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DTC143TUA

Public Made by Adom

by adom

Changjing Digital Transistors, SOT-323. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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DTC143TUA

Changjing · Digital Transistors · SOT-323

DTC143TUA from Changjing, in a SOT-323. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 IN input Input terminal of the digital transistor, connected to the built-in input bias resistor R1, which the datasheet specifies as 4.7 kΩ typical (3.29 kΩ min, 6.11 kΩ max).
2 GND power_in Ground (common) terminal of the digital transistor.
3 OUT output Output terminal of the NPN digital transistor; the maximum ratings are VCEO 50 V and collector current IC 100 mA.

Key specifications

Parameter Value
Manufacturer Changjing
Package SOT-323
Category Transistors/Thyristors
Pins 3

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Collector-Base Voltage VCBO 50 V 2
Collector-Emitter Voltage VCEO 50 V 2
Emitter-Base Voltage VEBO 5 V 2
Collector Current IC 100 mA 2
Power Dissipation (UA column, SOT-323) PD 200 mW 2
Junction Temperature Tj 150 ℃ 2
Storage Temperature Tstg -55 150 ℃ 2
Collector-base breakdown voltage V(BR)CBO 50 V Ic=50µA,IE=0 2
Collector-emitter breakdown voltage V(BR)CEO 50 V Ic=1mA,IB=0 2
Emitter-base breakdown voltage V(BR)EBO 5 V IE=50µA,IC=0 2
Collector cut-off current ICBO 0.5 μA VCB=50V,IE=0 2
Emitter cut-off current IEBO 0.5 μA VEB=4V,IC=0 2
Collector-emitter saturation voltage VCE(sat) 0.3 V IC=5mA,IB=0.25mA 2
DC current gain hFE 100 600 VCE=5V,IC=1mA 2
Input resistor R1 3.29 4.7 6.11 kΩ 2
Transition frequency fT 250 MHz VCE=10V,IE=-5mA, f=100MHz 2

CAD (KiCad official)

  • Symbol: DTC143TUA
  • Footprint: Package_TO_SOT_SMD:SOT-323_SC-70
  • 3D model: SOT-323 (KiCad packages3D, STEP)
  • 3D model files: dtc143tua-etched.step / dtc143tua-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); dtc143tua.step / dtc143tua.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Changjing datasheet (15 pp, sha256 388270cd5f58d663, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF