PDTC143ZU,115

Overview

The PDTC143ZU,115 is an NPN Resistor-Equipped Transistor (RET) manufactured by Nexperia in a SOT-323 (SC-70) surface-mount package. It integrates bias resistors to simplify circuit design and reduce component count. Key electrical parameters include a collector-emitter voltage (VCEO) of 50 V, a continuous output current (IO) of 100 mA, and a total power dissipation (Ptot) of 200 mW at 25 °C. The built-in input resistor (R1) has a typical value of 4.7 kΩ with a range of 3.3 to 6.1 kΩ, while the bias resistor ratio (R2/R1) typically equals 10. The device operates within a junction temperature range of -65 °C to +150 °C.

Feature Summary

• Integrates built-in bias resistors to simplify circuit design and reduce overall component count.
• Provides 100 mA output current capability suitable for digital switching applications.
• Housed in a compact SOT-323 (SC-70) plastic surface-mount package.

Applications

• Digital applications in industrial segments
• Cost-saving alternative for BC847 series in digital applications
• Controlling IC inputs
• Switching loads

Procurement Notes

Verify the specific ordering suffix against official Nexperia documentation to confirm packaging details such as reel or cut tape configuration. Ensure that the procurement channel provides valid traceability for the manufacturing site code indicated by the marking prefix. Confirm compliance with RoHS directives and check for any recent product status changes or obsolescence notices directly from the manufacturer before finalizing orders.

Selection Notes

Select this component when a compact NPN transistor with integrated base biasing is required for space-constrained designs. The fixed R1 and R2 values are optimized for standard logic interfacing. Verify that the 50 V collector-emitter voltage rating meets the maximum operating voltage of the target application. Consider the thermal resistance characteristics if high ambient temperatures or dense PCB layouts are present.

Part Context

This part belongs to the Nexperia PDTC143 series of NPN resistor-equipped transistors. It serves as the NPN complement to the PDTA143ZU PNP variant. The device is designed as a direct replacement for discrete resistor-transistor networks, offering a cost-effective solution for digital signal processing and load control tasks in consumer and industrial electronics.

Replacement Considerations

The PDTA143ZU is the documented PNP complement. For equivalent NPN RETs with different resistor values, consult the broader PDTC1xx family datasheet. Direct pin-compatible replacements must match the SOT-323 package and verify similar VCEO and IO ratings.