Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Configuration | 1-channel 2:1 SPDT |
| Single Supply | 4.5 V to 36 V |
| Dual Supply | ±4.5 V to ±18 V |
| On-Resistance | 2.1 Ω stated feature |
| Current | 330 mA maximum stated support for VSSOP |
| Logic | 1.8 V compatible and fail-safe |
| Switching | Bidirectional rail-to-rail, break-before-make |
| Exact Package / Packing | VSSOP (DGK), 8 pins; 2500-piece large tape and reel; marking X219 |
Product Overview
TMUX6219DGKR is a single SPDT switch for industrial/high-voltage analog paths up to 36 V single-ended or ±18 V dual-supply operation. It combines low 2.1 Ω on-resistance with 1.8 V logic control so a low-voltage MCU can select substantially higher-voltage signals.
The VSSOP order code supports up to 330 mA maximum family-stated current, lower than the WSON option’s higher current headline. Exact package therefore affects current/thermal selection and should not be ignored when reading family comparison tables.
An EN pin disconnects both paths, allowing the common node to be isolated rather than always connected to one source. This is useful for analog front-end fault isolation and calibration routing.
For related devices, see HKEQGOO’s Analog Switches & Multiplexers category.
Technical Specifications
| Parameter | Verified Information |
|---|---|
| Manufacturer | Texas Instruments |
| Exact MPN | TMUX6219DGKR |
| Configuration | 1-channel 2:1 SPDT |
| Single Supply | 4.5 V to 36 V |
| Dual Supply | ±4.5 V to ±18 V |
| On-Resistance | 2.1 Ω stated feature |
| Current | 330 mA maximum stated support for VSSOP |
| Logic | 1.8 V compatible and fail-safe |
| Switching | Bidirectional rail-to-rail, break-before-make |
| Exact Package / Packing | VSSOP (DGK), 8 pins; 2500-piece large tape and reel; marking X219 |
| Manufacturer Status | Active / Production |
| Part Marking | X219 |
Functional Highlights
36 V signal range serves industrial analog routing
It can switch process-control/test signals that exceed the capability of 5 V muxes while preserving modern low-voltage control logic.
Package changes current capability
The compact leaded VSSOP provides inspectability but has a lower stated maximum signal-current capability than the WSON package. Current must be checked against exact package conditions.
Design Considerations
- Use the VSSOP-specific current/thermal limits rather than the higher WSON headline.
- Keep high-voltage transients within switch ratings using appropriate external protection.
- Check Ron-induced error and self-heating when switching higher current into precision loads.
Product Status and Exact Order Code
Manufacturer status: Active / Production
Texas Instruments lists TMUX6219DGKR as Active / Production; VSSOP (DGK), 8 pins; 2500-piece large tape and reel; Level-1-260C-UNLIM; −40°C to +125°C; marking X219.
Related Engineering Resources
Quality & Verification Support
Third-party inspection or testing can be arranged according to customer requirements. Testing fees are borne by the buyer. Additional verification requirements can be discussed before shipment. After an order is placed, physical product, label, packaging, and Date Code photos may be provided where appropriate.
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