SB4045LCT_T0_00001

Overview

The SB4045LCT is a low forward voltage Schottky rectifier manufactured by Panjit International Inc. It features a TO-220AB plastic case with solderable terminals compliant with MIL-STD-750 Method 2026. The device supports a maximum repetitive peak reverse voltage of 45 V and a maximum average forward rectified current of 40 A per device, or 20 A per diode in dual configurations. Peak forward surge current reaches 250 A under specified conditions. Typical thermal resistance is 1.9 °C/W per diode. Operating and storage temperature ranges extend from -55 °C to +150 °C.

Feature Summary

• Low forward voltage drop for reduced power loss
• High efficiency operation capability
• Lead-free construction compliant with EU RoHS directives
• Green molding compound meeting IEC61249 standards

Applications

• General purpose rectification in power supplies
• Free-wheeling diodes in DC-DC converters
• Reverse polarity protection circuits

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm packing type and environmental compliance status. The provided part number indicates Tape and Reel packaging on a 13-inch reel with RoHS compliance. Confirm terminal orientation and lead forming requirements prior to assembly integration to ensure mechanical compatibility with the target PCB layout.

Selection Notes

Select this component for applications requiring high current handling with minimal forward voltage drop. The TO-220AB package facilitates effective heat dissipation through direct mounting to heatsinks. Evaluate thermal resistance constraints and junction temperature limits relative to the expected ambient operating conditions and duty cycle requirements of the specific circuit design.

Part Context

This component belongs to Panjit's Schottky rectifier lineup designed for efficient power conversion. The SB4045LCT variant specifically targets high-current applications where conduction losses must be minimized. The product utilizes silicon technology housed in a robust plastic encapsulation suitable for industrial and commercial power electronics environments.

Replacement Considerations

Consult official substitution lists for verified equivalents. Ensure replacement parts match the 45 V reverse voltage rating, 40 A current capacity, and TO-220AB package dimensions. Verify that alternative components meet identical thermal resistance and junction temperature specifications.

FAQ

What is the typical forward voltage drop at rated current?

At an forward current of 20 A and junction temperature of 25°C, the maximum instantaneous forward voltage is 0.51 V.

How is the device packaged?

The standard configuration uses a TO-220AB plastic case with axial leads solderable per MIL-STD-750 Method 2026.

Is the component halogen-free?

Yes, the device utilizes green molding compound as per IEC61249 Standard, ensuring it is halogen-free.