RB558WMFHTL

Overview

The RB558WMFHTL is a Schottky Barrier Diode manufactured by ROHM Semiconductor. It features a dual common cathode configuration housed in an SOT-416FL surface-mount package. The device is constructed using silicon technology and supports a maximum repetitive reverse voltage of 30V. It provides an average forward rectified current of 100mA with a peak forward surge current capability of 500mA. The component exhibits a low forward voltage drop of 450mV at the rated current and maintains a reverse leakage current of 500nA. It operates within a junction temperature range up to +150°C.

Feature Summary

• Dual common cathode configuration for efficient circuit design
• Low forward voltage drop characteristics
• High thermal stability with elevated maximum junction temperature rating

Applications

• General purpose rectification in consumer electronics
• Power supply input protection circuits
• Freewheeling diodes in low-current switching applications

Procurement Notes

Verify the specific suffix 'TL' against the manufacturer's official documentation to confirm tape and reel packaging specifications. Ensure the part number matches the exact RoHS compliance status required for your assembly process. Cross-reference the ordering code with ROHM Semiconductor's current product availability lists to confirm active manufacturing status before finalizing procurement plans.

Selection Notes

Select this component when a compact dual-diode solution is required for low-voltage, low-current applications. The SOT-416FL package offers space-saving benefits for dense PCB layouts. Consider the 30V reverse voltage rating and 100mA current capacity to ensure adequate headroom for the target circuit conditions. Evaluate the thermal management requirements given the small form factor and junction temperature limits.

Part Context

This component belongs to ROHM's Schottky Barrier Diode series, designed for high-efficiency switching and rectification. The RB558WMFH variant specifically integrates two diodes in a single package, reducing board space compared to discrete components. It is part of the broader semiconductor portfolio focused on miniaturization and energy efficiency for portable electronic devices.

Replacement Considerations

Consult ROHM Semiconductor's official replacement guide for verified substitutes. Ensure any alternative part maintains identical pinout, package dimensions (SOT-416FL), and electrical ratings including 30V Vrrm and 100mA Io.