component

DTC144TCA

Public Made by Adom

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

componenttriode-mos tube-transistordtc144tcafactory-2.0.0extractor-text

Verified DTC144TCA

by Ray · last 12 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

12 Nov 2026RayPublished by the parts factory: tier lcsc, 3 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: DTC144TCA · SOT-23 · 3 pins
  • ✓copper: 3 copper pads, none touching another net
  • ✓datasheet: all 3 pin names found in the 15-page datasheet
  • •distributor (warn): no ['digikey', 'mouser'] number
  • ✓family: SOT-23
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-u10x14eq/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • ✓package_fit: height and body within the datasheet's package drawing (datasheet p.12)
  • ✓pads: 3 pins = 3 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 3 pins agree
  • ✓symbol_text: no pin names collide
  • ✓viewers: viewers/footprint.html 17 kB, viewers/symbol.html 7 kB
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ dtc144tca.kicad_sym✓ dtc144tca.kicad_mod✓ dtc144tca.step
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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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DTC144TCA

Changjing · Digital Transistors · SOT-23

DTC144TCA 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 to the built-in bias resistor network, with input resistor R1 specified at 32.9 kΩ min, 47 kΩ typ, 61.1 kΩ max.
2 GND power_in Ground reference pin for the NPN digital transistor, whose maximum ratings are VCEO 50 V and IC 100 mA.
3 OUT output Output pin of the NPN digital transistor, rated for collector-emitter voltage up to 50 V and collector current up to 100 mA.

Key specifications

Parameter Value
Manufacturer Changjing
Package SOT-23
Category Triode/MOS Tube/Transistor
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 Ta=25℃ (maximum ratings table) 2
Collector-emitter voltage VCEO 50 V Ta=25℃ (maximum ratings table) 2
Emitter-base voltage VEBO 5 V Ta=25℃ (maximum ratings table) 2
Collector current IC 100 mA Ta=25℃ (maximum ratings table) 2
Power dissipation (CA column, SOT-23) PD 200 mW Ta=25℃ (maximum ratings table) 2
Operation junction and storage temperature range TJ,Tstg -55 150 ℃ Ta=25℃ (maximum ratings table) 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=0.5mA 2
DC current gain hFE 100 300 600 VCE=5V,IC=1mA 2
Input resistor (R1) R1 32.9 47 61.1 kΩ 2
Transition frequency fT 250 MHz VCE=10V,IE=-5mA, f=100MHz 2

CAD (KiCad official)

  • Symbol: DTC144TCA
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: dtc144tca-etched.step / dtc144tca-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); dtc144tca.step / dtc144tca.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (15 pp, sha256 96ec7a9dc19923cf, retrieved 2026-11-12, 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