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AD-DTC143ZCA

Public Made by Adom

by adom

Changjing Digital Transistors, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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AD-DTC143ZCA

Changjing · Digital Transistors · SOT-23

AD-DTC143ZCA from Changjing, in a SOT-23. 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 connected through built-in R1 (4.7 kΩ typ) to the base; input voltage range is -5 V to 30 V, with VI(off) ≥ 0.5 V and VI(on) ≤ 1.3 V.
2 GND power_in Ground, connected to the emitter and to the built-in R2 base-emitter resistor.
3 OUT output Open-collector output of the NPN transistor, rated for up to 100 mA output current and 50 V supply voltage.

Key specifications

Parameter Value
Manufacturer Changjing
Package SOT-23
Category Triode/MOS Tube/Transistor
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)) VI(off) 0.5 V VCC = 5V, IO = 100µA 3
Input voltage (VI(on)) VI(on) 1.3 V VO = 0.3V, IO = 5mA 3
Output voltage VO(on) 0.1 0.3 V IO/II = 5mA/0.25mA 3
Input current II 1.8 mA VI = 5V 3
Output current (off) IO(off) 0.5 µA VCC = 50V, VI = 0V 3
DC current gain GI 80 VO = 5V, IO = 10mA 3
Input resistance R1 3.29 4.7 6.11 kΩ 3
Resistance ratio R2 /R1 8 10 12 3
Supply voltage VCC 50 V 3
Input voltage VIN -5 30 V 3
Output current IO 100 mA Maximum allowed temperature Tj = 25°C (footnote 1) 3
Maximum power dissipation (SOT-23, CA column) PD 200 mW Maximum allowed temperature Tj = 25°C (footnote 1) 3
Operating junction and storage temperature range Tj, Tstg -55 150 °C 3

CAD (KiCad official)

  • Symbol: AD-DTC143ZCA
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: ad-dtc143zca-etched.step / ad-dtc143zca-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ad-dtc143zca.step / ad-dtc143zca.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (17 pp, sha256 fb1e9394d33b7c01, retrieved 2026-10-30, 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