TS5A3159DCKR from Texas Instruments, in a SC-70-6(SOT-363). 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 switch port. Connected to COM when IN is high. Analog signal range 0 to V+, ON-state resistance ~1 Ω, continuous current up to ±100 mA.
2	GND	power_in	Ground reference for the device.
3	NC	bidirectional	Normally closed switch port. Connected to COM when IN is low. Analog signal range 0 to V+, ON-state resistance ~1 Ω, continuous current up to ±100 mA.
4	COM	bidirectional	Common switch port. Routed to NO or NC depending on IN state. Analog signal range 0 to V+, continuous current up to ±100 mA.
5	V+	power_in	Positive supply voltage. Operating range 1.65 V to 5.5 V (absolute max 6.5 V).
6	IN	input	Digital switch-select input. High level connects COM to NO; low level connects COM to NC. 5-V tolerant regardless of supply. VIH ≥ 2.4 V (5-V supply), VIL ≤ 0.8 V.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SC-70-6(SOT-363)
Category	Interface
Pins	6

Ordering variants

Same part, different packaging or reel option.

TS5A3159DCKR
TS5A3159DCKRDCKT
TS5A3159DCKRDBVR
TS5A3159DCKRDBVT

CAD (KiCad official)

Symbol: TS5A3159DCKR
Footprint: Package_TO_SOT_SMD:SOT-363_SC-70-6
3D model: SC-70-6(SOT-363) (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`ts5a3159dckr.step`	99 KB	You want the bare part, or you mark your own boards.
`ts5a3159dckr-etched.step`	2.4 MB	You want the part with `TS5A3159DCKR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 591 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: Texas Instruments datasheet (31 pp, sha256 384d4decc591a99e, retrieved 2026-08-17, tier: manufacturer)
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