BC556CTA

Single Bipolar Transistors Overview

The BC556CTA is a PNP silicon epitaxial planar transistor manufactured by onsemi, designed for switching and audio frequency amplifier applications. It features a collector-emitter voltage of -65 V, a collector-base voltage of -80 V, and an emitter-base voltage of -5 V. The device supports a continuous collector current of -100 mA with a maximum power dissipation of 500 mW at 25°C ambient temperature. It utilizes a TO-92-3 kinked lead package for through-hole mounting. The component operates within a junction temperature range of -55°C to +150°C and offers a transition frequency of 150 MHz.

Single Bipolar Transistors Feature Summary

• Epitaxial silicon construction optimized for low noise performance in audio applications
• High breakdown voltage ratings suitable for general-purpose switching tasks
• Through-hole TO-92 package design facilitating standard board integration

Single Bipolar Transistors Applications

• Audio frequency amplification circuits
• General-purpose signal switching
• Driver stages for relay or LED control

Single Bipolar Transistors Procurement Notes

Verify the specific suffix 'CTA' against the official onsemi datasheet to confirm packaging type and binning specifications. Ensure the procurement source provides valid RoHS compliance documentation. Cross-reference the manufacturer part number with authorized distributor catalogs to avoid counterfeit components. Confirm that the delivered units match the exact electrical characteristics defined in the public specification sheet.

Single Bipolar Transistors Selection Notes

Select this component when a PNP transistor with -65 V collector-emitter voltage is required for low-noise audio or switching applications. The BC556 series is distinguished from the BC557 by its higher voltage rating. Consider the TO-92 package constraints for thermal management and board space. Verify that the hFE gain binning aligns with circuit requirements if precise gain matching is necessary.

Single Bipolar Transistors Part Context

The BC556CTA belongs to the BC556 family of PNP general-purpose transistors produced by onsemi. This series is widely used in consumer electronics and industrial equipment for signal processing and switching. The component serves as a complement to NPN devices like the BC546. It represents a standard solution for discrete transistor applications requiring reliable performance in small-signal environments.

Single Bipolar Transistors Replacement Considerations

Compatible substitutes include the BC556BTA and BC556ATA from onsemi, which share identical electrical ratings but differ in gain binning. Other manufacturers produce equivalent parts such as the MMBT3906 or generic BC556 variants, provided voltage and current limits are respected.