SB4040LDC_R2_00001

Overview

The SB4040LDC_R2_00001 is a Schottky diode array manufactured by Panjit International Inc. It features a dual common cathode configuration housed in a TO-263-3 (D2PAK) surface-mount package. The device supports a maximum repetitive peak reverse voltage of 40 V and an average forward rectified current of 20 A per element. Key electrical characteristics include a low forward voltage drop and fast switching speeds inherent to Schottky technology, designed for high-efficiency power conversion applications.

Feature Summary

• Dual common cathode configuration for efficient bridge or center-tapped rectification
• Schottky barrier construction for minimal forward voltage drop and reduced power loss
• Fast switching capability suitable for high-frequency operation
• Robust thermal performance via the exposed tab in the TO-263 package

Applications

• DC-DC converter output rectification
• Free-wheeling diodes in inductive load circuits
• Power supply input protection
• Solar panel bypass diodes

Procurement Notes

Verify the specific suffix R2 against the manufacturer's latest datasheet to confirm tape-and-reel packaging specifications and quantity per reel. Ensure the procurement documentation explicitly references the TO-263-3 lead frame dimensions and thermal pad requirements to guarantee compatibility with your PCB footprint and reflow soldering profile.

Selection Notes

Select this component when a dual common cathode topology is required for 40V systems carrying up to 20A. The TO-263 package provides superior heat dissipation compared to smaller SMD options. Evaluate the thermal resistance from junction to case to ensure adequate heatsinking or copper area on the PCB maintains junction temperatures within safe operating limits under continuous load conditions.

Part Context

This part belongs to Panjit's SB series of Schottky barrier rectifiers. These devices are engineered for general-purpose power rectification where low forward voltage and high surge current handling are critical. The SB4040LDC variant specifically addresses applications requiring isolated dual channels sharing a common ground reference in compact power modules.

Replacement Considerations

Cross-reference equivalent parts such as the MBRS4040 or SS4040 from other manufacturers. Verify that substitute components match the 40V rating, 20A current capacity, and TO-263-3 pinout configuration to ensure direct board-level interchangeability without circuit redesign.