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The PBRN123YK,115 is an NPN Breakthrough In Small Signal (BISS) Resistor-Equipped Transistor (RET) from the PBRN123Y series. It features a collector-emitter voltage of 40 V and an output current capability of 600 mA in the SOT346 package. The device integrates bias resistors with R1 at 2.2 kΩ and R2 at 10 kΩ, providing a typical resistor ratio of 4.55. Key electrical characteristics include a minimum DC current gain (hFE) of 300 at 50 mA and a low collector-emitter saturation voltage. The component is housed in a SC-59A plastic surface-mounted package.
Verify the specific ordering suffix against the manufacturer's official documentation to confirm the exact packing method and reel specifications. Confirm that the component matches the required SC-59A package outline and pin configuration before integration into the production line.
Select this component when a compact NPN transistor with integrated base biasing is required for digital logic interfacing. Ensure the application current does not exceed the 600 mA limit for the SOT346 package and verify that the 40 V collector-emitter voltage rating aligns with the system supply requirements.
This part belongs to the PBRN123Y series of NPN BISS RETs manufactured by Nexperia. The series includes variants such as PBRN123YT and PBRN123YS, which share similar electrical characteristics but differ in package type and maximum current ratings. The PBRN123YK specifically utilizes the SOT346 (SC-59A) surface-mount package.
Direct substitutes within the same family include PBRN123YT and PBRN123YS, provided the package form factor change is acceptable. Verify that any replacement maintains the 40 V VCEO rating and comparable hFE characteristics.