RB705DFHT146

Overview

The RB705DFHT146 is a Schottky barrier diode manufactured by ROHM Semiconductor, designed for high-speed switching applications. It features a single configuration housed in an SOT-346-3 surface-mount package. The device supports a maximum repetitive reverse voltage of 40V and provides an average forward current rating of 0.2A. Key electrical parameters include a typical forward voltage of 450mV at 100mA and a maximum reverse leakage current of 10µA at 40V. The component is qualified to the AEC-Q101 automotive standard and operates within a junction temperature range up to +150°C.

Feature Summary

• Automotive-grade reliability certified under AEC-Q101 standards
• Low forward voltage drop for improved power efficiency
• Ultra-fast switching characteristics suitable for high-frequency circuits

Applications

• Automotive DC-DC converter output rectification
• High-speed switching power supply freewheeling diodes
• Reverse polarity protection circuits in vehicle electronics

Procurement Notes

Verify the specific suffix HT146 against the official datasheet to confirm the tape-and-reel packaging format and quantity per reel. Confirm RoHS compliance status and ensure the component meets the required AEC-Q101 qualification level for your specific application environment before finalizing procurement.

Selection Notes

Select this component when a compact SOT-346 footprint is required for automotive or industrial power management designs. Ensure the 40V reverse voltage rating exceeds the peak circuit voltage with adequate margin. Verify that the 0.2A current capacity aligns with the load requirements and thermal dissipation capabilities of the PCB layout.

Part Context

This part belongs to the RB70x series of Schottky barrier diodes from ROHM Semiconductor. These devices are engineered for low loss and fast recovery, making them ideal for modern compact power supplies. The SOT-346 package allows for automated surface-mount assembly, supporting high-volume manufacturing processes in consumer and automotive electronics.

Replacement Considerations

Consult the official ROHM replacement guide for verified cross-reference part numbers. Ensure any substitute maintains the same SOT-346 pinout, 40V rating, and AEC-Q101 qualification if automotive use is intended.