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Capacitive Touch Sensor, One-Channel, 1.8 V, 5.5 V, SOT-23, 6 Pins, -40 °C


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Newark Part No.:
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Technical Datasheet:
AT42QT1012-TSHR   Datasheet
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Product Overview

The AT42QT1012-TSHR is a Single Key Device features a touch on/touch off (toggle) output and programmable auto switch-off capability. The digital burst mode charge-transfer (QT™) sensor is designed specifically for touch controls. It includes all hardware and signal processing functions necessary to provide stable sensing under a wide variety of changing conditions. Only low cost, noncritical components are required for operation. This device can suit almost any product needing a power switch or other toggle-mode controlled function, especially small appliances and battery-operated products. A unique environmentally-conscious feature of this device is its timeout function, which can turn off power after a specified time delay ranging from minutes to an hour.
  • One, Toggle Mode (Touch-on/Touch-off), Plus Programmable Auto-off Delay and External Cancel
  • Configurable as Either a Single Key or a Proximity Sensor
  • Patented Spread-S 6 x 6mm or larger technology, Widely different sizes and shapes possible
  • Solid or Ring Electrode Shape Design
  • 1 PCB Layer Required
  • Etched Copper, Silver, Carbon and Indium Tin Oxide (ITO) Electrode Materials
  • PCB, FPCB, Plastic Films and Glass Electrode Substrates
  • Plastic, Glass, Composites and Painted surfaces possible Panel Materials
  • Up to 12mm Glass, 6mm Plastic (Electrode Size and Cs Dependent) Panel Thickness
  • Key Sensitivity Settable Via External Capacitor (Cs)
  • Digital Output, Active High or Active Low (Hardware Configurable) Interface
  • Increased Moisture Tolerance Based on Hardware Design and Firmware Tuning
  • Self-calibration, Auto Drift Compensation, Noise Filtering Signal Processing


Consumer Electronics, Industrial, Automation & Process Control, Communications & Networking, Sensing & Instrumentation, Lighting, Metering, Portable Devices, Computers & Computer Peripherals

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Technical Documents (4)

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