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DTA143EUAFRAT106

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ROHM Semicon Digital Transistors, SOT-323. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componenttransistorsdta143euafrat106factory-2.0.0extractor-text

Changed since verified DTA143EUAFRAT106

by Ray · last 31 Oct 2026 · 1 record · files changed since
SymbolFootprint3D modelPins

Verification log 1 record

31 Oct 2026RayPublished by the parts factory: tier mfr, 3 pinschanged since
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: DTA143EUAFRAT106 · SOT-323 · 3 pins
  • ✓copper: 3 copper pads, none touching another net
  • ✓datasheet: all 3 pin names found in the 7-page datasheet
  • •distributor (warn): no ['digikey', 'mouser'] number
  • ✓family: SOT-323_SC-70
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-l98zyge7/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 3 pins = 3 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 3 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files! dta143euafrat106.kicad_sym✓ dta143euafrat106.kicad_mod✓ dta143euafrat106.step
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Contents

README

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DTA143EUAFRAT106

ROHM Semicon · Digital Transistors · SOT-323

DTA143EUAFRAT106 from ROHM Semicon, 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 GND (EMITTER) power_in Ground (+) / emitter of the built-in PNP transistor, connected to R2; supply voltage VCC max is -50V.
2 IN (BASE) input Input (base) through built-in R1 = 4.7kΩ, with input voltage range -30 to 10 V, VI(off) max -0.5V and VI(on) min -3.0V.
3 OUT (COLLECTOR) output Output (collector) of the built-in transistor, rated for output current of -100mA max and IO(off) max -500nA at VCC = -50V.

Key specifications

Parameter Value
Manufacturer ROHM Semicon
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) VI(off) -0.5 V VCC = -5V, IO = -100μA 2
Input voltage (on) VI(on) -3 V VO = -0.3V, IO = -20mA 2
Output voltage VO(on) -100 -300 mV IO = -10mA, II = -0.5mA 2
Input current II -1.8 mA VI = -5V 2
Output current IO(off) -500 nA VCC = -50V, VI = 0V 2
DC current gain GI 30 VO = -5V, IO = -10mA 2
Input resistance R1 3.29 4.7 6.11 kΩ 2
Resistance ratio R2/R1 0.8 1 1.2 2
Supply voltage VCC -50 V Ta = 25°C 2
Input voltage VIN -30 10 V Ta = 25°C 2
Output current IO -100 mA Ta = 25°C 2
Collector current IC(MAX) -100 mA Ta = 25°C 2
Power dissipation PD 200 mW Ta = 25°C, each terminal mounted on a reference land 2
Junction temperature Tj 150 ℃ Ta = 25°C 2
Storage temperature range Tstg -55 150 ℃ Ta = 25°C 2
Transition frequency fT 250 MHz VCE = -10V, IE = 5mA, f = 100MHz 2

CAD (KiCad official)

  • Symbol: DTA143EUAFRAT106
  • Footprint: Package_TO_SOT_SMD:SOT-323_SC-70
  • 3D model: SOT-323 (KiCad packages3D, STEP)
  • 3D model files: dta143euafrat106-etched.step / dta143euafrat106-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); dta143euafrat106.step / dta143euafrat106.glb are the bare package body.

Provenance

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

  • Datasheet: ROHM Semicon datasheet (7 pp, sha256 8c85b7d046fbfd65, retrieved 2026-10-31, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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