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DDTC143FE-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.

componenttransistors-thyristorsddtc143fe-7-ffactory-2.0.0extractor-text

Verified DDTC143FE-7-F

by Ray · last 5 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

5 Nov 2026RayPublished by the parts factory: tier mfr, 3 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: DDTC143FE-7-F · SOT-523 · 3 pins
  • ✓copper: 3 copper pads, none touching another net
  • ✓datasheet: all 3 pin names found in the 4-page datasheet
  • •distributor (warn): no ['mouser'] number
  • ✓family: SOT-523
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-gtqv4xlc/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • ✓package_fit: height and body within the datasheet's package drawing (datasheet p.1)
  • ✓pads: 3 pins = 3 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 3 pins agree
  • ✓symbol_text: no pin names collide
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ ddtc143fe-7-f.kicad_sym✓ ddtc143fe-7-f.kicad_mod✓ ddtc143fe-7-f.step
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3D Model

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Symbol & Footprint

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PCB Footprint

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Datasheet

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Contents

README

markdown

DDTC143FE-7-F

Diodes Incorporated · Digital Transistors · SOT-523

DDTC143FE-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 pin, connected to the base through the built-in input resistor R1; the input voltage (pin 1 to pin 2) is limited to -6 V to +30 V for DDTC143FE.
2 GND power_in Ground reference (emitter) common to input and output; the supply voltage VCC (pin 3 to pin 2) is rated at 50 V maximum.
3 OUT output Output pin (collector) of the pre-biased NPN transistor; output current is limited to 100 mA for DDTC143FE and to 100 mA maximum for all ICs.

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 Voltage (VI(off) threshold, low level) Vl(off) 0.3 V VCC = 5V, IO = 100μA 2
Input Voltage (VI(on) threshold, high level) Vl(on) 1.3 V VO = 0.3V, IO = 3mA 2
Output Voltage VO(on) 0.1 0.3 V IO/Il = 10mA/0.5mA All Others 2
Input Current Il 1.8 mA VI = 5V 2
Output Current (off) IO(off) 0.5 μA VCC = 50V, VI = 0V 2
DC Current Gain Gl 68 VO = 5V, IO = 10mA 2
Input Resistor Tolerance ΔR1 -30 30 % 2
Resistance Ratio Tolerance ΔR2/R1 -20 20 % 2
Supply Voltage (3) to (2) VCC 50 V 1
Input Voltage (1) to (2) VIN -6 30 V 1
Output Current IO 100 mA 1
Output Current All IC (Max) 100 mA 1
Power Dissipation Pd 150 mW 2
Thermal Resistance, Junction to Ambient Air RθJA 833 °C/W Note 1: mounted on FR4 PC board with recommended pad layout 2
Operating and Storage Temperature Range Tj, TSTG -55 150 °C 2
Input Resistor R1 (NOM) R1 4.7 kΩ NOM 1
Resistor R2 (NOM) R2 22 kΩ 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: Solderable per MIL-STD-202, Method 208 • Lead Free Plating (Matte Tin Finish annealed over Alloy 42 1

CAD (KiCad official)

  • Symbol: DDTC143FE-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: ddtc143fe-7-f-etched.step / ddtc143fe-7-f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ddtc143fe-7-f.step / ddtc143fe-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 d2661de44cd9b2e1, retrieved 2026-11-05, 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