BC237CG

Single Bipolar Transistors Overview

The BC237CG is an NPN silicon small signal amplifier transistor manufactured by onsemi. It operates with a continuous collector current of 100 mA and features a collector-emitter breakdown voltage of 45 V. The device provides a minimum DC current gain (hFE) of 120 at IC = 2.0 mA and up to 800 at IC = 10 mA. It has a total power dissipation rating of 350 mW at 25°C ambient temperature, with a thermal resistance junction-to-ambient of 357 °C/W. The unit utilizes a TO-92 plastic package.

Single Bipolar Transistors Feature Summary

• NPN silicon construction for general-purpose amplification
• High DC current gain ranging from 120 to 800 depending on bias conditions
• Lead-free compliant packaging available

Single Bipolar Transistors Applications

• Amplifier circuits
• Switching applications
• General purpose transistor stages

Single Bipolar Transistors Procurement Notes

Verify the specific ordering suffix 'G' confirms lead-free compliance as documented in the datasheet. Confirm the package style matches Case 29 Style 17 requirements. Ensure the procurement documentation references publication number BC237/D for accurate electrical specifications and maximum ratings.

Single Bipolar Transistors Selection Notes

Select this component when a low-voltage NPN transistor with high current gain is required. The BC237CG offers a 45 V collector-emitter voltage rating suitable for standard logic and analog interfaces. Consider the 350 mW power dissipation limit for thermal management in compact designs.

Single Bipolar Transistors Part Context

This part belongs to the BC237 family of NPN silicon transistors produced by onsemi. It shares the same physical package and basic electrical characteristics as the BC237, BC237B, and BC237C variants, distinguished primarily by the specific hFE binning and the lead-free manufacturing process indicated by the suffix.

Single Bipolar Transistors Replacement Considerations

Direct substitutes include BC237, BC237B, and BC237C from onsemi. Other manufacturers producing equivalent NPN TO-92 transistors with similar 45V VCEO and 100mA IC ratings may be compatible if pinout and gain specifications align.