component
DTC143ECA
Public Made by Adomby adom
Changjing Digital Transistors, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownDTC143ECA
Changjing · Digital Transistors · SOT-23
DTC143ECA 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 pin of the built-in bias-resistor network (R1 nominal 4.7 kΩ, range 3.29 to 6.11 kΩ); the input voltage is rated from -10 V to +30 V, with VI(off) at most 0.5 V and VI(on) at least 3 V. |
| 2 | GND | power_in | Ground reference pin for the transistor; the datasheet gives no separate electrical limit for this pin. |
| 3 | OUT | output | Output pin of the NPN digital transistor, rated for an output current of 100 mA maximum, with VO(on) at most 0.3 V at IO/II = 10 mA / 0.5 mA and a supply voltage VCC up to 50 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SOT-23 |
| Category | Transistors/Thyristors |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
DTC143ECA - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
dtc143eca-etched.step/dtc143eca-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);dtc143eca.step/dtc143eca.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (3 pp, sha256
02b7a504bff7934b, retrieved 2026-10-09, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).