MT9101ET from Magn Tek, 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, 3.0 V to 5.5 V operating range (30 V absolute max). Typical supply current 6.7 mA @ Vcc=5V. Bypass with a local decoupling capacitor to GND.
2	Out	output	Ratiometric analog output. Quiescent voltage is Vcc/2 (2.500 V typ @ Vcc=5V; 1.650 V typ @ Vcc=3.3V) at B=0 and swings linearly with magnetic flux density. Output resistance ~2 Ω; source/sink capability ±1.5 mA; recommended external load ≥4.7 kΩ, load cap ≤10 nF.
3	GND	power_in	Ground / power return.

Key specifications

Parameter	Value
Manufacturer	Magn Tek
Package	SOT-23
Category	Sensor
Pins	3

Ordering variants

Same part, different packaging or reel option.

MT9101ET
MT9101ETA

CAD (KiCad official)

Symbol: MT9101ET
Footprint: Package_TO_SOT_SMD:SOT-23
3D model: SOT-23 (KiCad packages3D, STEP)

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: Magn Tek datasheet (12 pp, sha256 a002ba99c385ccb1, 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