# SP3003-04ATG

**LITTELFUSE INC.** · Global Sourcing Parts · MSOP-10

SP3003-04ATG from LITTELFUSE INC., in a MSOP-10. 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/O 1 | passive | ESD-protected I/O channel 1 with ±8 kV contact and ±15 kV air IEC 61000-4-2 protection and 0.65 pF typical capacitance at 1.65 V bias. |
| 2 | I/O 2 | passive | ESD-protected I/O channel 2 with ±8 kV contact and ±15 kV air IEC 61000-4-2 protection and 0.65 pF typical capacitance at 1.65 V bias. |
| 3 | VCC | power_in | Positive supply rail connection for the steering diodes, with a reverse standoff voltage of 6 V maximum. |
| 4 | I/O 3 | passive | ESD-protected I/O channel 3 with ±8 kV contact and ±15 kV air IEC 61000-4-2 protection and 0.65 pF typical capacitance at 1.65 V bias. |
| 5 | I/O 4 | passive | ESD-protected I/O channel 4 with ±8 kV contact and ±15 kV air IEC 61000-4-2 protection and 0.65 pF typical capacitance at 1.65 V bias. |
| 6 | NC | unconnected | No internal connection. |
| 7 | NC | unconnected | No internal connection. |
| 8 | GND | power_in | Ground reference for the diode array. |
| 9 | NC | unconnected | No internal connection. |
| 10 | NC | unconnected | No internal connection. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | LITTELFUSE INC. |
| Package | MSOP-10 |
| Category | Global Sourcing Parts |
| Pins | 10 |

## 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 | Lead Plating Matte Tin (SC70-x, MSOP-10) Pre-Plated Frame (SOT5x3, µDFN-6) | 3 |

## CAD (KiCad official)

- Symbol: `SP3003-04ATG`
- Footprint: `Package_SO:MSOP-10_3x3mm_P0.5mm`
- 3D model: MSOP-10 (KiCad packages3D, STEP)
- 3D model files: `sp3003-04atg-etched.step` / `sp3003-04atg-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sp3003-04atg.step` / `sp3003-04atg.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [LITTELFUSE INC. datasheet](docs/sp3003-04atg-datasheet.pdf) (7 pp, sha256 `b193ddaf5bb594ea`, retrieved 2026-10-27, 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/sp3003-04atg-datasheet.pdf)