NC7SZ66P5X-TP from TECH PUBLIC, in a SOT-353. 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	A	bidirectional	Analog switch port A. Bilateral analog I/O connected to port B when OE is HIGH. Signal voltage range 0 V to Vcc; on-state switch current ±50 mA max.
2	B	bidirectional	Analog switch port B. Bilateral analog I/O connected to port A when OE is HIGH. Signal voltage range 0 V to Vcc; on-state switch current ±50 mA max.
3	GND	power_in	Ground reference (0 V). Return path for supply and control input currents.
4	OE	input	Output Enable / switch control input. HIGH connects A to B (switch closed); LOW opens the switch (high-Z between A and B). Accepts input voltages 0 V to 5.5 V; over-voltage tolerant of Vcc.
5	VCC	power_in	Positive supply voltage. Operating range 1.65 V to 5.5 V (absolute max 6.5 V). Sets the maximum I/O port voltage (V_IO limited to 0 to Vcc).

Key specifications

Parameter	Value
Manufacturer	TECH PUBLIC
Package	SOT-353
Category	Interface
Pins	5

Ordering variants

Same part, different packaging or reel option.

NC7SZ66P5X-TP
NC7SZ66M5X-TP

CAD (KiCad official)

Symbol: NC7SZ66P5X-TP
Footprint: Package_TO_SOT_SMD:SOT-353_SC-70-5
3D model: SOT-353 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`nc7sz66p5x-tp.step`	87 KB	You want the bare part, or you mark your own boards.
`nc7sz66p5x-tp-etched.step`	2.2 MB	You want the part with `NC7SZ66P5X-TP` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 537 faces against 102 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: TECH PUBLIC datasheet (8 pp, sha256 c90936e616bb4f85, 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