SB550/54

Single Diodes Overview

The SB550-E3/54 is a Schottky barrier rectifier manufactured by Vishay General Semiconductor - Diodes Division. It features a 50 V maximum repetitive reverse voltage and a 5 A average forward current rating in the DO-201AD axial package. The device exhibits a low forward voltage drop of 650 mV at 5 A and a maximum non-repetitive peak forward surge current of 220 A. Operating junction temperatures range from -65 °C to +150 °C, with a maximum reverse leakage current of 500 µA at rated voltage.

Single Diodes Feature Summary

• Guardring structure provides overvoltage protection
• Extremely fast switching characteristics for high frequency operation
• Low forward voltage drop reduces power loss
• High forward surge capability handles transient loads

Single Diodes Applications

• High frequency rectification circuits
• Free-wheeling diode applications
• Polarity protection circuits
• DC-DC converters

Single Diodes Procurement Notes

Verify the specific ordering suffix /54 corresponds to the Tape & Reel packaging format when sourcing components. Confirm RoHS compliance status aligns with project requirements, noting that the E3 suffix indicates lead-free construction. Ensure the DO-201AD through-hole package matches the intended PCB footprint design before finalizing procurement orders.

Single Diodes Selection Notes

Select this component for designs requiring robust surge handling and low conduction losses in medium-current applications. The axial DO-201AD package facilitates easy through-hole mounting. Consider the 50 V voltage rating to ensure adequate headroom against reverse voltage spikes in the target circuit topology.

Single Diodes Part Context

This part belongs to the SB520 through SB560 series of Vishay Schottky Barrier Rectifiers. The series covers voltage ratings from 20 V to 60 V with a consistent 5 A current capacity. These devices are designed for general-purpose rectification where speed and efficiency are prioritized over high voltage blocking capabilities.

Single Diodes Replacement Considerations

Cross-reference with other SB550 variants from different manufacturers ensuring identical DO-201AD package dimensions and electrical parameters. Verify pinout compatibility and thermal management requirements before substituting.