2SD1841Q

Single Bipolar Transistors Overview

The 2SD1841Q is a single NPN bipolar junction transistor (BJT) manufactured by onsemi. It is designed for through-hole mounting in a TO-3PB package. The device features a maximum collector-emitter voltage of 100 V and a continuous collector current rating of 25 A. It has a power dissipation capacity of 3 W. This component serves as a discrete semiconductor solution for switching and amplification applications requiring moderate voltage handling and high current capability within a standard plastic encapsulated metal case format.

Single Bipolar Transistors Feature Summary

• Single NPN configuration for dedicated switching or amplification tasks
• Through-hole mounting compatibility via TO-3PB package
• High current handling capability up to 25 A
• Moderate voltage blocking up to 100 V

Single Bipolar Transistors Applications

• Power supply output stages
• Motor control circuits
• Industrial switching applications

Single Bipolar Transistors Procurement Notes

Verify the exact datasheet revision from onsemi to confirm thermal resistance values and absolute maximum ratings specific to your operating conditions. Ensure the TO-3PB package dimensions match your PCB layout requirements. Confirm that the 3 W power dissipation limit aligns with your thermal management strategy, as this value may require heatsinking depending on ambient temperature and duty cycle.

Single Bipolar Transistors Selection Notes

Select this component when a through-hole NPN transistor is required for currents up to 25 A and voltages up to 100 V. Consider the TO-3PB package size constraints and thermal performance relative to your enclosure design. Evaluate if the 3 W dissipation rating suffices for your application's thermal environment without excessive external cooling infrastructure.

Single Bipolar Transistors Part Context

This part belongs to onsemi's discrete bipolar transistor portfolio. It utilizes standard silicon planar technology typical for general-purpose power switching devices. The TO-3PB package provides electrical isolation from the mounting surface while maintaining mechanical robustness for industrial environments.

Single Bipolar Transistors Replacement Considerations

Cross-reference with other NPN transistors in the TO-3PB package offering similar 100V/25A ratings. Verify pinout compatibility and thermal characteristics before substitution.