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The Diotec Semiconductor BC847S is a dual NPN bipolar junction transistor (BJT) array housed in an SOT-363 surface-mount package. It features a collector-emitter voltage (VCEO) of 45 V and a collector-base voltage (VCBO) of 50 V, with a maximum DC collector current (IC) of 100 mA. The device provides a DC current gain (hFE) ranging from 200 to 450 at IC = 2 mA and VCE = 5 V. Power dissipation is rated at 250 mW for industrial grades and 200 mW for commercial variants. Key electrical characteristics include a collector-emitter saturation voltage of 250 mV at IC = 10 mA and a transition frequency (fT) of 100 MHz.
Verify the specific suffix to confirm the operating grade. The absence of a suffix indicates an industrial-grade component, while the -C suffix denotes a commercial-grade version. Ensure that the selected variant meets the required reliability standards for the intended application environment before finalizing procurement.
Select the BC847S when a dual NPN configuration is required within a small footprint. Consider the -Q or -AQ suffixes if automotive qualification under AEC-Q101 is necessary. Evaluate the thermal resistance and power dissipation limits relative to the ambient temperature conditions of the target design.
This component belongs to the BC846/BC847 series of general-purpose NPN transistors. While the BC846S variant offers higher voltage ratings (65 V), the BC847S is optimized for lower voltage applications with a 45 V rating. Both share similar packaging and current handling capabilities, allowing for flexible design choices based on voltage requirements.
Publicly confirmed substitute part numbers are not available in the provided documentation.