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DDTC123YUA-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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DDTC123YUA-7-F
Diodes Incorporated · Digital Transistors · SOT-323
DDTC123YUA-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) pin connected through R1 (2.2kΩ nominal) to the transistor base; input voltage to pin 2 is rated -5 to +12 V for DDTC123YUA. |
| 2 | GND | power_in | Ground pin connected to the emitter and to R2 (10kΩ nominal) and serving as the reference for the 50 V maximum supply voltage (pin 3 to pin 2). |
| 3 | OUT | output | Output (collector) pin of the NPN transistor, rated for 100 mA maximum output current and 50 V maximum supply voltage (pin 3 to pin 2). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-323 |
| Category | Transistors |
| Pins | 3 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | Terminals: Finish, Matte Tin Plated Leads, Solderable per MIL-STD-202, Method 208 | 1 |
CAD (KiCad official)
- Symbol:
DDTC123YUA-7-F - Footprint:
Package_TO_SOT_SMD:SOT-323_SC-70 - 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files:
ddtc123yua-7-f-etched.step/ddtc123yua-7-f-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ddtc123yua-7-f.step/ddtc123yua-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 2026-10-27, tier: manufacturer) - 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).
# DDTC123YUA-7-F
**Diodes Incorporated** · Digital Transistors · SOT-323
DDTC123YUA-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) pin connected through R1 (2.2kΩ nominal) to the transistor base; input voltage to pin 2 is rated -5 to +12 V for DDTC123YUA. |
| 2 | GND | power_in | Ground pin connected to the emitter and to R2 (10kΩ nominal) and serving as the reference for the 50 V maximum supply voltage (pin 3 to pin 2). |
| 3 | OUT | output | Output (collector) pin of the NPN transistor, rated for 100 mA maximum output current and 50 V maximum supply voltage (pin 3 to pin 2). |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-323 |
| Category | Transistors |
| Pins | 3 |
## Materials and finish
As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | | tin | Terminals: Finish, Matte Tin Plated Leads, Solderable per MIL-STD-202, Method 208 | 1 |
## CAD (KiCad official)
- Symbol: `DDTC123YUA-7-F`
- Footprint: `Package_TO_SOT_SMD:SOT-323_SC-70`
- 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files: `ddtc123yua-7-f-etched.step` / `ddtc123yua-7-f-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ddtc123yua-7-f.step` / `ddtc123yua-7-f.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Diodes Incorporated datasheet](https://www.diodes.com/assets/Datasheets/DDTC123YUA-7-F.pdf) (7 pp, sha256 `e177393e190cb264`, retrieved 2026-10-27, tier: manufacturer)
- **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/ddtc123yua-7-f-datasheet.pdf)