component

DDTA144WCA-7-F

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

componenttransistors-thyristorsddta144wca-7-ffactory-2.0.0extractor-text

Verified DDTA144WCA-7-F

by Ray · last 30 Oct 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

30 Oct 2026RayPublished by the parts factory: tier mfr, 3 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: DDTA144WCA-7-F · SOT-23 · 3 pins
  • ✓copper: 3 copper pads, none touching another net
  • ✓datasheet: all 3 pin names found in the 4-page datasheet
  • ✓distributor: lcsc C5245823, digikey 31-DDTA144WCA-7-FTR-ND, mouser 621-DDTA144WCA-7-F
  • ✓family: SOT-23
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-yfm81eb8/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 3 pins = 3 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 3 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ ddta144wca-7-f.kicad_sym✓ ddta144wca-7-f.kicad_mod✓ ddta144wca-7-f.step
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3D Model

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Symbol & Footprint

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PCB Footprint

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Datasheet

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Contents

README

markdown

DDTA144WCA-7-F

Diodes Incorporated · Digital Transistors · SOT-23

DDTA144WCA-7-F from Diodes Incorporated, 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 Base input of the built-in bias network; for DDTA144WCA the input voltage VIN is rated +10 to -40 V referenced to GND.
2 GND power_in Common ground reference for the input and output; all voltages are referenced to this pin.
3 OUT output Collector output of the PNP transistor; for DDTA144WCA the output current IO is rated -30 mA maximum and the supply voltage VCC is rated -50 V.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
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
Input Voltage (off) Vl(off) -0.8 V VCC = 5V, IO = 100μA 2
Input Voltage (on) Vl(on) -4 V VO = -0.3V, IO = -2mA 2
Output Voltage (on) VO(on) -0.1 -0.3 V IO/Il = -10mA/-0.5mA All Others 2
Input Current Il -0.16 mA VI = -5V 2
Output Current (off) IO(off) -0.5 μA VCC = -50V, VI = 0V 2
DC Current Gain Gl -56 VO = -5V, IO = -10mA 2
Input Resistor Tolerance ΔR1 -30 30 % 2
Resistance Ratio Tolerance ΔR2/R1 -20 20 % 2
Supply Voltage VCC -50 V 1
Input Voltage DDTA144WCA VIN -40 10 V 1
Output Current DDTA144WCA IO -30 mA 1
Output Current All IC (Max) IC -100 mA 1
Power Dissipation Pd 200 mW 2
Thermal Resistance, Junction to Ambient Air RθJA 625 °C/W Mounted on FR4 PC Board with recommended pad layout 2
Operating and Storage Temperature Range Tj, TSTG -55 150 °C 2
Input Resistor R1 (NOM) R1 47 kΩ 1
Input Resistor R2 (NOM) R2 22 kΩ 1

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin • Terminals: Solderable per MIL-STD-202, Method 208 • Lead Free Plating (Matte Tin Finish annealed over Alloy 1

CAD (KiCad official)

  • Symbol: DDTA144WCA-7-F
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: ddta144wca-7-f-etched.step / ddta144wca-7-f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ddta144wca-7-f.step / ddta144wca-7-f.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (4 pp, sha256 77b10576bfb16755, retrieved 2026-10-30, tier: manufacturer)
  • 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