BULB49DT4

Single Bipolar Transistors Overview

The BULB49DT4 is a high-voltage fast-switching NPN power transistor manufactured using high voltage multi-epitaxial planar technology. This construction enables high switching speeds and robust high voltage capability. The device is specifically engineered for use in electronic transformers designed for halogen lamps, ensuring reliable operation with minimal lot-to-lot parameter spread.

Single Bipolar Transistors Feature Summary

• High voltage capability
• Very high switching speed
• High ruggedness
• Low spread of dynamic parameters

Single Bipolar Transistors Applications

• Electronic transformers for halogen lamps

Single Bipolar Transistors Procurement Notes

Verify the specific suffix 'T4' against official STMicroelectronics documentation to confirm tape-and-reel packaging specifications. Ensure the component matches the high-voltage multi-epitaxial planar technology description. Cross-reference the part number with authorized distributors to validate authenticity and current production status before procurement.

Single Bipolar Transistors Selection Notes

Select this component when designing circuits requiring high voltage handling and rapid switching characteristics. It is suitable for applications demanding high ruggedness and consistent dynamic performance. Consider its specific suitability for halogen lamp electronic transformers rather than general-purpose switching tasks.

Single Bipolar Transistors Part Context

This part belongs to the family of high voltage bipolar PNP-NPN transistors rated up to 500 V. It utilizes advanced planar technology to achieve superior switching performance compared to standard power transistors, targeting specialized lighting control applications.

Single Bipolar Transistors Replacement Considerations

Consult official substitution guides for compatible high-voltage NPN power transistors within the same voltage rating class. Verify pinout compatibility and thermal characteristics before replacing.