| PartNumber | AT42QT2120-MMHR | AT42QT2120-SU | AT42QT2120-MMH |
| Description | Capacitive Touch Sensors QTouchADC, 12 Button Wheel/Slider | Capacitive Touch Sensors QTouchADC-BSW Proximity Detection | Capacitive Touch Sensors QTouchADC, 12 Button Wheel/Slider |
| Manufacturer | Microchip | Microchip | Microchip |
| Product Category | Capacitive Touch Sensors | Capacitive Touch Sensors | Capacitive Touch Sensors |
| Sensor Type | Button, Slider, Wheel, Proximity | Button, Slider, Wheel, Proximity | Button, Slider, Wheel, Proximity |
| Number of Channels | 12 Channel | 12 Channel | 12 Channel |
| Interface Type | I2C | I2C | I2C |
| Package / Case | VQFN-20 | SOIC-20 | VQFN-20 |
| Packaging | Reel | Tube | Tray |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | Microchip Technology / Atmel |
| Product Type | Touch Sensors | Touch Sensors | Touch Sensors |
| Factory Pack Quantity | 6000 | 37 | 490 |
| Subcategory | Sensors | Sensors | Sensors |
| Moisture Sensitive | - | Yes | - |
| Unit Weight | - | 0.019118 oz | 0.000667 oz |
| Dimensions | - | - | 3 mm L x 3 mm W x 0.85 mm H |
| Temperature Range | - | - | - 40 C to + 85 C |
| Height | - | - | 0.85 mm |
| Length | - | - | 3 mm |
| Termination Style | - | - | SMD/SMT |
| Width | - | - | 3 mm |
| Mounting Style | - | - | SMD/SMT |
| Operating Supply Voltage | - | - | 1.8 V to 5.5 V |