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docs rs2257xc6: 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
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 rs2257xc6: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray
README.md rs2257xc6: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray
rs2257xc6-etched.fit.json rs2257xc6: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
rs2257xc6-etched.glb rs2257xc6: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
rs2257xc6-etched.step rs2257xc6: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
rs2257xc6.glb Publish 0.1.0 · Ray
rs2257xc6.kicad_mod Publish 0.1.0 · Ray
rs2257xc6.kicad_sym Publish 0.1.0 · Ray
rs2257xc6.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
rs2257xc6.step Publish 0.1.0 · Ray

RS2257XC6

Jiangsu RUNIC Tech · Analog Switches, Multiplexers · SC-70-6

RS2257XC6 from Jiangsu RUNIC Tech, in a SC-70-6. 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 NO passive Normally-Open analog switch terminal. When the logic control (IN) is high, NO is connected to COM through the ~0.6 Ω on-resistance channel; when IN is low, NO is disconnected. Signal range 0 V to V+.
2 GND power_in Ground reference for the device. Must be tied to the system ground.
3 NC passive Normally-Closed analog switch terminal. When the logic control (IN) is low, NC is connected to COM through the ~0.6 Ω on-resistance channel; when IN is high, NC is disconnected. Signal range 0 V to V+.
4 COM passive Common analog switch terminal. Routed to either NO or NC depending on the IN logic state (break-before-make). Signal range 0 V to V+, continuous current ±500 mA max.
5 V+ power_in Positive supply input. Operating range +1.8 V to +5.5 V; absolute max 7.0 V referenced to GND. Quiescent supply current ≤1 µA.
6 IN input Digital control input, TTL/CMOS compatible. VIH ≥ 1.5 V (@5 V) / 1.3 V (@3.3 V); VIL ≤ 0.6 V (@5 V) / 0.5 V (@3.3 V). Logic 0 → NC on / NO off; Logic 1 → NO on / NC off. Must not be left floating.

Key specifications

Parameter Value
Manufacturer Jiangsu RUNIC Tech
Package SC-70-6
Category Interface
Pins 6

Ordering variants

Same part, different packaging or reel option.

  • RS2257XC6
  • RS2257XH

CAD (KiCad official)

  • Symbol: RS2257XC6
  • Footprint: Package_TO_SOT_SMD:SOT-363_SC-70-6
  • 3D model: SC-70-6 (KiCad packages3D, STEP)
  • 3D model files: rs2257xc6-etched.step / rs2257xc6-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); rs2257xc6.step / rs2257xc6.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
rs2257xc6.step 99 KB You want the bare part, or you mark your own boards.
rs2257xc6-etched.step 2.0 MB You want the part with RS2257XC6 already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 488 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: Jiangsu RUNIC Tech datasheet (11 pp, sha256 2518049fa2c22b06, 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