BU941ZTFP

Single Bipolar Transistors Overview

The BU941ZTFP is an NPN power Darlington transistor manufactured by STMicroelectronics, designed for high-voltage automotive applications. It features a collector-emitter voltage (VCEO) of 400 V and a maximum DC collector current of 15 A. The device dissipates up to 180 W of power and operates at junction temperatures up to +150°C. It includes a built-in clamping Zener diode and utilizes Multi-Epitaxial Planar technology for ruggedness.

Single Bipolar Transistors Feature Summary

• Built-in clamping Zener diode for protection against inductive load switching transients
• Fully insulated package compliant with UL standards for safe mounting
• High operating junction temperature capability for robust thermal performance
• Rugged bipolar technology suitable for harsh automotive environments

Single Bipolar Transistors Applications

• Electronic ignition power actuators in automotive systems
• Ignition coil drivers requiring high voltage handling
• Automotive-grade power switching applications

Single Bipolar Transistors Procurement Notes

Verify the specific suffix 'FP' against official STMicroelectronics documentation to confirm package type and pinout compatibility. Confirm end-of-life status and last-time-buy availability through authorized distributors. Ensure the component meets required automotive qualification standards for the target application environment.

Single Bipolar Transistors Selection Notes

Select this component for applications requiring high voltage isolation and ruggedness in automotive ignition circuits. Consider the TO-263 surface-mount package for PCB integration. Verify thermal management requirements due to high power dissipation capabilities. Ensure the control circuit can drive the Darlington configuration effectively.

Single Bipolar Transistors Part Context

This part belongs to STMicroelectronics' portfolio of high-voltage Darlington transistors designed for automotive use. It shares family characteristics such as Multi-Epitaxial Planar technology and built-in protection features with other models in the series, tailored for electronic ignition systems.

Single Bipolar Transistors Replacement Considerations

Check for direct substitutes within the same automotive-grade Darlington family. Verify equivalent voltage, current, and package specifications before substitution.