BC847A,215

Overview

The BC847A,215 is a single NPN general-purpose bipolar junction transistor manufactured by Nexperia. It is housed in an SOT-23 (TO-236AB) surface-mount plastic package. The device features a maximum collector-emitter voltage of 45 V and a maximum collector-base voltage of 50 V. It supports a continuous collector current of 100 mA with a total power dissipation of 250 mW. The BC847A variant provides a minimum DC current gain (hFE) of 110 at 2 mA and 5 V. It operates within a temperature range of -65°C to +150°C.

Feature Summary

• Single NPN configuration for general-purpose switching and amplification
• Three distinct gain selection groups available within the series
• Small SOT-23 surface-mount plastic package design

Applications

• General-purpose switching circuits
• Signal amplification stages
• Low-power logic interface applications

Procurement Notes

Verify the specific suffix '215' corresponds to the intended reel packaging format when ordering. Confirm that the BC847A gain bin meets the circuit requirements, as it differs from the higher-gain B and C variants. Ensure the SOT-23 footprint matches the PCB layout constraints. Cross-reference the manufacturer part number with distributor codes to avoid confusion with similar packages or complementary PNP types.

Selection Notes

Select this component when a low-cost, small-footprint NPN transistor is required for standard signal processing tasks. The BC847A offers a lower minimum gain compared to BC847B or BC847C, which may be suitable for applications requiring tighter gain control or reduced sensitivity. Consider the SOT-23 thermal limits if operating near the maximum power dissipation rating. Verify compatibility with the target assembly process for surface-mount technology.

Part Context

This component belongs to the BC847x family of general-purpose NPN transistors produced by Nexperia. The family includes variants with different gain characteristics (A, B, and C) sharing identical electrical ratings and physical dimensions. These devices are widely used in consumer electronics and industrial equipment due to their reliability and compact size. The BC847A specifically targets applications where moderate gain is sufficient.

Replacement Considerations

Compatible substitutes include BC847A,115 and BC847A,133 from Nexperia, which share the same electrical specifications and pinout. Other manufacturers offer equivalent parts such as the 2N3904 in through-hole packages, though physical mounting differences apply. Always verify package compatibility and gain bin specifications before substituting.