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DDTC143FUA-7-F
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Diodes Incorporated Digital Transistors, SOT-323. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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DDTC143FUA-7-F
Diodes Incorporated · Digital Transistors · SOT-323
DDTC143FUA-7-F from Diodes Incorporated, 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 (base) through R1 = 4.7kΩ nominal; VIN rated -6 to +30 V, VIN(off) min 0.3 V at VCC = 5V, VIN(on) max 1.3 V at IOUT = 3mA. |
| 2 | GND | power_in | Ground (emitter) reference; R2 = 22kΩ nominal connects from the base node to this pin, and VCC and VIN are specified relative to it. |
| 3 | OUT | output | Output (collector) of the NPN transistor; VCC rated 50 V, IOUT 100 mA max, IOUT(off) max 0.5 μA at VCC = 50V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-323 |
| Category | Transistors/Thyristors |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
DDTC143FUA-7-F - Footprint:
Package_TO_SOT_SMD:SOT-323_SC-70 - 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files:
ddtc143fua-7-f-etched.step/ddtc143fua-7-f-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ddtc143fua-7-f.step/ddtc143fua-7-f.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (7 pp, sha256
e177393e190cb264, retrieved 2026-10-09, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).
# DDTC143FUA-7-F
**Diodes Incorporated** · Digital Transistors · SOT-323
DDTC143FUA-7-F from Diodes Incorporated, 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 (base) through R1 = 4.7kΩ nominal; VIN rated -6 to +30 V, VIN(off) min 0.3 V at VCC = 5V, VIN(on) max 1.3 V at IOUT = 3mA. |
| 2 | GND | power_in | Ground (emitter) reference; R2 = 22kΩ nominal connects from the base node to this pin, and VCC and VIN are specified relative to it. |
| 3 | OUT | output | Output (collector) of the NPN transistor; VCC rated 50 V, IOUT 100 mA max, IOUT(off) max 0.5 μA at VCC = 50V. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-323 |
| Category | Transistors/Thyristors |
| Pins | 3 |
## CAD (KiCad official)
- Symbol: `DDTC143FUA-7-F`
- Footprint: `Package_TO_SOT_SMD:SOT-323_SC-70`
- 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files: `ddtc143fua-7-f-etched.step` / `ddtc143fua-7-f-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ddtc143fua-7-f.step` / `ddtc143fua-7-f.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Diodes Incorporated datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8560095158566731776) (7 pp, sha256 `e177393e190cb264`, retrieved 2026-10-09, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/ddtc143fua-7-f-datasheet.pdf)