GH39FKSW from GoChip Elec Tech Shanghai, in a SOT-23-3L. 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	VDD	power_in	Positive supply voltage. Operating range 3.0 V to 6.5 V; absolute maximum 15 V. Typical supply current 6.0 mA (max 9.0 mA).
2	VOUT	output	Analog output. Emitter-follower output proportional to magnetic flux density. Quiescent output 2.25-2.75 V at B=0 (Vcc=5 V), sensitivity 1.45-2.0 mV/GS, output span roughly VH=0.80-1.05 V to VL=3.95-4.20 V over ±1000 GS. Recommended load impedance >10 kΩ; absolute max output current 10 mA.
3	GND	power_in	Ground reference for supply and output signal.

Key specifications

Parameter	Value
Manufacturer	GoChip Elec Tech Shanghai
Package	SOT-23-3L
Category	Sensor
Pins	3

Ordering variants

Same part, different packaging or reel option.

GH39FKSW
GH39FKSWUA

CAD (KiCad official)

Symbol: GH39FKSW
Footprint: Package_TO_SOT_SMD:SOT-23-3
3D model: SOT-23-3L (KiCad packages3D, STEP)

Provenance

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

Datasheet: GoChip Elec Tech Shanghai datasheet (6 pp, sha256 9661667b031c753f, retrieved 2026-08-17, tier: lcsc)
Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
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