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DDTA144EE-7-F

Public Made by Adom

by adom

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

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DDTA144EE-7-F

Diodes Incorporated · Digital Transistors · SOT-523

DDTA144EE-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 of the pre-biased transistor (base side of the built-in R1 = 47 kΩ / R2 = 47 kΩ network); input voltage is limited to +10 V to -40 V relative to pin 2 for DDTA144EE.
2 GND power_in Common ground reference for the input voltage (pin 1 to pin 2) and supply voltage (pin 3 to pin 2) ratings.
3 OUT output Output terminal (collector of the PNP transistor); supply voltage VCC is limited to 50 V from pin 3 to pin 2, and output current IO is limited to -30 mA for DDTA144EE.

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 (NOM), DDTA144EE R1 47 kΩ R1 (NOM) for DDTA144EE; R2 = R1 1
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 = -100µA 2
Input voltage (ON) Vl(ON) -1.9 -3 V VO = -0.3V, IO = -2mA, DDTA144EE 2
Output voltage (ON) VO(ON) -0.1 -0.3 V IO/Il = -10mA/-0.5mA DDTA144EE 2
Input current Il -0.18 mA VI = -5V, DDTA144EE 2
Output current (OFF) IO(OFF) -0.5 µA VCC = -50V, VI = 0V 2
DC current gain GI -68 VO = -5V, IO = -5mA, DDTA144EE 2
Gain-bandwidth product (transistor only) fT 250 MHz VCE = -10V, IE = 5mA, f = 100MHz 2
Supply voltage VCC 50 V Pin (3) to (2) 2
Input voltage VIN -40 10 V Pin (1) to (2), DDTA144EE 2
Output current IO -30 mA DDTA144EE 2
Output current IC (max) IC -100 mA Output current IC (Max) 2
Power dissipation PD 150 mW Note 5 & 6; 150mW per element must not be exceeded 2
Thermal resistance, junction to ambient RθJA 833 °C/W Note 5, FR-4 PCB 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: DDTA144EE-7-F
  • Footprint: Package_TO_SOT_SMD:SOT-523
  • 3D model: SOT-523, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.8 mm nominal SOT-523 height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
  • 3D model files: ddta144ee-7-f-etched.step / ddta144ee-7-f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ddta144ee-7-f.step / ddta144ee-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 67f73dcb3690a4c5, retrieved 2026-10-19, 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