BC489G

Single Bipolar Transistors Overview

The onsemi BC489G is a general-purpose NPN silicon epitaxial planar transistor housed in a TO-92 through-hole package. It features a maximum collector current of 500 mA, a collector-emitter voltage rating of 80 V, and a collector-base voltage of 100 V. The device has a maximum power dissipation of 625 mW at 25°C ambient temperature. Key electrical characteristics include a minimum DC current gain (hFE) of 100 and a transition frequency of 100 MHz. Operating temperatures range from -55°C to +150°C junction temperature.

Single Bipolar Transistors Feature Summary

• NPN polarity with silicon epitaxial planar construction for reliable switching performance
• High collector current capability suitable for moderate power applications
• Robust voltage ratings across collector-emitter and collector-base terminals
• Through-hole mounting configuration compatible with standard PCB layouts

Single Bipolar Transistors Applications

• General purpose switching circuits
• Audio amplifier stages
• Driver circuits for relays or LEDs
• Linear regulation applications

Single Bipolar Transistors Procurement Notes

Verify the specific suffix 'G' against the manufacturer's official datasheet to confirm pinout orientation and exact hFE binning. Ensure the component matches the required thermal resistance specifications for your enclosure design. Cross-reference the ordering part number with authorized distributors to avoid counterfeit components. Confirm compliance with RoHS directives if required by your assembly process.

Single Bipolar Transistors Selection Notes

Select this component when an NPN transistor with 80V breakdown and 500mA continuous current is needed. Compare the transition frequency against your signal requirements to ensure adequate bandwidth. Evaluate the thermal management needs based on the 625mW dissipation limit. Consider alternative packages if surface mount space is constrained.

Single Bipolar Transistors Part Context

This transistor belongs to onsemi's general-purpose small-signal bipolar transistor family. It is designed for versatile use in consumer electronics and industrial control systems. The TO-92 package provides a cost-effective solution for low-to-medium power applications requiring robust switching capabilities.

Single Bipolar Transistors Replacement Considerations

Consult the official datasheet for direct pin-compatible substitutes such as the BC487 or BC488 series. Verify that any replacement maintains the same NPN polarity and voltage ratings. Check for equivalent current gain and transition frequency specifications to ensure circuit compatibility.