# CC6903SO-30A

**Cross chip** · Current Sensors · SOP-8

CC6903SO-30A from Cross chip, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | IP+ | input | Primary positive terminal of current sampling path for -30A to +30A input with 1.5-1.8mΩ series resistance. |
| 2 | IP+ | input | Parallel positive terminal of current sampling path internally connected to pin 1 for low-impedance current input. |
| 3 | IP- | input | Primary negative terminal of current sampling path for -30A to +30A input with 1.5-1.8mΩ series resistance. |
| 4 | IP- | input | Parallel negative terminal of current sampling path internally connected to pin 3 for low-impedance current return. |
| 5 | GND | power_in | Ground reference providing negative supply rail and analog circuit reference potential. |
| 6 | NC | unconnected | No connection pin that must be left floating and not connected to any circuit. |
| 7 | OUT | output | Analog voltage output ranging from 0.33V to 2.97V proportional to input current from -30A to +30A at 44mV/A sensitivity. |
| 8 | VCC | power_in | Positive supply voltage requiring 3.0V to 3.6V nominal with 0.1µF bypass capacitor to ground. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Cross chip |
| Package | SOP-8 |
| Category | Magnetic Sensors |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `CC6903SO-30A`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `cc6903so-30a-etched.step` / `cc6903so-30a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cc6903so-30a.step` / `cc6903so-30a.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Cross chip datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588884810698010624) (12 pp, sha256 `4caefefced8b515b`, retrieved 2026-09-22, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (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/cc6903so-30a-datasheet.pdf)