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DDTA124XUA-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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DDTA124XUA-7-F

Diodes Incorporated · Digital Transistors · SOT-323

DDTA124XUA-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 terminal (base of the PNP with built-in bias resistors); for DDTA124XUA the input voltage (1) to (2) is rated +10 V to -40 V.
2 GND power_in Common ground and reference terminal (emitter); all input and supply voltages are specified relative to this pin.
3 OUT output Output terminal (collector); supply voltage VCC (3) to (2) is rated -50 V maximum and output current for DDTA124XUA is rated -50 mA.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOT-323
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 ΔR1 -30 30 % 2
Resistance Ratio Tolerance ΔR2/R1 -20 20 % 2
DC Current Gain Gl -68 VO = -5V, IO = -10mA 2
Input Voltage (off) Vl(off) -0.4 V VCC = 5V, IO = 100μA 2
Input Voltage (on) Vl(on) -2.5 V VO = -0.3V, IO = -2mA 2
Input Current Il -0.36 mA VI = -5V 2
Output Voltage VO(on) -0.1 -0.3 V IO/Il = -10mA/-0.5mA 2
Output Current (off) IO(off) -0.5 μA VCC = -50V, VI = 0V 2
Supply Voltage VCC -50 V 1
Input Voltage VIN -40 10 V 1
Output Current IO -50 mA 1
Output Current (all IC max) IC -100 mA All IC (Max) 2
Power Dissipation Pd 200 mW 2
Thermal Resistance, Junction to Ambient Air RθJA 625 °C/W Mounted on FR4 PC board with recommended pad layout (Note 4) 2
Operating and Storage Temperature Range Tj, TSTG -55 150 °C 2
Built-in Input Resistor R1 (nominal) R1 22 KΩ 1
Resistor R2 (nominal) R2 47 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: Solderable per MIL-STD-202, Method 208 • Lead Free Plating (Matte Tin Finish annealed over 1

CAD (KiCad official)

  • Symbol: DDTA124XUA-7-F
  • Footprint: Package_TO_SOT_SMD:SOT-323_SC-70
  • 3D model: SOT-323 (KiCad packages3D, STEP)
  • 3D model files: ddta124xua-7-f-etched.step / ddta124xua-7-f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ddta124xua-7-f.step / ddta124xua-7-f.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (4 pp, sha256 d7af473cdacc488b, 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