BC337,126

Single Bipolar Transistors Overview

The BC337,126 is an NPN general-purpose silicon transistor manufactured by Nexperia (formerly NXP Standard Products). It is housed in a SOT54 plastic single-ended leaded through-hole package. The device supports a maximum collector-emitter voltage of 45 V and a continuous DC collector current of 500 mA. Peak collector current capability reaches 1 A. Total power dissipation is rated at 625 mW at an ambient temperature of 25 °C. The junction temperature limit is 150 °C.

Single Bipolar Transistors Feature Summary

• High current handling capability for switching applications
• Low voltage operation suitable for standard logic levels

Single Bipolar Transistors Applications

• General-purpose switching circuits
• Amplification stages
• Driver and output stages of audio amplifiers

Single Bipolar Transistors Procurement Notes

Verify the manufacturer origin carefully, as the former NXP Standard Product business was transferred to Nexperia. Confirm that the specific ordering suffix corresponds to the tape ammopack packing method described in the official documentation. Ensure compatibility with the SOT54 package dimensions before finalizing procurement specifications.

Single Bipolar Transistors Selection Notes

Select this component when a through-hole NPN transistor is required for moderate current loads up to 500 mA. Consider the thermal resistance characteristics if operating near the maximum power dissipation limits. Verify that the application voltage does not exceed the 45 V collector-emitter rating under any operating condition.

Single Bipolar Transistors Part Context

This part belongs to the BC817/BC337 family of NPN general-purpose transistors. The BC337 variant specifically utilizes the SOT54 through-hole package, distinguishing it from surface-mount options like the BC817. The PNP complement for this device is the BC327.

Single Bipolar Transistors Replacement Considerations

Direct functional substitutes within the same family include the BC337-16, BC337-25, and BC337-40, which differ primarily in DC current gain selection groups.