STG719STR from STMicroelectronics, in a SOT-23-6. 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	IN	input	Digital control input selecting which independent channel (S1 or S2) is connected to the common D pin. Low level connects S1 to D; High level connects S2 to D. CMOS logic thresholds referenced to VCC (VIH=2.0V at 3.3V, 2.4V at 5V).
2	VCC	power_in	Positive supply voltage. Operating range 1.8V to 5.5V (absolute max -0.5V to +7.0V). Quiescent current is 1µA max.
3	GND	power_in	Ground reference (0V).
4	S1	passive	Independent analog switch channel 1. Bidirectional analog signal path connected to D when IN is Low. RON = 4Ω max at VCC=5V; signal range 0 to VCC.
5	D	passive	Common analog switch pole. Bidirectional pin that connects to either S1 or S2 depending on IN state.
6	S2	passive	Independent analog switch channel 2. Bidirectional analog signal path connected to D when IN is High. RON = 4Ω max at VCC=5V; signal range 0 to VCC.

Key specifications

Parameter	Value
Manufacturer	STMicroelectronics
Package	SOT-23-6
Category	Interface
Pins	6

Ordering variants

Same part, different packaging or reel option.

STG719STR

CAD (KiCad official)

Symbol: STG719STR
Footprint: Package_TO_SOT_SMD:SOT-23-6
3D model: SOT-23-6 (KiCad packages3D, STEP)

Provenance

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

Datasheet: STMicroelectronics datasheet (8 pp, sha256 e19f35b4d9ed0964, 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