CC6903SO-10A 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+	passive	Primary sense-current positive terminal. Internally tied to pin 2; both should be connected to the current path input. Low-resistance (~1.5 mΩ) primary conductor rated for up to ±30 A DC (with 100 A / 100 ms surge) and isolated 100 VAC from the signal pins.
2	IP+	passive	Primary sense-current positive terminal. Internally tied to pin 1; both should be connected to the current path input.
3	IP-	passive	Primary sense-current negative terminal. Internally tied to pin 4; both should be connected to the current path output.
4	IP-	passive	Primary sense-current negative terminal. Internally tied to pin 3; both should be connected to the current path output.
5	GND	power_in	Signal-side device ground (0 V) reference for VCC and OUT.
6	NC	unconnected	No connect. Must be left floating (需悬空).
7	OUT	output	Ratiometric analog voltage output. Quiescent (IP = 0 A) output = VCC/2 (typ 1.65 V @ VCC=3.3 V); VOUT = VCC/2 + 0.132 × IP(A) for the -10A variant. Linear range 0.33-2.97 V, source current 400 µA, sink current 30 mA, load ≥20 kΩ, load capacitance ≤1 nF.
8	VCC	power_in	Supply voltage input. Recommended 3.0-3.6 V (absolute max 7 V). Typical ICC ≈ 5 mA (max 8 mA). Decouple with 0.1 µF ceramic to GND close to the pin.

Key specifications

Parameter	Value
Manufacturer	Cross chip
Package	SOP-8
Category	Sensor
Pins	8

Ordering variants

CC6903SO-10A
CC6903SO-10ACC6903SO-20A
CC6903SO-10ACC6903SO-30A

CAD (KiCad official)

Symbol: CC6903SO-10A
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOP-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`cc6903so-10a.step`	122 KB	You want the bare part, or you mark your own boards.
`cc6903so-10a-etched.step`	2.8 MB	You want the part with `CC6903SO-10A` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 645 faces against 147 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

Datasheet: Cross chip datasheet (12 pp, sha256 4caefefced8b515b, retrieved 2026-08-17, 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: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF