BC237

Single Bipolar Transistors Overview

The Fairchild Semiconductor BC237 is a small signal NPN silicon transistor designed for general-purpose amplification and switching applications. It features a maximum collector current of 0.1 A and a collector-emitter breakdown voltage of 45 V. The device utilizes a TO-92 plastic package with three pins. Key electrical characteristics include a minimum DC current gain (hFE) of 120 and a maximum power dissipation of 0.35 W. The component supports an operating temperature up to 150 °C.

Single Bipolar Transistors Feature Summary

• NPN silicon construction for reliable small-signal performance
• High current gain suitable for amplifier stages
• Robust thermal handling with high maximum junction temperature

Single Bipolar Transistors Applications

• General-purpose amplification circuits
• Low-frequency switching applications
• Driver stages in consumer electronics

Single Bipolar Transistors Procurement Notes

Verify the manufacturer origin, as the BC237 part number is utilized by multiple vendors including ON Semiconductor and NXP. Confirm that the specific unit matches the Fairchild Semiconductor specifications regarding pinout and electrical ratings before integration into the design.

Single Bipolar Transistors Selection Notes

Select this component when a standard NPN transistor with moderate voltage rating and low current capacity is required. Ensure the application does not exceed the 0.1 A collector current limit or the 45 V breakdown voltage. Consider the TO-92 package constraints for thermal management in enclosed designs.

Single Bipolar Transistors Part Context

This component belongs to the BC237 series of NPN transistors, widely used in analog circuit design. It serves as a fundamental building block for discrete amplifier stages and logic interface circuits within electronic systems requiring reliable signal processing at low power levels.

Single Bipolar Transistors Replacement Considerations

Equivalent parts include the BC237B and BC237C variants, which offer higher minimum current gain thresholds. Other compatible replacements may include the 2N2222 or 2N3904, provided their voltage and current ratings align with the circuit requirements.