component
DTC143ZUA
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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DTC143ZUA
Changjing · Digital Transistors · SOT-323
DTC143ZUA 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 | Base input of the built-in bias-resistor digital transistor, rated for an input voltage of -5 V to +30 V with R1 = 4.7 kΩ nominal (3.29 to 6.11 kΩ). |
| 2 | GND | power_in | Common ground reference (emitter) for the NPN digital transistor; the datasheet gives no separate electrical limit for this pin. |
| 3 | OUT | output | Collector output of the NPN digital transistor, rated for 100 mA maximum output current and a 0.3 V maximum on-state output voltage at IO/II = 5 mA/0.25 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SOT-323 |
| Category | Transistors/Thyristors |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
DTC143ZUA - Footprint:
Package_TO_SOT_SMD:SOT-323_SC-70 - 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files:
dtc143zua-etched.step/dtc143zua-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);dtc143zua.step/dtc143zua.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (15 pp, sha256
337a36c9d1bbebd8, 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).
# DTC143ZUA
**Changjing** · Digital Transistors · SOT-323
DTC143ZUA 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 | Base input of the built-in bias-resistor digital transistor, rated for an input voltage of -5 V to +30 V with R1 = 4.7 kΩ nominal (3.29 to 6.11 kΩ). |
| 2 | GND | power_in | Common ground reference (emitter) for the NPN digital transistor; the datasheet gives no separate electrical limit for this pin. |
| 3 | OUT | output | Collector output of the NPN digital transistor, rated for 100 mA maximum output current and a 0.3 V maximum on-state output voltage at IO/II = 5 mA/0.25 mA. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SOT-323 |
| Category | Transistors/Thyristors |
| Pins | 3 |
## CAD (KiCad official)
- Symbol: `DTC143ZUA`
- Footprint: `Package_TO_SOT_SMD:SOT-323_SC-70`
- 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files: `dtc143zua-etched.step` / `dtc143zua-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `dtc143zua.step` / `dtc143zua.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/8588885085693358080) (15 pp, sha256 `337a36c9d1bbebd8`, 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/dtc143zua-datasheet.pdf)