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Product Detailed Parameters
- Description：DIODE ARRAY SCHOTT 40V 40A LPDS
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Diode Configuration：1 Pair Common Cathode
- Technology：Schottky
- Voltage - DC Reverse (Vr) (Max)：40 V
- Current - Average Rectified (Io) (per Diode)：40A
- Voltage - Forward (Vf) (Max) @ If：800 mV @ 20 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：-
- Current - Reverse Leakage @ Vr：12 µA @ 40 V
- Operating Temperature - Junction：150°C (Max)
- Mounting Type：Surface Mount
- Package / Case：TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Supplier Device Package：LPDS
- Grade：Automotive
- Qualification：AEC-Q101
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Overview
The RB238NS-40FHTL is a dual common cathode Schottky barrier diode manufactured by ROHM Semiconductor, designed for high-reliability applications. It features an average rectified forward current of 40 A per diode and a maximum repetitive reverse voltage of 45 V. The device exhibits a maximum forward voltage of 0.8 V at 20 A and a peak forward surge current capability of 100 A. Operating junction temperature reaches up to +150°C, with a storage range from -55°C to +150°C. Reverse leakage current is limited to 12 mA at 40 V. Packaged in TO-263S (D²PAK) surface-mount format, it meets AEC-Q101 automotive standards.
Feature Summary
- Dual common cathode configuration for efficient power conversion
- Automotive-grade reliability compliant with AEC-Q101 standards
- Super low reverse leakage current characteristics
- High thermal stability supporting elevated operating temperatures
Applications
- Automotive power supply circuits
- DC-DC converter modules
- General-purpose switching power supplies
Procurement Notes
Verify the specific suffix 'FHTL' against official ROHM documentation to confirm tape-and-reel packaging quantities and lead times. Ensure the ordering part number matches the exact voltage rating required for the target application. Cross-reference the datasheet revision date to validate electrical parameter tolerances before finalizing procurement specifications.
Selection Notes
Select this component when a dual Schottky configuration is required for synchronous rectification or freewheeling in automotive environments. The 40A current rating suits moderate-to-high power density designs. Verify that the TO-263S footprint aligns with the PCB layout constraints and thermal management strategy for the specific system architecture.
Part Context
This device belongs to the RB238NS series of automotive-grade Schottky barrier diodes. It shares the same package and pinout as other variants within the family but differs in reverse voltage ratings. The series is engineered to replace standard rectifiers with faster recovery and lower loss alternatives suitable for strict automotive quality requirements.
Replacement Considerations
Consult official ROHM substitution guides for direct replacements. Generic equivalents may lack AEC-Q101 certification or identical thermal performance. Verify pin compatibility and voltage derating margins before integrating alternative components into existing automotive designs.
