# SP1001-05XTG

**Littelfuse** · ESD And Surge Protection (TVS/ESD) · SOT-563

SP1001-05XTG from Littelfuse, in a SOT-563. 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 | Protected I/O channel connected through steering diodes to the common ground node, protecting against IEC 61000-4-2 ESD of ±15kV contact and ±30kV air with about 8pF typical capacitance. |
| 2 | GND | power_in | Common ground/return pin of the SP1001-05 array, which the I/O pins' diodes steer ESD current to. |
| 3 | I/O2 | passive | Protected I/O channel connected through steering diodes to the common ground node, protecting against IEC 61000-4-2 ESD of ±15kV contact and ±30kV air with about 8pF typical capacitance. |
| 4 | I/O3 | passive | Protected I/O channel connected through steering diodes to the common ground node, protecting against IEC 61000-4-2 ESD of ±15kV contact and ±30kV air with about 8pF typical capacitance. |
| 5 | I/O4 | passive | Protected I/O channel connected through steering diodes to the common ground node, protecting against IEC 61000-4-2 ESD of ±15kV contact and ±30kV air with about 8pF typical capacitance. |
| 6 | I/O5 | passive | Protected I/O channel connected through steering diodes to the common ground node, protecting against IEC 61000-4-2 ESD of ±15kV contact and ±30kV air with about 8pF typical capacitance. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Littelfuse |
| Package | SOT-563 |
| Category | Circuit Protection |
| Pins | 6 |

## CAD (KiCad official)

- Symbol: `SP1001-05XTG`
- Footprint: `Package_TO_SOT_SMD:SOT-563`
- 3D model: SOT-563 (KiCad packages3D, STEP)
- 3D model files: `sp1001-05xtg-etched.step` / `sp1001-05xtg-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sp1001-05xtg.step` / `sp1001-05xtg.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Littelfuse datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588901704557604864) (7 pp, sha256 `009191d4f8096725`, 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/sp1001-05xtg-datasheet.pdf)