BD241D-S

Overview

The BD241D-S is a general-purpose NPN bipolar junction transistor manufactured by Bourns Inc. It is housed in a TO-220 through-hole package and rated for a maximum collector-emitter voltage of 120V with a continuous collector current of 3A. The device supports a power dissipation of up to 40W at a case temperature of 25°C, with an operating temperature range spanning from -65°C to +150°C. This component is designed for efficient power management applications requiring minimal heat dissipation.

Feature Summary

• NPN configuration suitable for general-purpose switching and amplification
• High voltage rating of 120V for robust circuit operation
• TO-220 through-hole package for effective thermal management

Applications

• Power supply circuits
• Switching applications
• Amplifier stages

Procurement Notes

Verify the obsolete status of this specific part number before procurement planning. Confirm availability of authorized substitutes such as the BD239C if production continuity is required. Ensure that any replacement components meet the original electrical specifications and package requirements to maintain system integrity.

Selection Notes

Select this component for designs requiring a 120V NPN transistor with 3A current handling capability in a TO-220 package. Consider the high power dissipation rating when designing thermal solutions. Evaluate alternative parts if the obsolete status prevents future sourcing.

Part Context

This component belongs to the BD241 series of single bipolar transistors from Bourns Inc. The series includes variants with different voltage ratings, such as the BD241F-S rated for 160V. These transistors are discrete semiconductor products designed for reliable performance in various electronic applications.

Replacement Considerations

The BD241D-S is listed as obsolete. The BD239C from STMicroelectronics is identified as a similar available substitute.