component
DTC143EUA
Public Made by Adomby adom
Changjing Digital Transistors, SOT-323. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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DTC143EUA
Changjing · Digital Transistors · SOT-323
DTC143EUA from Changjing, 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 | Input of the inverter with a built-in input resistor of 4.7 kΩ typical (3.29 kΩ min, 6.11 kΩ max), with input voltage rated from -10 V to +30 V and input current 1.8 mA max at VI = 5 V. |
| 2 | GND | power_in | Ground reference pin for the NPN digital transistor and its built-in bias resistors. |
| 3 | OUT | output | Open-collector NPN output, rated for an output current of 100 mA max and a supply voltage VCC of 50 V max, with VO(on) of 0.3 V max at IO/II = 10 mA / 0.5 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SOT-323 |
| Category | Transistors/Thyristors |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
DTC143EUA - Footprint:
Package_TO_SOT_SMD:SOT-323_SC-70 - 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files:
dtc143eua-etched.step/dtc143eua-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);dtc143eua.step/dtc143eua.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (15 pp, sha256
1d27e3c63bd705ab, 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).
# DTC143EUA
**Changjing** · Digital Transistors · SOT-323
DTC143EUA from Changjing, 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 | Input of the inverter with a built-in input resistor of 4.7 kΩ typical (3.29 kΩ min, 6.11 kΩ max), with input voltage rated from -10 V to +30 V and input current 1.8 mA max at VI = 5 V. |
| 2 | GND | power_in | Ground reference pin for the NPN digital transistor and its built-in bias resistors. |
| 3 | OUT | output | Open-collector NPN output, rated for an output current of 100 mA max and a supply voltage VCC of 50 V max, with VO(on) of 0.3 V max at IO/II = 10 mA / 0.5 mA. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SOT-323 |
| Category | Transistors/Thyristors |
| Pins | 3 |
## CAD (KiCad official)
- Symbol: `DTC143EUA`
- Footprint: `Package_TO_SOT_SMD:SOT-323_SC-70`
- 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files: `dtc143eua-etched.step` / `dtc143eua-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `dtc143eua.step` / `dtc143eua.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Changjing datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586176252851441664) (15 pp, sha256 `1d27e3c63bd705ab`, retrieved 2026-10-09, 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](docs/dtc143eua-datasheet.pdf)