# STG719STR

**STMicroelectronics** · Analog Switches, Multiplexers · SOT-23-6

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)
- 3D model files: `stg719str-etched.step` / `stg719str-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `stg719str.step` / `stg719str.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [STMicroelectronics datasheet](docs/stg719str-datasheet.pdf) (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](docs/stg719str-datasheet.pdf)