BC548C

Single Bipolar Transistors Overview

The onsemi BC548C is an NPN silicon epitaxial planar transistor designed for amplifier applications. It features a collector-emitter breakdown voltage of 30 V and a continuous collector current rating of 100 mA. The device offers a minimum DC current gain (hFE) of 420 at IC = 2.0 mA and VCE = 5.0 V, with a transition frequency (fT) reaching 300 MHz. Total device dissipation is rated at 625 mW at 25°C ambient temperature. It operates within a junction temperature range of -55°C to +150°C and utilizes a TO-92 package.

Single Bipolar Transistors Feature Summary

• High DC current gain suitable for sensitive amplification tasks
• Low noise characteristics optimized for audio signal processing
• Complementary PNP device available in the BC558 series

Single Bipolar Transistors Applications

• General purpose small-signal amplification
• Audio pre-amplifier stages
• Switching circuits requiring high gain

Single Bipolar Transistors Procurement Notes

Verify the specific ordering suffix against the manufacturer's documentation to confirm packaging type and lead-free status. Confirm that the component matches the required hFE binning specifications for the intended circuit design. Ensure compliance with RoHS directives if environmental regulations apply to the final assembly process.

Single Bipolar Transistors Selection Notes

Select this component when a high-gain NPN transistor is required for low-noise applications. Compare the 30 V collector-emitter voltage limit against circuit requirements. Consider the complementary BC558C for push-pull configurations. Verify thermal management needs based on the 625 mW power dissipation rating under expected operating conditions.

Single Bipolar Transistors Part Context

This component belongs to the BC546/BC547/BC548 series of NPN silicon transistors manufactured by onsemi. The 'C' suffix denotes the highest gain bin within the BC548 family. These devices are widely used in general-purpose electronics and share mechanical dimensions with other variants in the series while differing in electrical performance parameters.

Single Bipolar Transistors Replacement Considerations

BC548B serves as a lower gain alternative within the same series. BC549 offers higher voltage ratings but similar current capabilities. BC558C is the complementary PNP counterpart for symmetric circuit designs.