1N5819H

Overview

The Taiwan Semiconductor Corporation 1N5819H is a silicon Schottky barrier rectifier designed for low voltage, high frequency applications. It features a maximum average forward rectified current of 1A and a peak repetitive reverse voltage of 40V. The device utilizes a DO-201AD axial leaded package to facilitate through-hole mounting. Key electrical characteristics include a low forward voltage drop and negligible switching losses, making it suitable for power conversion circuits requiring high efficiency.

Feature Summary

• Schottky barrier construction provides extremely fast switching speeds with minimal recovery time
• Low forward voltage drop reduces conduction losses and improves overall system efficiency
• High surge current capability ensures robustness against transient overload conditions
• Encapsulated in a DO-201AD package suitable for standard through-hole PCB assembly

Applications

• Switch mode power supplies (SMPS)
• Free wheeling diodes in inductive load circuits
• Polarity protection for DC power inputs
• DC to DC converters operating at high frequencies

Procurement Notes

Verify the specific suffix 'H' against the manufacturer's official datasheet to confirm exact mechanical dimensions and marking codes. Ensure the procurement channel provides original manufacturer documentation to validate authenticity. Cross-reference the RoHS compliance status with the latest production batch information before finalizing orders.

Selection Notes

Select this component when designing circuits that require low forward voltage drop and fast recovery characteristics at moderate current levels. The DO-201AD package is appropriate for applications needing higher thermal mass compared to smaller surface mount packages. Evaluate the thermal management requirements based on the specified junction-to-ambient thermal resistance for your specific enclosure design.

Part Context

This part belongs to the widely recognized 1N58xx series of Schottky rectifiers, which are industry-standard components for general-purpose power rectification. The 1N5819H variant specifically denotes the 40V/1A rating within this family. It serves as a direct replacement for legacy designs utilizing generic 1N5819 specifications while offering potentially improved manufacturing consistency from Taiwan Semiconductor.

Replacement Considerations

Direct pin-compatible substitutes include the 1N5819 from other manufacturers such as Vishay or Diotec, provided they meet the same 40V and 1A ratings. Verify that alternative sources offer equivalent forward voltage and reverse leakage specifications to maintain circuit performance integrity.