BC489A

Single Bipolar Transistors Overview

The BC489A is an NPN silicon small-signal transistor designed for high-current applications. It features a maximum collector-emitter voltage of 80 V and a continuous collector current rating of 0.5 A. The device operates within a junction temperature range of -55°C to +150°C and dissipates up to 1.5 W at 25°C ambient temperature. Electrical characteristics include a minimum DC current gain (hFE) of 60 at IC = 100 mA, with a transition frequency (fT) typically reaching 200 MHz.

Single Bipolar Transistors Feature Summary

• Capable of handling continuous collector currents up to 0.5 A
• Provides high-voltage blocking capability with an 80 V collector-emitter breakdown rating
• Offers a wide operating temperature range suitable for demanding environments

Single Bipolar Transistors Applications

• High-current switching circuits
• Linear amplifier stages requiring moderate power dissipation
• General-purpose discrete transistor designs

Single Bipolar Transistors Procurement Notes

Verify the specific ordering suffix against the manufacturer's documentation to confirm package type and shipping configuration. Confirm RoHS compliance status if required by assembly specifications. Ensure the component matches the exact electrical grade designated by the 'A' suffix regarding current gain thresholds before finalizing procurement.

Single Bipolar Transistors Selection Notes

Select this component when circuit requirements demand higher current handling than standard small-signal transistors while maintaining low saturation voltages. Evaluate thermal management needs based on the 1.5 W power dissipation limit and the specified derating curve above 25°C ambient temperature to ensure reliable operation under load.

Single Bipolar Transistors Part Context

This part belongs to the BC489 family of NPN silicon transistors manufactured by onsemi. The series includes variants distinguished by their DC current gain ranges, specifically the BC489, BC489A, and BC489B. These devices are housed in TO-92 packages and serve as robust alternatives for general-purpose amplification and switching tasks.

Single Bipolar Transistors Replacement Considerations

Direct substitutes within the same family include the BC489 and BC489B, which share identical pinouts and maximum ratings but differ in hFE grading.