AH49HSC from PJSEMI, 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. Recommended operating range 3 V to 8 V (absolute max 10 V DC, 50 V instantaneous). Typical supply current ~2 mA at VCC=3.3 V.
2	OUT	output	Analog linear Hall-effect output. Described as 'Open Drain Output' in the pin table but functions as an analog current-source-driven voltage output (internal 65 µA current source, ~50 Ω output resistance). Quiescent voltage ~1.7 V at VCC=3.3 V (B=0 Gauss); swings ~0.85 V to ~2.6 V across ±3000 Gauss with sensitivity ~0.33 mV/Gauss.
3	GND	power_in	Ground / device return.

Key specifications

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

Ordering variants

AH49HSC

CAD (KiCad official)

Symbol: AH49HSC
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
`ah49hsc.step`	59 KB	You want the bare part, or you mark your own boards.
`ah49hsc-etched.step`	1.3 MB	You want the part with `AH49HSC` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 320 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: PJSEMI datasheet (6 pp, sha256 982f64b0a4f5da07, 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