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DTC124ECA

Public Made by Adom

by adom

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

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DTC124ECA

Yangzhou Yangjie Elec Tech · Digital Transistors · SOT-23

DTC124ECA from Yangzhou Yangjie Elec Tech, 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 pin connected through built-in R1 (15.4 to 28.6 kΩ) to the transistor base; input voltage rated -10 V to +40 V.
2 GND power_in Ground pin connected to the NPN emitter and to R2 of the built-in bias network.
3 OUT output Open-collector output of the NPN transistor, rated 100 mA maximum output current and 50 V supply voltage.

Key specifications

Parameter Value
Manufacturer Yangzhou Yangjie Elec Tech
Package SOT-23
Category Transistors
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
Supply Voltage VCC 50 V 1
Input Voltage VIN -10 40 V 1
Output Current IO 100 mA 1
Power Dissipation PD 200 mW 1
Junction Temperature Tj 150 ℃ 1
Storage Temperature TSTG -55 150 ℃ 1
Input voltage (off) VI(off) 0.5 V VCC=5V,Ic=100uA 2
Input voltage (on) VI(on) 3 V V0=0.2V,Ic=5mA 2
Output voltage (on) Vo(on) 0.3 V Io /Ii =10mA/0.5 mA 2
Input current II 0.36 mA VI=5V 2
Output current (off) IO(off) 0.5 uA VCC=50V, Vi=0 2
DC current gain GI 56 Vo=5V, Io =5mA 2
Input resistance R1 15.4 22 28.6 kΩ 2
Resistance ratio R2/R1 0.8 1 1.2 2
Transition frequency fT 250 MHz Vo=10V,IO=-5mA,f=100MHz 2

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin ● Terminals: Tin plated leads, solderable per J-STD-002 and JESD22-B102 1

CAD (KiCad official)

  • Symbol: DTC124ECA
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: dtc124eca-etched.step / dtc124eca-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); dtc124eca.step / dtc124eca.glb are the bare package body.

Provenance

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

  • Datasheet: Yangzhou Yangjie Elec Tech datasheet (5 pp, sha256 ad8b3b61f1f08b85, retrieved 2026-11-04, 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