BC847,215

Overview

The BC847,215 is an NPN general-purpose silicon bipolar junction transistor manufactured by Nexperia. It is housed in a SOT-23 (TO-236AB) surface-mount plastic package with three pins. The device supports a maximum continuous collector current of 100 mA and a collector-emitter voltage of 45 V. Key electrical parameters include a collector-base voltage of 50 V, an emitter-base voltage of 6 V, and a total power dissipation of 250 mW. The transition frequency is specified at 100 MHz, with a DC current gain minimum of 110 at 2 mA and 5 V.

Feature Summary

• General-purpose switching and amplification capabilities
• Low noise performance suitable for signal processing
• High current gain characteristics

Applications

• General-purpose switching circuits
• Amplifier stages
• Signal conditioning

Procurement Notes

Verify the specific datasheet revision and gain binning requirements against your design specifications before procurement. Confirm that the SOT-23 footprint matches your PCB layout constraints. Ensure compliance with RoHS directives if required by your manufacturing standards. Cross-reference the manufacturer part number with authorized distributor catalogs to confirm authenticity and availability status.

Selection Notes

Select this component for designs requiring standard NPN amplification or switching within low-voltage limits. The 45 V rating defines the maximum operating voltage headroom. Consider the 250 mW power dissipation limit when calculating thermal management for dense PCB layouts. Verify that the 100 mA current capability meets the load requirements of the target application circuit.

Part Context

This component belongs to the BC847 series of NPN transistors, which are widely used in consumer electronics and industrial control systems. The series offers complementary PNP counterparts, such as the BC857, facilitating push-pull configurations. The BC847 variant specifically provides a baseline current gain suitable for general applications, distinguishing it from higher-gain variants like the BC847B or BC847C.

Replacement Considerations

Compatible substitutes include the BC847A, BC847B, and BC847C from Nexperia, provided their respective gain ranges align with circuit requirements. Other manufacturers producing equivalent NPN SOT-23 transistors with matching 45 V ratings and 100 mA currents may also serve as functional replacements.