# SP1005-01WTG

**Littelfuse** · ESD And Surge Protection (TVS/ESD) · 0201

SP1005-01WTG from Littelfuse, in a 0201. 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 | 1 | passive | One terminal of the back-to-back bidirectional Zener TVS, rated for 6.0 V reverse standoff (VRWM) and 10.0 A peak pulse current (tp=8/20µs) for the 0201 variant. The datasheet does not state a pin name or a separate function for this terminal. |
| 2 | 2 | passive | Other terminal of the back-to-back bidirectional Zener TVS, with the same 6.0 V reverse standoff and 10.0 A peak pulse current (tp=8/20µs) limits for the 0201 variant. The datasheet does not state a pin name or a separate function for this terminal. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Littelfuse |
| Package | 0201 |
| Category | Circuit Protection |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `SP1005-01WTG`
- Footprint: `Diode_SMD:D_0201_0603Metric`
- 3D model: 0201, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.3 mm nominal _01005_ height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files: `sp1005-01wtg-etched.step` / `sp1005-01wtg-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sp1005-01wtg.step` / `sp1005-01wtg.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/8588901704708870145) (5 pp, sha256 `03726519dd6e12bc`, retrieved 2026-10-09, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-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/sp1005-01wtg-datasheet.pdf)