BC308A_J35Z

Single Bipolar Transistors Overview

The BC308A is a PNP silicon epitaxial planar transistor manufactured by onsemi, housed in a TO-92-3 leaded package. It features a maximum collector-emitter voltage of 25 V and a continuous collector current of 100 mA. The device has a transition frequency of 130 MHz and a maximum power dissipation of 500 mW. DC current gain (hFE) is specified at a minimum of 120 under test conditions of 2 mA base current and 5 V collector-emitter voltage. The saturation voltage is limited to 500 mV at 5 mA base and 100 mA collector currents.

Single Bipolar Transistors Feature Summary

• PNP polarity configuration for complementary circuit applications
• High-frequency operation capability up to 130 MHz
• Through-hole mounting via standard TO-92-3 leaded package

Single Bipolar Transistors Applications

• General-purpose small signal amplification
• Switching circuits requiring low voltage operation
• Complementary pairs with NPN transistors

Single Bipolar Transistors Procurement Notes

Verify the exact part number against official onsemi documentation, as suffixes may indicate specific tape-and-reel packaging or environmental compliance variations rather than functional changes. Confirm availability status, as this component may be discontinued or subject to supply constraints. Ensure the supplier provides valid traceability and authenticity guarantees for semiconductor components.

Single Bipolar Transistors Selection Notes

Select this component when a low-voltage PNP transistor with moderate current handling is required. The 25 V breakdown voltage limits its use in higher voltage environments. Consider the thermal management requirements due to the 500 mW power dissipation limit in the TO-92 package. Verify that the hFE range meets the specific gain requirements of the target amplifier or switch design.

Single Bipolar Transistors Part Context

The BC308A belongs to the BC307/BC308/BC309 series of general-purpose small-signal transistors. These devices are widely used in consumer electronics and industrial control applications where reliable switching and amplification at low voltages are necessary. The series offers standardized pinouts and electrical characteristics compatible with many legacy designs.

Single Bipolar Transistors Replacement Considerations

Consult official cross-reference lists for direct replacements. Potential substitutes include other PNP transistors with similar voltage and current ratings, such as the BC307 or BC309, provided their electrical parameters align with the design requirements. Always verify pinout compatibility and thermal performance before substitution.