RB495DFHT146

Overview

The RB495DFHT146 is a Schottky barrier diode manufactured by ROHM Semiconductor, designed for general rectification applications. It features a single configuration within an SOT-346 (SMD3) surface-mount package. The device operates with a maximum repetitive peak reverse voltage of 25V and supports a forward current of 400mA. Constructed using silicon epitaxial planar technology, it offers low reverse leakage current and high reliability. The component is rated for a maximum operating temperature of +125°C.

Feature Summary

• Utilizes small mold type SMD3 packaging for compact surface-mount integration
• Employs silicon epitaxial planar construction for enhanced structural integrity
• Engineered to provide low reverse leakage current characteristics
• Designed for high reliability in standard rectification circuits

Applications

• General rectification tasks in electronic circuits
• Low voltage power supply output stages
• Freewheeling diode applications in switching regulators

Procurement Notes

Verify the current lifecycle status before procurement, as this component may be marked as Not Recommended for New Designs (NRND). Confirm availability through authorized distributors, as stock levels fluctuate. Ensure the ordering suffix matches the required tape-and-reel quantity specifications. Cross-reference the manufacturer datasheet for any recent updates to mechanical dimensions or electrical ratings prior to finalizing orders.

Selection Notes

Select this component when a low-voltage, high-speed rectification solution is required in a minimal footprint. The SOT-346 package suits space-constrained designs needing reliable Schottky performance. Consider the 25V rating and 400mA current capacity against circuit demands. Evaluate thermal management requirements given the +125°C junction temperature limit. Compare against alternative Schottky diodes if specific reverse leakage or forward voltage drop thresholds differ from standard values.

Part Context

This part belongs to the RB495 series of Schottky barrier diodes from ROHM Semiconductor. The series is characterized by its use of silicon epitaxial planar technology and small SMD3 packaging. These diodes are intended for general-purpose rectification where low forward voltage and fast switching are beneficial. The RB495DFHT146 variant specifically denotes the 25V/400mA specification within this family.

Replacement Considerations

Check for direct substitutes within the RB495 series that match the 25V and 400mA ratings. Verify pin compatibility and package dimensions (SOT-346) for existing PCB layouts. Consult ROHM documentation for recommended replacement parts if this item is obsolete.