PDTC123JE,115

Overview

The PDTC123JE,115 is an NPN digital transistor manufactured by Nexperia (formerly NXP Semiconductors). It integrates a single NPN bipolar junction transistor with two built-in bias resistors: a base resistor (R1) of 2.2 kΩ and a base-emitter resistor (R2) of 47 kΩ. The device operates with a maximum collector-emitter voltage (Vceo) of 50 V and a maximum continuous collector current (Ic) of 100 mA. It is housed in a compact SOT323 surface-mount package, measuring 1.6 mm x 0.8 mm x 0.65 mm. The component supports a maximum operating temperature of +150 °C and features a typical DC current gain (hFE) range suitable for general switching applications.

Feature Summary

• Integrates dual bias resistors to simplify circuit design and reduce component count
• Provides high-density packaging for space-constrained printed circuit board layouts
• Offers standardized electrical characteristics for reliable general-purpose switching

Applications

• General purpose switching circuits
• Inverter and interface logic circuits
• Digital signal buffering and level shifting

Procurement Notes

Verify the manufacturer designation carefully, as Nexperia acquired the discrete semiconductor portfolio previously held by NXP Semiconductors. Confirm the specific suffix '115' corresponds to the required tape-and-reel packaging format. Ensure the ordering code matches the exact resistance values and package type specified in the official datasheet to avoid substitution errors during assembly.

Selection Notes

Select this component when a compact NPN switch requires integrated base biasing without external resistors. The 2.2 kΩ input resistor provides adequate drive capability for standard logic levels. Verify that the 50 V voltage rating and 100 mA current capacity meet the load requirements. Consider the thermal dissipation capabilities within the small SOT323 footprint for the intended application environment.

Part Context

This part belongs to the PDTC series of resistor-equipped transistors, designed to replace multiple discrete components with a single surface-mount device. It serves as a direct functional equivalent to other industry-standard digital transistors with identical internal resistor networks. The series is widely used in consumer electronics and industrial control boards where board space is limited.

Replacement Considerations

Compatible substitutes include the PDTC123EU and PDTC123JEF from Nexperia, which share identical electrical parameters and pin configurations. Ensure any replacement maintains the same SOT323 package dimensions and thermal characteristics to fit existing footprints.