SS441R from Honeywell, in a TO-92. 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	VS	power_in	Supply voltage input (Vs, +). Operating range 3 Vdc to 24 Vdc; supply current typ. 4 mA at 5 V. Reverse-polarity protected; absolute max -28 V to +28 V.
2	GND	power_in	Ground return (-) for supply and open-collector output.
3	OUT	output	Open-collector current-sinking digital output (normally high via external pull-up). Sinks up to 20 mA with Vsat <= 0.4 V when the applied south-pole flux exceeds Bop; leakage <= 10 uA when off. Rise/fall time typ. 1.5 us (RL=1.6 kOhm, CL=20 pF).

Key specifications

Parameter	Value
Manufacturer	Honeywell
Package	TO-92
Category	Sensor
Pins	3

Ordering variants

Same part, different packaging or reel option.

SS441R
SS443R
SS449R
SS441RSS341RT
SS441RSS343RT
SS441RSS349RT

CAD (KiCad official)

Symbol: SS441R
Footprint: Package_TO_SOT_THT:TO-92_Inline
3D model: TO-92 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`ss441r.step`	27 KB	You want the bare part, or you mark your own boards.
`ss441r-etched.step`	1.1 MB	You want the part with `SS441R` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 276 faces against 19 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: Honeywell datasheet (10 pp, sha256 0d0bded21e5e4b49, 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