of 10A and can withstand a high forward surge current of 25A, ensuring reliable operation under transient conditions. Its construction in the standard DO-41 (DO-204AL) through-hole package allows for easy and secure mounting on printed circuit boards (PCBs).

Key Features & Applications

This rectifier is exceptionally well-suited for a variety of modern power management and safety applications. Its primary uses include:

• High-frequency DC-to-DC converters
• Low-voltage, high-frequency inverters
• Free-wheeling diode functions
• Polarity protection circuits
• Small battery chargers

With a maximum operating temperature of 150°C, it is built to perform reliably in environments with significant thermal stress. The combination of low losses, fast switching, and high surge current tolerance makes the 1N5819RL a versatile and dependable component for engineers designing efficient power supplies and conversion systems.