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The NST3946DXV6T5 is a dual general-purpose transistor housed in an SOT-563 surface-mount package. It integrates one NPN and one PNP bipolar junction transistor (BJT) within a single six-leaded device to reduce board space and component count. The NPN transistor provides a collector-emitter voltage of 40 V, while the PNP transistor offers -40 V. Both transistors support a continuous collector current of 200 mA. The device features a DC current gain ranging from 100 to 300 and low saturation voltages. Thermal characteristics include a total power dissipation of 500 mW when both junctions are heated at 25°C ambient temperature.
Verify the specific ordering suffix T5 against official documentation to confirm the tape and reel pitch and quantity specifications. Ensure compatibility with the required surface mount footprint dimensions. Confirm that the device meets all necessary thermal and electrical requirements for the intended operating environment before finalizing procurement decisions.
Select this component when a dual complementary transistor configuration is required in a small form factor. Consider the maximum ratings for collector-emitter voltage and continuous current to ensure adequate headroom for the application. Evaluate the thermal resistance and power dissipation capabilities relative to the expected operating temperature and PCB layout constraints.
This device belongs to the NST3946DXV6 series manufactured by onsemi. It serves as a spin-off from popular three-leaded SOT-23/SOT-323 devices, offering a consolidated solution for dual-transistor needs. The SOT-563 package allows for simplified circuit design by reducing the number of components and interconnections required on the printed circuit board.
The NST3946DXV6T1 is a compatible alternative within the same series, differing primarily in packaging pitch and shipping quantity rather than electrical function.