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DTC144EUA

Public Made by Adom

by adom

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

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DTC144EUA

CBI · Digital Transistors · SOT-323

DTC144EUA from CBI, 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 Base input of the built-in bias-resistor digital transistor; input voltage is rated from -10 V to +40 V per the maximum ratings.
2 GND power_in Ground reference pin for the device; the datasheet gives no separate numeric limit for this pin.
3 OUT output Collector output of the NPN digital transistor; output current is rated at 30 mA (peak collector current 100 mA) with supply voltage up to 50 V.

Key specifications

Parameter Value
Manufacturer CBI
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) 3 V VO=0.3V,IO=2mA 2
Output voltage VO(on) 0.3 V IO/II=10mA/0.5mA 2
Input current II 0.18 mA VI=5V 2
Output current IO(off) 0.5 µA VCC=50V,VI=0 2
DC current gain GI 68 VO=5V,IO=5mA 2
Input resistance (built-in R1, nominal 47 kΩ as printed) R1 32.9 47 61.1 kΩ 2
Resistance ratio R2/R1 0.8 1 1.2 2
Supply Voltage VCC 50 V 2
Input Voltage VIN -10 40 V 2
Output Current IO 30 mA 2
Peak Collector Current ICM 100 mA 2
Power Dissipation (UA variant) PD 200 mW 2
Junction Temperature Tj 150 ℃ 2
Storage Temperature Tstg -55 150 ℃ 2
Transition frequency fT 250 MHz VO=10V,IO=5mA,f=100MHz 2

CAD (KiCad official)

  • Symbol: DTC144EUA
  • Footprint: Package_TO_SOT_SMD:SOT-323_SC-70
  • 3D model: SOT-323 (KiCad packages3D, STEP)
  • 3D model files: dtc144eua-etched.step / dtc144eua-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); dtc144eua.step / dtc144eua.glb are the bare package body.

Provenance

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

  • Datasheet: CBI datasheet (7 pp, sha256 61f5dddc973b44c9, 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