CN825S from ShangHai Consonance Elec, in a SOT-23-6. 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	MR	input	Active-low manual reset input. Pulling MR low triggers a reset pulse. Internally pulled up to VCC through a 50kΩ resistor (38-62kΩ), so the pin may be left floating, driven by CMOS logic, or driven by open-drain/open-collector output. Minimum pulse width 1µs; MR-to-reset delay 500ns typ.
2	GND	power_in	Ground / negative supply return for the IC.
3	/RESET	output	Active-low reset output. Driven low when VCC falls below the reset threshold (2.93V typ for CN825S), when MR is low, or when the watchdog timer overflows. After the fault clears, /RESET remains low for at least 140ms (200ms typ) before returning high. Guaranteed valid down to VCC = 1.1V. VOL ≤ 0.3V @ ISINK=3.2mA; VOH ≥ VCC−1V @ ISOURCE=1mA.
4	VCC	power_in	Positive supply input; also the monitored voltage compared against the internal reset threshold. Operating range 1.1V to 6.5V, absolute max 6.5V. Supply current ≈2.7µA below the reset threshold, ≈16µA above.
5	RESET	output	Active-high reset output. Driven high when VCC is below the reset threshold, when MR is low, or when the watchdog overflows. After the fault clears, RESET remains high for at least 140ms (200ms typ) before returning low. VOH ≥ VCC−1V @ ISOURCE=1mA; VOL ≤ 0.3V @ ISINK=3.2mA.
6	WDI	input	Watchdog input. Must transition (high-to-low or low-to-high) at least once every 1.6s (typ; 0.95s min, 2.25s max) or the watchdog overflows and asserts both reset outputs for ≥140ms. Minimum edge pulse width 50ns. Input leakage ±50nA. Logic thresholds VIL ≤ 0.25VCC, VIH ≥ 0.75VCC.

Key specifications

Parameter	Value
Manufacturer	ShangHai Consonance Elec
Package	SOT-23-6
Category	PMIC
Pins	6

Ordering variants

Same part, different packaging or reel option.

CN825SS
CN825SR
CN825SZ

CAD (KiCad official)

Symbol: CN825S
Footprint: Package_TO_SOT_SMD:SOT-23-6
3D model: SOT-23-6 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`cn825s.step`	97 KB	You want the bare part, or you mark your own boards.
`cn825s-etched.step`	1.6 MB	You want the part with `CN825S` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 384 faces against 117 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 (9 pp, sha256 4c8e82b7435776f0, 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