GH1248ESW 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 input. Operating range 1.8 V to 5.5 V; absolute max 7.0 V. Bypass with ~10 nF to GND close to the pin (per Figure 5).
3	GND	power_in	Ground reference pin (SOT-23-3L pin 3; SIP-3L pin 2; DFN1616-3 pin 3).
2	OUTPUT	output	Digital latched output driven by internal open-drain NMOS with built-in pull-up resistor to VDD. Pulled low (Vsat ~0.05 V typ at 1 mA) when

Key specifications

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

CAD (KiCad official)

Symbol: GH1248ESW
Footprint: Package_TO_SOT_SMD:SOT-23-3
3D model: SOT-23-3L (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`gh1248esw.step`	59 KB	You want the bare part, or you mark your own boards.
`gh1248esw-etched.step`	1.7 MB	You want the part with `GH1248ESW` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 415 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: GoChip Elec Tech Shanghai datasheet (9 pp, sha256 6a2aca797ed7f856, 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