NJT4031NT1G

Single Bipolar Transistors Overview

The NJT4031NT1G is an NPN bipolar junction transistor manufactured by onsemi. It features a maximum collector-emitter voltage of 40 V and a maximum continuous collector current of 800 mA. The device is housed in a surface-mount SOT-223 package with four pins. It has a maximum power dissipation of 2 W and operates within a temperature range of -55°C to +150°C.

Single Bipolar Transistors Feature Summary

• NPN polarity configuration for switching applications
• Surface-mount SOT-223 packaging for compact designs
• High thermal stability up to 150°C

Single Bipolar Transistors Applications

• General-purpose switching circuits
• Low-power amplifier stages
• Signal processing interfaces

Single Bipolar Transistors Procurement Notes

Verify the manufacturer part number against official onsemi documentation to ensure authenticity. Confirm that the specific suffix matches the required tape-and-reel or cut-tape format. Check for AEC-Q101 automotive qualification if the application demands it, as standard variants may differ. Ensure the component meets RoHS compliance requirements for the target market.

Single Bipolar Transistors Selection Notes

Select this component when a small-signal NPN transistor with moderate current handling is required. The SOT-223 package offers better thermal performance than smaller SMD packages. Consider the 40V voltage rating for low-voltage logic interfacing. Evaluate the 800mA current limit against the circuit load requirements before finalizing the design.

Single Bipolar Transistors Part Context

This part belongs to the NJT series of small-signal transistors from onsemi. It is designed for general-purpose use in consumer electronics and industrial control systems. The series provides reliable performance in compact form factors suitable for modern surface-mount assembly processes.

Single Bipolar Transistors Replacement Considerations

Check for direct pin-compatible alternatives such as the NJT4030PT1G (PNP) if complementary pairing is needed. Verify electrical parameters like hFE and Vce(sat) against other NPN devices in the SOT-223 package from different manufacturers.