# SP3003-04JTG

**Littelfuse** · ESD And Surge Protection (TVS/ESD) · SC-70-6

SP3003-04JTG from Littelfuse, in a SC-70-6. 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 | I/O 1 | passive | ESD-protected signal line with ultra-low-capacitance rail-to-rail diodes and a zener clamp, rated for ±8 kV contact and ±15 kV air discharge per IEC 61000-4-2 with 0.65 pF typical I/O capacitance. |
| 2 | GND | power_in | Ground reference for the protection diodes; the datasheet specifies no separate limit for this pin. |
| 3 | I/O 2 | passive | ESD-protected signal line with ultra-low-capacitance rail-to-rail diodes and a zener clamp, rated for ±8 kV contact and ±15 kV air discharge per IEC 61000-4-2 with 0.65 pF typical I/O capacitance. |
| 4 | I/O 3 | passive | ESD-protected signal line with ultra-low-capacitance rail-to-rail diodes and a zener clamp, rated for ±8 kV contact and ±15 kV air discharge per IEC 61000-4-2 with 0.65 pF typical I/O capacitance. |
| 5 | VCC | power_in | Supply connection for the protection device; the datasheet characterises capacitance at VCC = 3.3 V, 5 V and floating but states no VCC voltage limit. |
| 6 | I/O 4 | passive | ESD-protected signal line with ultra-low-capacitance rail-to-rail diodes and a zener clamp, rated for ±8 kV contact and ±15 kV air discharge per IEC 61000-4-2 with 0.65 pF typical I/O capacitance. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Littelfuse |
| Package | SC-70-6 |
| Category | Circuit Protection |
| Pins | 6 |

## CAD (KiCad official)

- Symbol: `SP3003-04JTG`
- Footprint: `Package_TO_SOT_SMD:SOT-363_SC-70-6`
- 3D model: SC-70-6 (KiCad packages3D, STEP)
- 3D model files: `sp3003-04jtg-etched.step` / `sp3003-04jtg-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sp3003-04jtg.step` / `sp3003-04jtg.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/8588918493056417792) (7 pp, sha256 `350d2a0f270a07f5`, 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/sp3003-04jtg-datasheet.pdf)