# NUP4301MR6T1G

**TECH PUBLIC** · ESD And Surge Protection (TVS/ESD) · SOT-23-6

NUP4301MR6T1G from TECH PUBLIC, in a SOT-23-6. 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 | IO | passive | I/O protected line with ultra-low capacitance of 1 pF max to GND, 70V working voltage. |
| 2 | VN | power_in | Negative rail of the diode array, connected to ground (GND) as the reference for I/O capacitance. |
| 3 | IO | passive | I/O protected line with ultra-low capacitance of 1 pF max to GND, 70V working voltage. |
| 4 | IO | passive | I/O protected line with ultra-low capacitance of 1 pF max to GND, 70V working voltage. |
| 5 | VP | passive | Positive rail of the diode array to which the steering diodes of the I/O lines are clamped; 70V maximum reverse working voltage. |
| 6 | IO | passive | I/O protected line with ultra-low capacitance of 1 pF max to GND, 70V working voltage. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TECH PUBLIC |
| Package | SOT-23-6 |
| Category | Circuit Protection |
| Pins | 6 |

## CAD (KiCad official)

- Symbol: `NUP4301MR6T1G`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files: `nup4301mr6t1g-etched.step` / `nup4301mr6t1g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `nup4301mr6t1g.step` / `nup4301mr6t1g.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [TECH PUBLIC datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590268545386123264) (4 pp, sha256 `1ba7724ce1c88576`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (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/nup4301mr6t1g-datasheet.pdf)