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DTC123JUA

Public Made by Adom

by adom

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

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DTC123JUA

Changjing · Digital Transistors · SOT-323

DTC123JUA from Changjing, 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 pin of the built-in bias-resistor inverter; the datasheet's maximum input voltage VIN is -5 V to +12 V.
2 GND power_in Ground reference pin; the datasheet gives no separate voltage or current rating for this pin.
3 OUT output Output pin; the maximum output current IO is 100 mA, and the SOT-323 (UA) power dissipation rating is 200 mW.

Key specifications

Parameter Value
Manufacturer Changjing
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 (off) VI(off) 0.5 V VCC=5V,IO=100µA 2
Input voltage (on) VI(on) 1.1 V VO=0.3V,IO=5mA 2
Output voltage (on) VO(on) 0.1 0.3 V IO/II=5mA/0.25mA 2
Input current II 3.6 mA VI=5V 2
Output current (off) IO(off) 0.5 μA VCC=50V,VI=0 2
DC current gain GI 80 VO=5V,IO=10mA 2
Input resistance R1 1.54 2.2 2.86 kΩ 2
Resistance ratio R2/R1 17 21 26 2
Transition frequency fT 250 MHz VO=10V,IO=5mA,f=100MHz 2
Supply voltage VCC 50 V Ta=25℃ unless otherwise noted 2
Input voltage VIN -5 12 V Ta=25℃ unless otherwise noted 2
Output current IO 100 mA Ta=25℃ unless otherwise noted 2
Power dissipation (SOT-323 column UA) PD 200 mW Ta=25℃ unless otherwise noted; column UA of the printed PD row (100 150 200 200 200 300 for M E UA KA CA SA) 2
Operation junction and storage temperature range TJ,Tstg -55 150 ℃ Ta=25℃ unless otherwise noted 2

CAD (KiCad official)

  • Symbol: DTC123JUA
  • Footprint: Package_TO_SOT_SMD:SOT-323_SC-70
  • 3D model: SOT-323 (KiCad packages3D, STEP)
  • 3D model files: dtc123jua-etched.step / dtc123jua-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); dtc123jua.step / dtc123jua.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (15 pp, sha256 87b8e288c3b9084b, 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