# DT1446-04S-7

**Diodes Incorporated** · ESD And Surge Protection (TVS/ESD) · SOT-363

DT1446-04S-7 from Diodes Incorporated, in a SOT-363. 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 | I/O1 | passive | ESD-protected high-speed I/O channel 1, rated for ±16kV contact and ±19kV air discharge (IEC 61000-4-2) and 4.7A peak pulse current (8/20µs) to VSS. |
| 2 | VSS | power_in | Ground reference pin (VSS) for the TVS array, to which all I/O and VCC protection diodes return. |
| 3 | I/O2 | passive | ESD-protected high-speed I/O channel 2, rated for ±16kV contact and ±19kV air discharge (IEC 61000-4-2) and 4.7A peak pulse current (8/20µs) to VSS. |
| 4 | I/O3 | passive | ESD-protected high-speed I/O channel 3, rated for ±16kV contact and ±19kV air discharge (IEC 61000-4-2) and 4.7A peak pulse current (8/20µs) to VSS. |
| 5 | VCC | power_in | Supply rail protected by the array, with 6V maximum DC operating voltage, 5.0V reverse working voltage and ±30kV IEC 61000-4-2 ESD rating to VSS. |
| 6 | I/O4 | passive | ESD-protected high-speed I/O channel 4, rated for ±16kV contact and ±19kV air discharge (IEC 61000-4-2) and 4.7A peak pulse current (8/20µs) to VSS. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-363 |
| Category | Circuit Protection |
| Pins | 6 |

## CAD (KiCad official)

- Symbol: `DT1446-04S-7`
- Footprint: `Package_TO_SOT_SMD:SOT-363_SC-70-6`
- 3D model: SOT-363 (KiCad packages3D, STEP)
- 3D model files: `dt1446-04s-7-etched.step` / `dt1446-04s-7-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `dt1446-04s-7.step` / `dt1446-04s-7.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/8588905250472538112) (5 pp, sha256 `009b14499fe0fd31`, retrieved 2026-10-13, 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/dt1446-04s-7-datasheet.pdf)