BC237BG

Single Bipolar Transistors Overview

The BC237BG is a small signal NPN silicon transistor manufactured by onsemi. It features a maximum collector current of 0.1 A and a collector-emitter voltage rating of 45 V. The device utilizes a TO-92 plastic package with three pins. It has a minimum DC current gain (hFE) of 200 and a maximum power dissipation of 0.35 W. The component operates at temperatures up to 150 °C.

Single Bipolar Transistors Feature Summary

• NPN silicon construction for general-purpose amplification
• High DC current gain classification for sensitive signal processing
• Through-hole TO-92 plastic encapsulation

Single Bipolar Transistors Applications

• General purpose amplification circuits
• Switching applications in low-power electronics
• Audio pre-amplifier stages

Single Bipolar Transistors Procurement Notes

Verify the specific suffix BG against official onsemi documentation to confirm the exact hFE binning and packaging specifications. Ensure the procurement source provides valid manufacturer traceability. Confirm RoHS compliance status through the latest datasheet revision, as regulatory standards may vary by production batch.

Single Bipolar Transistors Selection Notes

Select this component when a high-gain NPN transistor is required for low-current signal handling. The 45V breakdown voltage suits standard low-voltage logic and analog interfaces. Compare the 0.35W thermal limit against circuit dissipation requirements to ensure safe operation within the specified temperature range.

Single Bipolar Transistors Part Context

This part belongs to the BC237 series of NPN transistors designed for general-purpose use. The series includes variants with different gain ranges. The BC237BG specifically denotes a particular gain binning within the onsemi product line, sharing the same electrical ratings as other BC237 family members but differing in amplification characteristics.

Single Bipolar Transistors Replacement Considerations

Compatible substitutes include the BC237B from other manufacturers such as NXP or Microsemi, provided they meet the 0.1A current and 45V voltage requirements. Verify pinout compatibility and thermal performance before substitution.