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The PDTC143XT,215 is an integrated resistor-equipped, Automotive-grade pre-biased NPN bipolar transistor from Nexperia. This device incorporates an NPN transistor and two on-chip bias resistors (a 4.7kΩ base resistor and a 10kΩ base-emitter resistor) within a miniature SOT-23-3 package, forming a complete digital switch or buffer cell. Qualified to the AEC-Q100 Automotive standard, it is designed to simplify circuitry, save space, and meet the demand for high reliability and direct microcontroller drive in automotive electronics, industrial control, and general-purpose logic interface applications.
Category:Discrete Semiconductor Products;Transistors;Bipolar (BJT);Single, Pre-Biased Bipolar Transistors
Manufacturer:Nexperia USA Inc.
Packaging:Tape & Reel (TR);Cut Tape (CT)
Part Status:Active
Transistor Type:NPN - Pre-Biased
Current - Collector (Ic) (Max):100 mA
Voltage - Collector Emitter Breakdown (Max):50 V
Resistors Included:R1 and R2
Resistor - Base (R1):4.7 kOhms
Resistor - Emitter Base (R2):10 kOhms
DC Current Gain (hFE) (Min) @ Ic, Vce:50 @ 10mA, 5V
Vce Saturation (Max) @ Ib, Ic:100mV @ 500µA, 10mA
Current - Collector Cutoff (Max):1µA
Power - Max:250 mW
Grade:Automotive
Qualification:AEC-Q100
Mounting Type:Surface Mount
Package / Case:TO-236-3, SC-59, SOT-23-3
Supplier Device Package:TO-236AB
Base Product Number:PDTC143
Integrated Design, Saves Space: The built-in 4.7kΩ and 10kΩ resistors eliminate the need for external discrete bias components, significantly reducing PCB footprint, component count, and assembly cost.
Optimized Digital Interface: The internal resistor network provides a defined input bias, allowing it to connect directly to 3.3V or 5V microcontroller GPIO pins for stable switching control and improved noise immunity.
Low Saturation Voltage: Under typical operating conditions, the collector-emitter saturation voltage is as low as 100mV, resulting in very low conduction loss and high efficiency when used as a switch.
Automotive-Grade High Reliability: AEC-Q100 qualified, meeting stringent automotive requirements for temperature, humidity, and reliability, ensuring long-term stable operation in vehicular environments.
Compact and Robust Package: Housed in a standard SOT-23-3 surface-mount package, it features a very small size and good mechanical strength, suitable for high-density PCB layout and automated production.
Simplified Design Process: A ready-to-use solution that eliminates the need for engineers to calculate and select external bias components, accelerating product development cycles.
Automotive Electronics: Digital load switching and interface buffering in Body Control Modules (BCMs), sensor interfaces, lighting control, and infotainment systems.
Industrial Control: Digital output modules for PLCs, pushbutton/switch input interfaces, indicator light and small relay drivers.
Consumer Electronics: GPIO expansion, level shifting, or load switching in smartphones, tablets, and home appliances.
Communication Equipment: Controlling RF modules, LED status indicators, or serving as pull-up/buffer drivers for bus lines like I²C.
General-Purpose Logic Circuits: Constructing inverters, logic buffers, or simple wired-AND/OR circuits.
The PDTC143XT,215 is a pre-biased transistor that perfectly combines convenience, performance, and Automotive-grade reliability. Its core value lies in eliminating the need for external bias circuits through its integrated resistors and ensuring application reliability in harsh environments via AEC-Q100 qualification. For designs requiring numerous digital switch interfaces, space constraints, and extremely high reliability—particularly in the automotive and industrial sectors—this device offers an excellent solution that simplifies design, saves space, and enhances overall system reliability.
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