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Product Detailed Parameters
- Description：DIODE ARRAY SCHOTT 45V 20A 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)：45 V
- Current - Average Rectified (Io) (per Diode)：20A
- Voltage - Forward (Vf) (Max) @ If：650 mV @ 10 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：-
- Current - Reverse Leakage @ Vr：140 µA @ 45 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 RBQ20NS45AFHTL is a Schottky barrier diode manufactured by ROHM Semiconductor, designed for high-efficiency rectification in automotive and industrial applications. It features a dual anode common cathode configuration housed in a TO-263S (D2PAK) surface-mount package. The device supports a repetitive reverse voltage of 45 V and an average forward current of 20 A. Key electrical parameters include a maximum forward voltage of 540 mV at 10 A, a peak forward surge current capability of 100 A, and a low reverse leakage current of 30 uA. It operates at junction temperatures up to +150°C and complies with the AEC-Q101 automotive qualification standard.
Feature Summary
- Dual anode common cathode configuration enables efficient bridge rectification or synchronous rectification topologies within a compact three-terminal package.
- Automotive-grade reliability certified under AEC-Q101 standards, ensuring robust performance in demanding thermal and electrical environments.
- Low forward voltage drop characteristic minimizes conduction losses and improves overall system efficiency during high-current operation.
Applications
- Automotive power supply circuits requiring AEC-Q101 compliance
- General-purpose rectification in DC-DC converters
- Free-wheeling diodes in inductive load switching applications
Procurement Notes
Verify the complete part number including the suffix HTL to confirm reel packaging specifications. Ensure compatibility with the TO-263S footprint during PCB layout. Confirm that the design accounts for the 150°C maximum junction temperature rating. Validate that the 45V reverse voltage rating exceeds the circuit's peak inverse voltage requirements. Check for any specific handling instructions related to surface-mount assembly processes.
Selection Notes
Select this component when a dual-diode solution is required in a D2PAK form factor. The 45V rating suits low-voltage automotive systems. Compare forward voltage characteristics against alternatives to optimize thermal management. Consider the 20A current capacity relative to the expected load profile. Verify that the AEC-Q101 certification meets specific OEM quality requirements.
Part Context
This device belongs to ROHM's RBQ series of automotive Schottky barrier diodes. The series emphasizes high reliability and low forward voltage for power conversion applications. The TO-263S package provides enhanced thermal dissipation compared to smaller surface-mount options. The dual anode configuration offers design flexibility for various rectifier circuits.
Replacement Considerations
The alias RBQ20NS45AFH represents the same functional device without the specific tape-and-reel suffix. Verify pinout compatibility before substitution. Ensure the replacement maintains the AEC-Q101 qualification if automotive use is required. Confirm that the thermal resistance characteristics match the existing heatsink design.
