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DTC143EKA

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

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Datasheet

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Contents

README

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DTC143EKA

Foshan Blue Rocket Elec · Digital Transistors · SOT-23

DTC143EKA from Foshan Blue Rocket Elec, 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 Base input Base input of the NPN digital transistor, with built-in bias resistor R1 (4.7 kΩ typical, 3.29 to 6.11 kΩ); the datasheet gives VI(off) max 0.5 V at VCC=5.0 V, VI(on) 3.0 V at VO=0.3 V and IO=20 mA, and input current II max 1.8 mA at VI=5.0 V.
2 Emitter passive Emitter terminal of the NPN digital transistor, the common reference for the output stage; the datasheet does not state a separate pin-level limit for this pin.
3 Collector passive Collector output of the NPN digital transistor, rated for output voltage VCC up to 50 V (the adjacent 30 V row is ambiguous), output current IO 100 mA maximum, and VO(on) of 0.3 V max at IO=10 mA, II=0.5 mA.

Key specifications

Parameter Value
Manufacturer Foshan Blue Rocket Elec
Package SOT-23
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
DC Current Gain GI 20 VO=5.0V IO=10mA 2
Input Voltage(ON) VI(on) 3 V VO=0.3V IO=20mA 2
Input Voltage(OFF) VI(off) 0.5 V VCC=5.0V IO=0.1mA 2
Input Voltage II 1.8 mA VI=5.0V 2
Output Cut-off Current IO(off) 0.5 μA VCC=50V VI=0 2
Output Voltage VO(on) 0.1 0.3 V IO=10mA II=0.5mA 2
Resistance1 R1 3.29 4.7 6.11 KΩ 2
Resistance Ratio R2/R1 0.8 1 1.2 2
Transition Frequency fT 250 MHz VCE=10V IE=-5.0Ma f=100MHz 2
Output Voltage VCC 50 V Ta=25℃ 2
Input Voltage VIN -10 30 V Ta=25℃ 2
Output Current ICM 100 mA Ta=25℃ 2
Power Dissipation PC 200 mW Ta=25℃ 2
Junction Temperature Tj 150 ℃ Ta=25℃ 2
Storage Temperature Range Tstg -55 150 ℃ Ta=25℃ 2

CAD (KiCad official)

  • Symbol: DTC143EKA
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: dtc143eka-etched.step / dtc143eka-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); dtc143eka.step / dtc143eka.glb are the bare package body.

Provenance

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

  • Datasheet: Foshan Blue Rocket Elec datasheet (6 pp, sha256 8b5001a32ce1e7bd, retrieved 2026-10-19, 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