B5819WS

Overview

The B5819WS is a silicon Schottky barrier diode manufactured by Shenzhen Slkormicro Semicon Co., Ltd. It features a single configuration in an SOD-323 surface-mount package. Key electrical parameters include a maximum repetitive peak reverse voltage of 40 V and an average rectified output current of 1 A. The device exhibits a low forward voltage drop, with typical values around 900 mV at rated current, and supports a peak forward surge current of 10 A. Operating temperatures range from -65°C to +125°C junction temperature.

Feature Summary

• Utilizes Schottky barrier technology for extremely fast switching speeds and negligible reverse recovery time.
• Designed for low voltage applications with very small conduction losses due to low forward voltage drop.
• Constructed with silicon material for reliable performance in high-frequency inverters and polarity protection circuits.

Applications

• Free wheeling applications in inductive load circuits
• Polarity protection for DC power inputs
• Low voltage, high frequency inverters
• Small battery chargers

Procurement Notes

Verify the manufacturer designation on the component marking, as the B5819WS part number is widely used by multiple semiconductor vendors including MCC and HTSEMI. Ensure the specific datasheet aligns with your design requirements regarding thermal resistance and forward voltage characteristics. Confirm package tolerance specifications for SOD-323 footprint compatibility during procurement.

Selection Notes

Select this component for designs requiring efficient rectification in low-voltage, high-frequency environments. The SOD-323 package offers space-saving integration compared to axial packages like DO-41. Consider the 40V reverse voltage rating when designing for systems with potential voltage spikes exceeding standard 5V or 12V rails. Evaluate thermal management needs based on the 1A continuous current capability.

Part Context

The B5819WS belongs to the family of 1A, 40V Schottky rectifiers, serving as a surface-mount alternative to through-hole devices like the 1N5819. While Shenzhen Slkormicro Semicon Co., Ltd. lists this part in its portfolio alongside other discrete power devices, the specific technical documentation for this exact manufacturer's version should be consulted for precise parameter variations compared to industry-standard equivalents.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Designers typically consider equivalent 1A 40V Schottky diodes in SOD-323 packages, but specific cross-references require verification against official manufacturer substitution guides.