BC308BTA

Single Bipolar Transistors Overview

The onsemi BC308BTA is a PNP bipolar junction transistor (BJT) housed in a TO-92 three-pin through-hole package. It features a maximum collector current of 100 mA and a collector-emitter voltage rating of 25 V. The device has a collector-base voltage of 30 V and an emitter-base voltage of 6 V. Key electrical characteristics include a transition frequency of 130 MHz, a DC current gain (hFE) minimum of 120 at 2 mA and 5 V, and a maximum power dissipation of 500 mW. The saturation voltage is 500 mV at 5 mA base and 100 mA collector currents. Operating temperatures range from -55°C to 150°C.

Single Bipolar Transistors Feature Summary

• PNP polarity configuration for complementary circuit applications
• High-speed switching capability with 130 MHz transition frequency
• Robust thermal performance supporting up to 150°C junction temperature

Single Bipolar Transistors Applications

• General-purpose signal amplification
• Switching circuits requiring PNP control
• Complementary pairs with NPN transistors

Single Bipolar Transistors Procurement Notes

Verify the specific suffix BTA against official datasheets to confirm binning or packaging variations. Confirm RoHS compliance status as manufacturing processes evolve. Check for obsolescence notices since related BC308 variants may have different lifecycle statuses. Ensure the supplier provides valid traceability documentation for quality assurance purposes.

Single Bipolar Transistors Selection Notes

Select this component when a PNP transistor with moderate speed and low current handling is required. The 25 V rating suits low-voltage logic interfaces. Compare hFE bins if precise gain matching is necessary for amplifier stages. Consider the TO-92 package constraints for thermal management in enclosed designs.

Single Bipolar Transistors Part Context

The BC308 series comprises small-signal PNP transistors designed for general-purpose use. The BC308BTA variant specifically denotes a particular gain bin within this family. These devices are commonly used in audio pre-amplifiers and switching applications where low noise and fast response are beneficial.

Single Bipolar Transistors Replacement Considerations

BC308A: Verified substitute with identical pinout and similar electrical ratings. BC308C: Verified substitute offering higher current gain specifications. BC558: Verified alternative with comparable performance metrics.