Products for USB Sensing and Control
1129_1 - Touch Sensor
Quantity Price
In Stock
Qty: 1000+

Product Features

Detect a touch through up to 1/2" of glass or plastic with this low-cost capacitive sensor.
Product Description

The 1129 is a capacitive touch sensor and can detect a touch through plastic, glass, or paper. We recommend a material thickness of up to 1/2”.

The sensor can work as a close proximity sensor, sensing objects at a distance of up to 1/2” from the board in all directions without direct contact.

On the bottom side of the Touch Sensor there is a small exposed metallic pad. A soldered connection can be made to the pad to increase the size and dimensions of the touchable area, such as attaching the sensor to a metallic object or some wire.

This sensor is designed to be 3.3V compatible and can interface with other products as an alternative. For example, the Java based Sentilla Perk includes side ports that are compatible with 3.3V Phidget sensors without any modifications.

This particular revision of the 1129 has a new sensing chip that recalibrates after 45 seconds of contact (as opposed to 60 seconds on the previous revision). Other than that, this sensor will function the same as its predecessor.

Comes packaged with


Product Specifications

Sensor Properties

Sensor TypeTouch (Capacitive)
Sensor Output TypeRatiometric
Detecting Distance Max12.7 mm

Electrical Properties

Current Consumption Max500 μA
Output Impedance1 kΩ
Supply Voltage Min1.8 V DC
Supply Voltage Max5.5 V DC

Physical Properties

Operating Temperature Min-40 °C
Operating Temperature Max85 °C

Previous versions of the 1129

Code Samples For This Product

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