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DTC124ESA

Public Made by Adom

by adom

Changjing Digital Transistors, TO-92S. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Contents

README

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DTC124ESA

Changjing · Digital Transistors · TO-92S

DTC124ESA from Changjing, in a TO-92S. 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 GND power_in Ground pin for the TO-92S variant; on this package GND is pin 1, which differs from the pin order of the other DTC124E variants (IN on pin 1).
2 OUT output Output pin; the maximum output current IO is 30 mA and the peak collector current ICM is 100 mA, with supply VCC up to 50 V.
3 IN input Input pin with built-in bias resistor R1 (typ. 22 kΩ, range 15.4 to 28.6 kΩ); input voltage VIN is rated from -10 V to +40 V.

Key specifications

Parameter Value
Manufacturer Changjing
Package TO-92S
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
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 (DTC124ESA, TO-92S column) PD 300 mW 2
Operation Junction and Storage Temperature Range TJ,Tstg -55 150 ℃ 2
Input voltage (off) VI(off) 0.5 V VCC=5V,IO=100µA 2
Input voltage (on) VI(on) 3 V VO=0.2V,IO=5mA 2
Output voltage VO(on) 0.1 0.3 V IO/II=10mA/0.5mA 2
Input current II 0.36 mA VI=5V 2
Output current (off) IO(off) 0.5 µA 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

CAD (KiCad official)

  • Symbol: DTC124ESA
  • Footprint: Package_TO_SOT_THT:TO-92_Inline
  • 3D model: TO-92S (KiCad packages3D, STEP)
  • 3D model files: dtc124esa-etched.step / dtc124esa-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); dtc124esa.step / dtc124esa.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (15 pp, sha256 9ca61cbeee8443e0, retrieved 2026-10-20, 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