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DDTC143FUA-7-F

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

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Generated by kicad-footprint-generator · KiCad file format 20260206
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DDTC143FUA-7-F

Diodes Incorporated · Digital Transistors · SOT-323

DDTC143FUA-7-F from Diodes Incorporated, 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 (base) through R1 = 4.7kΩ nominal; VIN rated -6 to +30 V, VIN(off) min 0.3 V at VCC = 5V, VIN(on) max 1.3 V at IOUT = 3mA.
2 GND power_in Ground (emitter) reference; R2 = 22kΩ nominal connects from the base node to this pin, and VCC and VIN are specified relative to it.
3 OUT output Output (collector) of the NPN transistor; VCC rated 50 V, IOUT 100 mA max, IOUT(off) max 0.5 μA at VCC = 50V.

Key specifications

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

CAD (KiCad official)

  • Symbol: DDTC143FUA-7-F
  • Footprint: Package_TO_SOT_SMD:SOT-323_SC-70
  • 3D model: SOT-323 (KiCad packages3D, STEP)
  • 3D model files: ddtc143fua-7-f-etched.step / ddtc143fua-7-f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ddtc143fua-7-f.step / ddtc143fua-7-f.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (7 pp, sha256 e177393e190cb264, retrieved 2026-10-09, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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