BD743-S

Single Bipolar Transistors Overview

The BD743-S is a single NPN bipolar junction transistor manufactured by Bourns Inc. It is designed for through-hole mounting in the TO-220 package. The component features a maximum collector-emitter voltage of 45 V and supports a continuous collector current of 15 A. It has a power dissipation rating of 2 W, making it suitable for medium-power switching and amplification applications.

Single Bipolar Transistors Feature Summary

• NPN polarity configuration for standard circuit integration
• Through-hole TO-220 package for robust mechanical mounting
• High current handling capability up to 15 A

Single Bipolar Transistors Applications

• Power switching circuits
• Amplifier stages
• General-purpose electronic designs

Single Bipolar Transistors Procurement Notes

Verify the specific datasheet version from Bourns Inc. to confirm electrical characteristics and thermal resistance values. Ensure the TO-220 package dimensions match the target PCB layout requirements. Check RoHS compliance status if required by project specifications. Confirm availability with authorized distributors as supply levels may vary.

Single Bipolar Transistors Selection Notes

Select this component when a 45 V NPN transistor with 15 A current capacity is required. Consider the TO-220 package for adequate heat dissipation at 2 W power dissipation. Evaluate thermal management needs based on ambient temperature and load conditions. Compare against alternative transistors if higher voltage or different packaging is needed.

Single Bipolar Transistors Part Context

This part belongs to the family of single bipolar transistors offered by Bourns Inc. These components are typically used in discrete semiconductor applications requiring reliable switching or amplification. The manufacturer provides technical documentation detailing absolute maximum ratings and electrical performance curves for design reference.

Single Bipolar Transistors Replacement Considerations

Consult official cross-reference data for compatible substitutes. Verify that any replacement matches the NPN type, 45 V rating, 15 A current, and TO-220 package. Ensure pinout compatibility and thermal performance meet original design constraints before substitution.