CC6920SO-5A 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 input (positive terminal). Internally tied to pin 2 through the low-resistance (0.9 mΩ typ) integrated copper conductor. Current flows from IP+ (pins 1-2) to IP- (pins 3-4) for a positive reading. Isolated from the signal side by 3500 Vrms.
2	IP+	passive	Primary current input (positive terminal), second lead of the IP+ side of the integrated copper conductor. Must be paralleled with pin 1 on the PCB.
3	IP-	passive	Primary current output (negative terminal), first lead of the IP- side of the integrated copper conductor. Must be paralleled with pin 4 on the PCB.
4	IP-	passive	Primary current output (negative terminal), second lead of the IP- side of the integrated copper conductor. Must be paralleled with pin 3 on the PCB.
5	GND	power_in	Signal-side ground reference for VCC, VOUT, and VZCR. Isolated from the primary current path (IP+/IP-) by 3500 Vrms (basic isolation 424 Vrms).
6	VZCR	output	Zero-current reference signal output (typically VCC/2). Source current up to 400 µA, sink current up to 3 mA; recommended design margin keeps IZCR < 0.4 mA (reserve ~0.3 mA). Used as a stable reference for downstream difference amplifiers.
7	OUT	output	Analog voltage output proportional to primary current. For the 5A variant: VOUT = VCC/2 + 0.400 × IP(A). Zero-current output = VCC/2 (2.490-2.510 V at VCC=5V). Linear range 0.5-4.5 V, source current 6 mA / sink 30 mA max, drives up to 1 nF load with ≥1.5 kΩ pull.
8	VCC	power_in	Analog supply, 4.5-5.5 V (5 V typ), 20 mA typ / 25 mA max quiescent. Absolute maximum 7 V. Decouple with a 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

Same part, different packaging or reel option.

CC6920SO-2.5A
CC6920SO-5A
CC6920SO-10A
CC6920SO-20A
CC6920SO-25A
CC6920SO-30A
CC6920SO-40A
CC6920SO-50A
CC6920SO-XXA

CAD (KiCad official)

Symbol: CC6920SO-5A
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
`cc6920so-5a.step`	122 KB	You want the bare part, or you mark your own boards.
`cc6920so-5a-etched.step`	2.5 MB	You want the part with `CC6920SO-5A` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 596 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 (23 pp, sha256 5fe4aa3fee763407, retrieved 2026-08-17, tier: lcsc)
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