CC6900SO-20A 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 current path positive terminal. Tie in parallel with pin 2 to carry the sampled current through the integrated low-impedance conductor. 100V isolation to signal pins.
2	IP+	passive	Primary current path positive terminal (paralleled with pin 1). Part of the isolated current-carrying conductor.
3	IP-	passive	Primary current path negative/return terminal. Tie in parallel with pin 4. 100V isolation to signal pins.
4	IP-	passive	Primary current path negative/return terminal (paralleled with pin 3).
5	GND	power_in	Signal ground reference for the internal Hall front-end, chopper, and output amplifier.
6	NC	unconnected	No connection. Must be left floating per the datasheet (需悬空).
7	OUT	output	Analog signal output. Quiescent level = 0.5 x VCC (2.5V at VCC=5V); swings 0.5 V to 4.5 V linearly with sensed current at 100 mV/A for the -20A variant. Linearity ~0.4%.
8	VCC	power_in	Supply voltage input, nominally 5V. Powers the Hall front-end, chopper oscillator, temperature compensation, and output amplifier.

Key specifications

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

Ordering variants

CC6900SO-20ASO-5A
CC6900SO-20ASO-10A
CC6900SO-20A
CC6900SO-20ASO-30A

CAD (KiCad official)

Symbol: CC6900SO-20A
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
`cc6900so-20a.step`	122 KB	You want the bare part, or you mark your own boards.
`cc6900so-20a-etched.step`	2.8 MB	You want the part with `CC6900SO-20A` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 659 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 (3 pp, sha256 e459878df789bbd5, 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