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Contents

README

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AD-DTA114YCA

Changjing · Digital Transistors · SOT-23

AD-DTA114YCA 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 (7-13 kΩ) to the base; input voltage range is -40 V to +6 V, with VI(off) of -0.3 V min and VI(on) of -1.4 V max.
2 GND power_in Ground/common (emitter) pin, shown as GND(+) in the equivalent circuit, also tied to R2.
3 OUT output Open-collector output of the PNP digital transistor, rated for output current of -70 mA (peak -100 mA) and supply voltage of -50 V.

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 (off) VI(off) -0.3 V VCC = -5V, IO = -100µA 3
Input voltage (on) VI(on) -1.4 V VO = -0.3V, IO = -1mA 3
Output voltage VO(on) -0.3 V IO/II = -5mA/-0.25mA 3
Input current II -0.88 mA VI = -5V 3
Output current (off) IO(off) -0.5 µA VCC = -50V, VI = 0V 3
DC current gain GI 68 VO = -5V, IO = -5mA 3
Input resistance R1 7 10 13 kΩ 3
Resistance ratio R2/R1 3.7 4.7 5.7 3
Transition frequency fT 250 MHz VO = -10V, IO = -5mA, f = 100MHz 3
Supply voltage Vcc -50 V Tj = 25°C 3
Input voltage VIN -40 6 V Tj = 25°C 3
Output current IO -70 mA Tj = 25°C 3
Peak collector current ICM -100 mA Tj = 25°C 3
Maximum power dissipation PD 200 mW CA package, Tj = 25°C 3
Operating junction and storage temperature range Tj, Tstg -55 150 °C 3

CAD (KiCad official)

  • Symbol: AD-DTA114YCA
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: ad-dta114yca-etched.step / ad-dta114yca-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ad-dta114yca.step / ad-dta114yca.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (17 pp, sha256 39179db393e59db2, retrieved 2026-10-31, 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