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DDTA143ECA-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.

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DDTA143ECA-7-F

Diodes Incorporated · Digital Transistors · SOT-23

DDTA143ECA-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 Input pin for the DDTA143ECA, with input voltage limited to +10 V to -30 V relative to pin 2 (GND) and input current Il of -1.8 mA at VI = -5 V.
2 GND power_in Ground reference for the input and supply voltages; VIN is specified from pin 1 to pin 2 and VCC from pin 3 to pin 2.
3 OUT output Output pin for the DDTA143ECA, with output current IO limited to -100 mA and supply voltage VCC limited to -50 V measured from pin 3 to pin 2.

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 Resistor Tolerance R1 -30 30 % 2
Resistance Ratio Tolerance R2/R1 0.8 1 1.2 % 2
Input Voltage (off) Vl(off) -0.5 -1.1 V VCC = -5V, IO = -100A 2
Input Voltage (on) Vl(on) -1.9 -3 V VO = -0.3V, IO = -20mA 2
Output Voltage (on) VO(on) -0.1 -0.3 V IO/Il = -10mA/-0.5mA 2
Input Current Il -1.8 mA VI = -5V 2
Output Current (off) IO(off) -0.5 A VCC = -50V, VI = 0V 2
DC Current Gain Gl 20 VO = -5V, IO = -10mA 2
Supply Voltage VCC -50 V 2
Input Voltage VIN -30 10 V <Pin: (1) to (2)>, DDTA143ECA 2
Output Current IO -100 mA DDTA143ECA 2
Output Current (Max) IC -100 mA 2
Power Dissipation PD 200 mW @TA = +25°C; Note 7: FR-4 PC board, minimum recommended pad layout 2
Thermal Resistance, Junction to Ambient RθJA 625 °C/W Note 7: FR-4 PC board, minimum recommended pad layout 2
Operating and Storage Temperature Range TJ, TSTG -55 150 °C 2
Built-in Base Resistor R1 (NOM) R1 4.7 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: Finish, Matte Tin Plated Leads, Solderable per MIL-STD-202, Method 208 1

CAD (KiCad official)

  • Symbol: DDTA143ECA-7-F
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: ddta143eca-7-f-etched.step / ddta143eca-7-f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ddta143eca-7-f.step / ddta143eca-7-f.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (5 pp, sha256 238b94f121ac7005, 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