SL353HT 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	VCC	power_in	Supply voltage input. Operating range 2.2 V to 5.5 V (2.8 V typ.); absolute max 6 V. Marked '+' on package.
2	OUTPUT	output	Push-pull digital Hall-effect output. Drives LOW when a magnetic field above the operate point (±60 G typ.) is present, and HIGH when the field is released. Vout high ≈ Vs−0.11 V, Vout low ≈ 0.11 V at 100 μA load; max load current 5 mA. No external pull-up required.
3	GND	power_in	Ground / supply return. Marked '−' on package.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

SL353HT
SL353LT

CAD (KiCad official)

Symbol: SL353HT
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
`sl353ht.step`	59 KB	You want the bare part, or you mark your own boards.
`sl353ht-etched.step`	1.4 MB	You want the part with `SL353HT` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 346 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 (8 pp, sha256 ebe69f3b9b29ba3e, 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