RS2057XC6 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	bidirectional	Normally-Open analog switch terminal. Connected to COM when IN = logic 1, isolated when IN = logic 0. Signal range 0 V to V+; can act as input or output. Continuous current ±300 mA (peak ±500 mA); typical Ron 4.5Ω at V+ = 5 V.
2	GND	power_in	Ground reference for the device. Connect to system 0 V.
3	NC	bidirectional	Normally-Closed analog switch terminal. Connected to COM when IN = logic 0, isolated when IN = logic 1. Signal range 0 V to V+; can act as input or output. Continuous current ±300 mA (peak ±500 mA); typical Ron 4.5Ω at V+ = 5 V.
4	COM	bidirectional	Common analog switch terminal (the pole of the SPDT). Routed to NO or NC depending on the IN logic level. Signal range 0 V to V+; can act as input or output. Continuous current ±300 mA (peak ±500 mA).
5	V+	power_in	Positive supply input, 1.8 V to 5.5 V. Absolute maximum V+ to GND is 7.0 V. Typical supply current ≤1 µA at V+ = 5.5 V.
6	IN	input	Digital control input selecting the switch position (TTL/CMOS compatible). Logic 0 → NC connected to COM (NO open); Logic 1 → NO connected to COM (NC open). VINH ≥ 1.5 V at V+ = 5 V (≥ 1 V at 3.3 V); VINL ≤ 0.6 V at V+ = 5 V (≤ 0.5 V at 3.3 V). Input leakage ≤ 1 µA. 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.

RS2057XC6
RS2057XH

CAD (KiCad official)

Symbol: RS2057XC6
Footprint: Package_TO_SOT_SMD:SOT-363_SC-70-6
3D model: SC-70-6 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`rs2057xc6.step`	99 KB	You want the bare part, or you mark your own boards.
`rs2057xc6-etched.step`	2.1 MB	You want the part with `RS2057XC6` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 498 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 9dfc7672020c294d, 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