BDX53B-S

Single Bipolar Transistors Overview

The BDX53B-S is a PNP Darlington transistor manufactured by Bourns Inc. It features an 80 V collector-emitter voltage rating and a maximum continuous collector current of 8 A. The device is housed in a TO-220AB flange mount package with three terminals. It has a minimum DC current gain (hFE) of 750 and is designed for high-power switching applications.

Single Bipolar Transistors Feature Summary

• PNP polarity configuration
• Darlington internal structure
• Flange mount plastic/epoxy package

Single Bipolar Transistors Applications

• High power switching circuits
• Motor control systems
• Power amplification stages

Single Bipolar Transistors Procurement Notes

Verify the specific suffix 'S' against official Bourns documentation to confirm if it denotes a specific tape-and-reel variant or packaging difference, as standard datasheets may list only the base part number. Ensure compliance requirements match project specifications.

Single Bipolar Transistors Selection Notes

Select this component for applications requiring high current gain and robust thermal management via a flange mount. Verify that the 80 V rating and 8 A current limits suit the load conditions. Confirm the TO-220AB footprint compatibility with the PCB design.

Single Bipolar Transistors Part Context

This part belongs to the BDX53 series of PNP Darlington transistors. These devices are typically used in power electronics where high input impedance and large output current capability are required. The series offers a balance of voltage handling and current capacity for industrial applications.

Single Bipolar Transistors Replacement Considerations

Check for direct substitutes from other manufacturers offering identical pinout and electrical ratings. Verify thermal resistance values and package dimensions to ensure mechanical interchangeability without redesigning the heatsink interface.