NSBC143TF3T5G

Overview

The NSBC143TF3T5G is an NPN Digital Transistor (BRT) from onsemi, featuring a monolithic bias resistor network integrated with a single transistor. It replaces discrete components to reduce board space and system cost. Key electrical parameters include a collector-emitter voltage of 50 Vdc, continuous collector current of 100 mAdc, and maximum power dissipation of 254 mW at 25°C. The device incorporates a base resistor (R1) of 4.7 kOhms and a base-emitter resistor (R2). It is housed in an SOT-1123 surface-mount package.

Feature Summary

• Integrates a single NPN transistor with a monolithic bias network consisting of series base and base-emitter resistors.
• Eliminates the need for external discrete biasing components, simplifying circuit design.
• Designed to reduce overall system cost and minimize printed circuit board area requirements.

Applications

• General-purpose switching applications requiring compact digital transistor solutions.
• Circuits where board space optimization and component count reduction are critical.
• Automotive and other applications requiring unique site and control change compliance via S/NSV prefix variants.

Procurement Notes

Verify the specific ordering suffix and marking code against the manufacturer's official documentation before procurement. Confirm that the selected variant meets all necessary automotive qualification standards if required by the application. Ensure compatibility with the specified SOT-1123 footprint and pinout configuration during the design phase.

Selection Notes

Select this component when a pre-biased NPN transistor is needed to drive loads or switch signals with minimal external parts. Consider the thermal characteristics and derating curves for high-temperature environments. Verify that the internal resistor values align with the target logic levels and drive requirements of the controlling microcontroller or gate driver.

Part Context

This part belongs to the DTC143T family of digital transistors published under document DTC143T/D. It shares functional similarities with related devices such as MUN2216, MMUN2216L, and DTC143TE, which utilize different packaging options like SC-59, SOT-23, and SC-75 while maintaining comparable electrical performance profiles.

Replacement Considerations

Direct substitutes within the same datasheet include MUN2216T1G, MMUN2216LT1G, MUN5216T1G, DTC143TET1G, and DTC143TM3T5G. These alternatives offer identical electrical characteristics but differ in physical package type and shipping configuration. Verify pinout compatibility and thermal dissipation capabilities when substituting.

FAQ

What are the internal resistor values for the NSBC143TF3T5G?

The device includes a series base resistor (R1) of 4.7 kOhms and a base-emitter resistor (R2).

Is the NSBC143TF3T5G suitable for automotive applications?

Yes, variants with the S or NSV prefix are AEC-Q101 qualified and PPAP capable for automotive and other applications requiring unique site and control change requirements.

What is the maximum collector-emitter voltage rating?

The maximum collector-emitter voltage (VCEO) is rated at 50 Vdc.