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DTA143TCA

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Changjing Digital Transistors, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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DTA143TCA

Changjing · Digital Transistors · SOT-23

DTA143TCA from Changjing, in a SOT-23. 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 pin of the built-in bias resistor network, with input resistor R1 rated 4.7 kΩ typical (3.29 kΩ min, 6.11 kΩ max), so no external input resistor is needed.
2 GND power_in Ground pin of the digital transistor, serving as the common reference for the input and output pins.
3 OUT output Output pin of the PNP digital transistor, rated for a collector-emitter voltage VCEO of -50 V and a collector current IC of -100 mA at Ta=25℃.

Key specifications

Parameter Value
Manufacturer Changjing
Package SOT-23
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 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 R1 3.29 4.7 6.11 kΩ 2
Transition frequency fT 250 MHz VCE=-10V,IE=5mA, f=100MHz 2
Collector-Base Voltage VCBO -50 V Ta=25℃ 2
Collector-Emitter Voltage VCEO -50 V Ta=25℃ 2
Emitter-Base Voltage VEBO -5 V Ta=25℃ 2
Collector Current IC -100 mA Ta=25℃ 2
Power Dissipation (SOT-23 column CA) PD 200 mW Ta=25℃ 2
Operation Junction and Storage Temperature Range TJ,Tstg -55 150 ℃ 2

CAD (KiCad official)

  • Symbol: DTA143TCA
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: dta143tca-etched.step / dta143tca-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); dta143tca.step / dta143tca.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (15 pp, sha256 df74b4ad679b0161, retrieved 2026-10-17, 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