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DTC143EUAT106

Public Made by Adom

by adom

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

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DTC143EUAT106

ROHM Semicon · Digital Transistors · SOT-323

DTC143EUAT106 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 NPN transistor; R2 (4.7kΩ typ.) is connected between this pin and the base.
2 IN (BASE) input Input via built-in 4.7kΩ base resistor R1; input voltage range -10 to 30 V, VI(off) max 0.5 V and VI(on) min 3.0 V.
3 OUT (COLLECTOR) output Open-collector output of the built-in NPN transistor; output current up to 100 mA and supply voltage VCC up to 50 V.

Key specifications

Parameter Value
Manufacturer ROHM Semicon
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 voltage (on) VI(on) 3 V VO = 0.3V, IO = 20mA 2
Input voltage (off) VI(off) 0.5 V VCC = 5V, IO = 100μA 2
Output voltage VO(on) 100 300 mV IO / II = 10mA / 0.5mA 2
Input current II 1.8 mA VI = 5V 2
Output current (off) 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 2
Input voltage VIN -10 30 V 2
Output current IO 100 mA 2
Collector current IC(MAX) 100 mA 2
Power dissipation (DTC143EUA, SOT-323) PD 200 mW Each terminal mounted on a reference land 2
Junction temperature Tj 150 ℃ 2
Range of storage temperature Tstg -55 150 ℃ 2

CAD (KiCad official)

  • Symbol: DTC143EUAT106
  • Footprint: Package_TO_SOT_SMD:SOT-323_SC-70
  • 3D model: SOT-323 (KiCad packages3D, STEP)
  • 3D model files: dtc143euat106-etched.step / dtc143euat106-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); dtc143euat106.step / dtc143euat106.glb are the bare package body.

Provenance

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

  • Datasheet: ROHM Semicon datasheet (13 pp, sha256 0cf34aded187fc28, retrieved 2026-10-16, tier: lcsc)
  • 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