SS34FSH

Single Diodes Overview

The SS34FSH is a Schottky barrier rectifier manufactured by Taiwan Semiconductor Corporation. It features a peak repetitive reverse voltage (Vrrm) of 40 V and an average forward rectified current (If) of 3 A. The device utilizes the SOD-128 surface-mount package with two pins. Key electrical parameters include a maximum forward voltage (Vf) of 500 mV at 3 A, a peak non-repetitive forward surge current (Ifsm) of 80 A, and a maximum reverse leakage current (Ir) of 500 µA. The operating junction temperature range spans from -55°C to +125°C.

Single Diodes Feature Summary

• Utilizes metal-semiconductor contact principle for low forward voltage drop
• Designed for high-efficiency switching applications due to fast recovery characteristics
• Constructed in a compact surface-mount package for automated assembly

Single Diodes Applications

• Secondary rectification in DC/DC converters
• Free-wheeling diodes in inductive load circuits
• Polarity protection in power supply inputs

Single Diodes Procurement Notes

Verify the specific suffix FSH against the manufacturer's official datasheet to confirm pinout orientation and marking codes. Ensure the component matches the required thermal management specifications for the intended enclosure. Cross-reference the lot date code with storage conditions to maintain moisture sensitivity level integrity prior to soldering.

Single Diodes Selection Notes

Select this component when a 40 V rating and 3 A continuous current capacity are required in a small form factor. Compare the 500 mV forward voltage specification against system efficiency targets. Evaluate the thermal resistance of the SOD-128 package relative to the expected ambient temperature and current loading conditions.

Single Diodes Part Context

This part belongs to the series of Schottky rectifiers designed for general-purpose power conversion. It serves as a solid-state alternative to standard PN-junction diodes where speed and efficiency are prioritized. The Taiwan Semiconductor manufacturing process ensures consistent performance across the production batch for reliable circuit operation.

Single Diodes Replacement Considerations

Direct substitutes must match the 40 V reverse voltage, 3 A current rating, and SOD-128 package dimensions. Verify that alternative Schottky diodes exhibit comparable forward voltage and leakage current characteristics to maintain circuit performance.