component

DDTA143ZE-7-F

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Diodes Incorporated Digital Transistors, SOT-523. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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DDTA143ZE-7-F

Diodes Incorporated · Digital Transistors · SOT-523

DDTA143ZE-7-F from Diodes Incorporated, in a SOT-523. 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 terminal to the built-in R1 bias resistor, with the datasheet limiting VIN to +5 V to -30 V for the DDTA143ZE-7-F.
2 GND power_in Common reference terminal for input and output, with the datasheet rating supply voltage VCC at -50 V from pin 2 to pin 3.
3 OUT output Collector output terminal, rated at -100 mA maximum output current for the DDTA143ZE-7-F.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOT-523
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 R1 (nominal) R1 4.7 kΩ 1
Resistor R2 (nominal) R2 47 kΩ 1
Input Resistor Tolerance R1 -30 30 % 3
Resistance Ratio Tolerance R2/R1 -20 20 % 3
Input Voltage (OFF) Vl(OFF) -0.5 V VCC = -5V, IO = -100µA 3
Input Voltage (ON) Vl(ON) -1.3 V VO = -0.3V, IO = -5mA 3
Output Voltage VO(ON) -0.1 -0.3 V IO/Il = -5mA/-0.25mA DDTA143E 3
Input Current Il -1.8 mA VI = -5V 3
Output Current (OFF) IO(OFF) -0.5 µA VCC = -50V, VI = 0V 3
DC Current Gain Gl 80 VO = -5V, IO = -10mA 3
Gain-Bandwidth Product (transistor, for reference only) fT 250 MHz VCE = -10V, IE = 5mA, f = 100MHz 3
Supply Voltage VCC -50 V 2
Input Voltage (DDTA143ZE range) VIN -30 5 V 2
Output Current IO -100 mA 2
Output Current All (IC(MAX)) IC(MAX) -100 mA 2
Power Dissipation PD 150 mW Mounted on FR4 PC Board with minimum recommended pad layout 2
Thermal Resistance, Junction to Ambient Air RJA 833 C/W Mounted on FR4 PC Board with minimum recommended pad layout 2
Operating and Storage Temperature Range TJ, TSTG -55 150 C 2

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: DDTA143ZE-7-F
  • Footprint: Package_TO_SOT_SMD:SOT-523
  • 3D model: SOT-523 (KiCad packages3D, STEP)
  • 3D model files: ddta143ze-7-f-etched.step / ddta143ze-7-f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ddta143ze-7-f.step / ddta143ze-7-f.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (6 pp, sha256 1a64ca8b52dbad5b, retrieved 2026-10-27, 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