BC550BTA

Single Bipolar Transistors Overview

The BC550BTA is an NPN epitaxial silicon small-signal transistor manufactured by onsemi. It features a maximum collector current of 100 mA and a collector-emitter voltage rating of 45 V. The device utilizes a TO-92 through-hole package with three pins. Key electrical characteristics include a minimum DC current gain (hFE) of 110, a collector-base voltage of 50 V, and an emitter-base voltage of 5 V. Maximum power dissipation is rated at 500 mW, with an operating temperature range from -55°C to +150°C.

Single Bipolar Transistors Feature Summary

• NPN polarity configuration for signal amplification and switching applications
• Epitaxial silicon construction ensuring stable performance
• Through-hole mounting capability in a standard TO-92 package

Single Bipolar Transistors Applications

• General-purpose signal amplification circuits
• Electronic switching applications
• Low-noise audio pre-amplifier stages

Single Bipolar Transistors Procurement Notes

Verify the specific datasheet version provided by the supplier, as parameters such as hFE ranges may vary between manufacturing lots or regional specifications. Confirm that the component matches the exact BC550BTA designation rather than similar variants like BC550CRL. Ensure compliance with relevant environmental standards required for the target assembly process.

Single Bipolar Transistors Selection Notes

Select this component when an NPN transistor with a 45V collector-emitter voltage and 100mA continuous current capacity is required. The TO-92 package is suitable for prototyping and low-volume production where through-hole mounting is preferred. Consider the minimum hFE of 110 for biasing calculations in amplifier designs requiring moderate gain stability.

Single Bipolar Transistors Part Context

This part belongs to the BC546–BC550 series of NPN transistors produced by onsemi. These devices are designed as complementary pairs to the BC556–BC560 PNP series, facilitating balanced circuit design. The BC550 specifically offers a 45V rating, distinguishing it from lower-voltage variants like the BC548/BC549 (30V) and higher-voltage options like the BC546 (65V).

Single Bipolar Transistors Replacement Considerations

Direct substitutes within the same family include the BC547BTA, which shares identical pinout and general electrical ratings but may differ in specific gain binning. Verify compatibility before replacing components in existing designs.