PMBT4401,185

Single Bipolar Transistors Overview

The PMBT4401,185 is an NPN switching transistor housed in a small SOT23 surface-mounted plastic package. It supports a maximum collector current of 600 mA and a collector-emitter voltage of 40 V. The device features a DC current gain ranging from 100 to 300 at 150 mA. Key electrical limits include a collector-base voltage of 60 V, emitter-base voltage of 6 V, and total power dissipation of 250 mW at 25 °C ambient temperature. Transition frequency reaches 250 MHz.

Single Bipolar Transistors Feature Summary

• High current handling capability up to 600 mA
• Low voltage operation with 40 V collector-emitter rating
• Small SOT23 surface-mount package design

Single Bipolar Transistors Applications

• Industrial switching applications
• Consumer switching applications

Single Bipolar Transistors Procurement Notes

Verify the specific ordering suffix matches the required packaging configuration before procurement. Confirm that the component version aligns with non-automotive qualification requirements as specified in the latest product data sheet revision. Ensure the manufacturing site code on the marking corresponds to the intended supply chain source.

Single Bipolar Transistors Selection Notes

Select this component for general-purpose NPN switching tasks requiring moderate current drive within a compact footprint. Verify that the application voltage remains below the 40 V collector-emitter limit. Consider the thermal resistance characteristics when designing heat dissipation strategies for high-duty cycle operations.

Single Bipolar Transistors Part Context

This part belongs to the Nexperia PMBT series of small signal transistors. It serves as the NPN complement to the PMBT4403 PNP transistor. The device utilizes an epitaxial planar structure optimized for efficient switching performance in standard surface-mount layouts.

Single Bipolar Transistors Replacement Considerations

Cross-reference with other manufacturers' MMBT4401 variants if sourcing constraints exist. Verify pinout compatibility and absolute maximum ratings match the original design specifications before substitution.