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DTC123YUAT106

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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DTC123YUAT106

ROHM Semicon · Digital Transistors · SOT-323

DTC123YUAT106 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, connected to R2 and the emitter.
2 IN (BASE) input Input (base) through built-in R1 = 2.2kΩ; input voltage range -5 to 12 V, VI(off) max 0.3 V and VI(on) min 3.0 V.
3 OUT (COLLECTOR) output Output (collector) of the digital transistor; supply voltage VCC max 50 V and output current IO max 100 mA.

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 (VI(on)) VI(on) 3 V VO = 0.3V, IO = 20mA 2
Input voltage (VI(off)) VI(off) 0.3 V VCC = 5V, IO = 100μA 2
Output voltage (VO(on)) VO(on) 100 300 mV IO = 10mA, II = 0.5mA 2
Input current II 3.8 mA VI = 5V 2
Output current (IO(off)) IO(off) 500 nA VCC = 50V, VI = 0V 2
DC current gain GI 33 - VO = 5V, IO = 10mA 2
Input resistance R1 1.54 2.2 2.86 kΩ 2
Resistance ratio R2/R1 3.6 4.5 5.5 - 2
Supply voltage VCC 50 V 2
Input voltage VIN -5 12 V 2
Output current IO 100 mA 2
Collector current IC(MAX) 100 mA 2
Power dissipation (DTC123YUA, 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: DTC123YUAT106
  • Footprint: Package_TO_SOT_SMD:SOT-323_SC-70
  • 3D model: SOT-323 (KiCad packages3D, STEP)
  • 3D model files: dtc123yuat106-etched.step / dtc123yuat106-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); dtc123yuat106.step / dtc123yuat106.glb are the bare package body.

Provenance

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

  • Datasheet: ROHM Semicon datasheet (10 pp, sha256 380329afac921baa, retrieved 2026-10-17, 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