2SC4081RT1

Single Bipolar Transistors Overview

The onsemi 2SC4081RT1 is a single NPN bipolar junction transistor (BJT) housed in an SOT-323 surface-mount package. It features a maximum collector-emitter voltage of 50 V and a continuous collector current of 150 mA. The device has a transition frequency of 180 MHz and a DC current gain ranging from 120 to 560. Power dissipation is rated at 200 mW, with an operating temperature range from -55°C to +150°C.

Single Bipolar Transistors Feature Summary

• NPN configuration for general-purpose switching and amplification
• High-speed operation with 180 MHz transition frequency
• Compact SOT-323 surface-mount footprint

Single Bipolar Transistors Applications

• General-purpose switching circuits
• Small signal amplification stages
• Low-voltage logic interface applications

Single Bipolar Transistors Procurement Notes

Verify the manufacturer designation carefully, as the '2SC' prefix is traditionally associated with ROHM Semiconductor. Confirm that the specific 'onsemi' variant matches the required electrical parameters and pinout compatibility for your design. Ensure the component meets all relevant automotive or industrial standards if applicable to your system requirements.

Single Bipolar Transistors Selection Notes

Select this component for low-power, high-frequency applications requiring a small form factor. Compare the 150 mA current limit and 50 V voltage rating against circuit demands. Consider the thermal management capabilities of the SOT-323 package for power dissipation constraints in dense PCB layouts.

Single Bipolar Transistors Part Context

This part belongs to the family of small-signal NPN transistors designed for compact electronic devices. It serves as a complement to PNP variants within similar packaging families, enabling push-pull configurations in audio or driver circuits where space is limited.

Single Bipolar Transistors Replacement Considerations

Public confirmed substitute part numbers include 2PC4081Q,135 from Nexperia USA Inc.