PMSTA42,115

Single Bipolar Transistors Overview

The PMSTA42,115 is an NPN high-voltage transistor manufactured by Nexperia. It is housed in a compact SOT323 (SC-70) surface-mounted device plastic package with three leads. The component supports a maximum collector-emitter voltage of 300 V and a continuous collector current of 100 mA. Key electrical characteristics include a DC current gain ranging from 25 to 40 under specified conditions, a transition frequency of 50 MHz, and a total power dissipation capability of 200 mW at ambient temperatures up to 25 °C.

Single Bipolar Transistors Feature Summary

• High voltage handling capability for demanding switching applications
• Compact SOT323 surface-mount package design
• NPN bipolar junction transistor configuration

Single Bipolar Transistors Applications

• High-voltage switching in telephony applications

Single Bipolar Transistors Procurement Notes

Verify the specific ordering suffix

Single Bipolar Transistors Selection Notes

Select this component when a small-form-factor NPN transistor is required for high-voltage environments. Ensure the application operates within the 300 V collector-emitter limit and 100 mA current constraint. Consider the thermal resistance of 625 K/W in free air for heat management. Confirm that non-automotive qualification aligns with the target system requirements.

Single Bipolar Transistors Part Context

This part belongs to the PMSTA series of high-voltage transistors designed for space-constrained electronics. It serves as a discrete solution for voltage control tasks where standard low-voltage transistors are insufficient. The SOT323 packaging allows for automated surface-mount assembly, supporting efficient manufacturing processes for telecommunications and industrial control hardware.

Single Bipolar Transistors Replacement Considerations

The PMSTA92 is documented as the PNP complement to the PMSTA42. No other direct substitute part numbers are confirmed in the provided documentation.

Single Bipolar Transistors FAQ

Is the PMSTA42 automotive qualified?

No, the product data sheet explicitly states that the PMSTA42 is not automotive qualified and has been changed to non-automotive qualification status.

What is the maximum collector-base voltage?

The maximum collector-base voltage (VCBO) with the emitter open is 300 V.

What is the transition frequency of the PMSTA42?

The transition frequency (fT) is 50 MHz, measured at VCE = 20 V and IC = 10 mA.