TS5A4594DCKR from Texas Instruments, in a SC-70-5. 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	COM	passive	Common analog switch terminal. Bidirectional analog/digital signal path (0 V to V+). On-state resistance ~8 Ω at 5 V supply; connects to NO when IN is high.
2	NO	passive	Normally-open analog switch terminal. Bidirectional signal path (0 V to V+); connected to COM when IN is high, isolated when IN is low (OFF isolation -82 dB at 1 MHz).
3	GND	power_in	Ground reference. All voltages referenced to this pin. Continuous current through GND limited to 100 mA.
4	IN	input	Digital control input, TTL/CMOS compatible. VIH = 2.4 V min, VIL = 0.8 V max at 5 V supply. Logic high closes the switch (COM↔NO); logic low opens it. Input leakage ±0.5 µA max.
5	V+	power_in	Positive supply voltage input, 2 V to 5.5 V single-supply operation. Quiescent supply current 0.25 µA typ at 5.5 V. Continuous current through V+ limited to 100 mA.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SC-70-5
Category	Interface
Pins	5

Ordering variants

Same part, different packaging or reel option.

TS5A4594DCKR
TS5A4594DCKRDBVR

CAD (KiCad official)

Symbol: TS5A4594DCKR
Footprint: Package_TO_SOT_SMD:SOT-353_SC-70-5
3D model: SC-70-5 (KiCad packages3D, STEP)

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: Texas Instruments datasheet (23 pp, sha256 6b0724af6172fead, 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