BC550C A1G

Single Bipolar Transistors Overview

The BC550C A1G is a discontinued NPN silicon epitaxial planar transistor manufactured by Taiwan Semiconductor Corporation. It is housed in a TO-92 (TO-226AA) through-hole package. The device features a maximum collector-emitter voltage of 45 V and a continuous collector current rating of 100 mA. Power dissipation is rated at 500 mW, with an operating junction temperature range spanning from -65°C to 150°C. The component exhibits a minimum DC current gain (hFE) of 420 when tested at 2 mA and 5 V. It complies with RoHS3 standards and carries an EAR99 classification.

Single Bipolar Transistors Feature Summary

• NPN silicon epitaxial planar construction for reliable switching and amplification
• Low noise performance characteristics suitable for sensitive signal processing
• High DC current gain ensuring efficient control with minimal base drive
• Through-hole mounting capability in a standard TO-92 form factor

Single Bipolar Transistors Applications

• General-purpose low-noise amplifier circuits
• Audio signal pre-amplification stages
• Electronic switching applications requiring moderate current handling
• General-purpose analog signal conditioning

Single Bipolar Transistors Procurement Notes

This component is officially listed as obsolete and no longer manufactured by Taiwan Semiconductor Corporation. Verification of availability should focus on surplus or secondary market sources rather than direct factory orders. Buyers must confirm the authenticity of stock and check for potential product change notifications related to the discontinuation date. Ensure that any sourced units meet the original electrical specifications before integration into designs.

Single Bipolar Transistors Selection Notes

Designers should evaluate alternative components due to the end-of-life status of this part. When selecting replacements, verify that the substitute maintains compatible voltage ratings, current limits, and package dimensions. Consider the hFE binning requirements of the circuit design, as the 'C' suffix indicates a specific gain range. Ensure that any new selection supports the required thermal management and operating temperature range for the intended application environment.

Single Bipolar Transistors Part Context

The BC550 series belongs to a family of low-noise NPN transistors widely used in audio and general-purpose electronics. The 'C' suffix typically denotes a specific binning of current gain characteristics, offering higher amplification factors compared to lower suffixes. This specific variant from Taiwan Semiconductor follows industry-standard pinouts and mechanical dimensions associated with the BC546/BC550 lineage, facilitating drop-in replacements in legacy designs where equivalent parts are available.

Single Bipolar Transistors Replacement Considerations

Publicly documented similar substitutes include the BC547BTA, BC547BTF, BC547CTA, and BC547CTFR from onsemi. These alternatives share comparable NPN configurations and package types but may differ in specific gain ranges or noise profiles. Verify electrical compatibility before substitution.