CN810S from ShangHai Consonance Elec, in a SOT-23-3. 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	GND	power_in	Ground reference for the device. Connect to system ground.
2	RESET	output	Active-HIGH CMOS reset output (CN810 variant). When VCC falls below the reset threshold (VRES = 2.93 V typ for the 'S' option) this pin is driven HIGH to assert reset. After VCC rises above VRES + VHYST, the pin remains HIGH for at least 140 ms (typ 240 ms, max 400 ms) before returning LOW. VOH ≥ VCC−0.4 V with ISRC up to 2 mA at VCC=4 V; VOL ≤ 0.3 V with ISINK up to 6 mA at VCC=5 V.
3	VCC	power_in	Positive supply input. This pin is both the operating supply for the internal circuitry and the voltage being monitored against the reset threshold. Absolute max 6.0 V; operating range up to 5.5 V; monitored threshold VRES = 2.93 V typ (2.86-3.00 V) for the 'S' option. A 0.1 µF bypass capacitor near this pin is recommended to improve rejection of short supply glitches.

Key specifications

Parameter	Value
Manufacturer	ShangHai Consonance Elec
Package	SOT-23-3
Category	PMIC
Pins	3

Ordering variants

Same part, different packaging or reel option.

CN810S

CAD (KiCad official)

Symbol: CN810S
Footprint: Package_TO_SOT_SMD:SOT-23-3
3D model: SOT-23-3 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`cn810s.step`	59 KB	You want the bare part, or you mark your own boards.
`cn810s-etched.step`	1.4 MB	You want the part with `CN810S` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 330 faces against 69 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: ShangHai Consonance Elec datasheet (7 pp, sha256 bbeb80fd1a0c3663, 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