TC7SZ14FE from TOSHIBA LJ CT, in a SOT-553. 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	N.C.	unconnected	No connect. Not internally connected; may be left floating or tied to GND for mechanical stability.
2	IN A	input	Schmitt-trigger logic input. 5.5 V tolerant regardless of VCC. Typical hysteresis VH ≈ 0.77 V at VCC = 3.0 V. Unused input must be tied to VCC or GND.
3	GND	power_in	Ground / 0 V reference for the device.
4	OUT Y	output	Inverted Schmitt-trigger CMOS output (Y = NOT A). Drives ±24 mA (min) at VCC = 3.0 V; up to ±32 mA at 4.5 V. Output remains high-impedance / protected up to 5.5 V when VCC is powered down.
5	VCC	power_in	Positive supply, 1.65 V to 5.5 V operating range. Bypass with a local ceramic capacitor (typ. 0.1 µF) to GND.

Key specifications

Parameter	Value
Manufacturer	TOSHIBA LJ CT
Package	SOT-553
Category	Logic
Pins	5

Ordering variants

Same part, different packaging or reel option.

TC7SZ14FE

CAD (KiCad official)

Symbol: TC7SZ14FE
Footprint: Package_TO_SOT_SMD:SOT-553
3D model: SOT-553 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`tc7sz14fe.step`	380 KB	You want the bare part, or you mark your own boards.
`tc7sz14fe-etched.step`	1.4 MB	You want the part with `TC7SZ14FE` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 311 faces against 47 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: TOSHIBA LJ CT datasheet (9 pp, sha256 2a58d40ed8c948de, 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