SS349RT from Honeywell, in a SOT-23. 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. Operating range typically 3.8 V to 30 V DC.
2	OUT	output	Open-drain digital output. Sinks current when the sensor is activated by a magnetic field of the appropriate polarity; requires an external pull-up resistor.
3	GND	power_in	Ground / supply return.

Key specifications

Parameter	Value
Manufacturer	Honeywell
Package	SOT-23
Category	Sensor
Pins	3

Ordering variants

Same part, different packaging or reel option.

SS349RT

CAD (KiCad official)

Symbol: SS349RT
Footprint: Package_TO_SOT_SMD:SOT-23
3D model: SOT-23 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`ss349rt.step`	59 KB	You want the bare part, or you mark your own boards.
`ss349rt-etched.step`	1.6 MB	You want the part with `SS349RT` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 391 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: 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