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docs fsw3157ysot236g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
fsw3157ysot236g-etched.fit.json fsw3157ysot236g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
fsw3157ysot236g-etched.glb fsw3157ysot236g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
fsw3157ysot236g-etched.step fsw3157ysot236g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
fsw3157ysot236g.glb Publish 0.1.0 · Ray
fsw3157ysot236g.kicad_mod Publish 0.1.0 · Ray
fsw3157ysot236g.kicad_sym Publish 0.1.0 · Ray
fsw3157ysot236g.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray
fsw3157ysot236g.step Publish 0.1.0 · Ray
package.json Publish 0.2.0 · Ray
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
page.json fsw3157ysot236g: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray
README.md fsw3157ysot236g: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray

FSW3157YSOT236G

Full Way · Analog Switches, Multiplexers · SOT-23-6

FSW3157YSOT236G from Full Way, in a SOT-23-6. 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 B1 bidirectional Analog/Digital signal port (Normally open throw). Bidirectional switch terminal; connected to common port A when SEL=1. On-resistance 1.5Ω typical, ±100mA continuous current.
2 GND power_in Ground reference for the device.
3 B0 bidirectional Analog/Digital signal port (Normally closed throw). Bidirectional switch terminal; connected to common port A when SEL=0. On-resistance 1.5Ω typical, ±100mA continuous current.
4 A bidirectional Common signal port of the SPDT switch. Connects to B0 when SEL=0 and to B1 when SEL=1. Overrides VCC to achieve true isolation even when supply is dead.
5 VCC power_in Single power supply input, 1.5V to 5.5V operating range (absolute max 6.5V). Quiescent current <2µA typical. Bypass with 0.1µF to GND.
6 SEL input Logic input control selecting which B port connects to A. SEL=0 → B0=A; SEL=1 → B1=A. 1.8V logic compatible: VIH=1.6V (VCC=3.3-5.5V) or 1.4V (VCC=1.5-3.3V); VIL=0.6V or 0.4V respectively.

Key specifications

Parameter Value
Manufacturer Full Way
Package SOT-23-6
Category Interface
Pins 6

Ordering variants

Same part, different packaging or reel option.

  • FSW3157YSOT236G/TR
  • FSW3157YSOT363G/TR

CAD (KiCad official)

  • Symbol: FSW3157YSOT236G
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: fsw3157ysot236g-etched.step / fsw3157ysot236g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); fsw3157ysot236g.step / fsw3157ysot236g.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
fsw3157ysot236g.step 97 KB You want the bare part, or you mark your own boards.
fsw3157ysot236g-etched.step 2.9 MB You want the part with FSW3157YSOT236G already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 685 faces against 117 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: Full Way datasheet (9 pp, sha256 da4a63e1a12b4e73, 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