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DDTC144EUA-7-F

Public Made by Adom

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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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DDTC144EUA-7-F

Diodes Incorporated · Digital Transistors · SOT-323

DDTC144EUA-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) terminal of the built-in bias network; for DDTC144EUA the input voltage VIN is rated -10 V to +40 V relative to pin 2.
2 GND power_in Common ground (0 V) reference terminal; the supply and input voltage limits are specified between pin 3 and pin 2 and pin 1 and pin 2.
3 OUT output Output (collector) terminal; supply voltage VCC is rated at 50 V maximum relative to pin 2 and output current IO is rated at 100 mA for DDTC144EUA.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOT-323
Category Transistors
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) 0.5 1.1 V VCC = 5V, IO = 100µA 2
Input Voltage (ON), DDTC144EUA Vl(ON) 1.4 3 V VO = 0.3V, IO = 2mA, DDTC144EUA 2
Output Voltage (ON) VO(ON) 0.1 0.3 V IO/Il = 10mA/0.5mA, DDTC144EUA 2
Input Current Il 0.18 mA VI = 5V, DDTC144EUA 2
Output Current (OFF) IO(OFF) 0.5 µA VCC = 50V, VI = 0V 2
DC Current Gain, DDTC144EUA Gl 68 VO = 5V, IO = 5mA 2
Input Resistor (R1) Tolerance R1 -30 30 % 2
Resistance Ratio R2/R1 0.8 1 1.2 2
Supply Voltage VCC 50 V Pin: (3) to (2) 2
Input Voltage, DDTC144EUA VIN -10 40 V Pin: (1) to (2) 2
Output Current, DDTC144EUA IO 100 mA 2
Output Current, All IC(MAX) 100 mA 2
Power Dissipation PD 200 mW Note 6 2
Thermal Resistance, Junction to Ambient Air RθJA 625 C/W Note 6 2
Operating and Storage Temperature Range TJ, TSTG -55 150 C 2
Input Resistor R1 (NOM), DDTC144EUA R1 47 k Nominal value as printed (47k); R2 = R1 (NOM) 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: DDTC144EUA-7-F
  • Footprint: Package_TO_SOT_SMD:SOT-323_SC-70
  • 3D model: SOT-323 (KiCad packages3D, STEP)
  • 3D model files: ddtc144eua-7-f-etched.step / ddtc144eua-7-f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ddtc144eua-7-f.step / ddtc144eua-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 aaf1276e48864742, retrieved 2026-10-28, 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