SKU: SENS-0516
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Microchip Technology AT42QT1010-TSHR Single-Key Touch Sensor IC, SOT-23-6

₹116.00 (Inclusive of all taxes)
Out of Stock

The Microchip Technology AT42QT1010-TSHR is a single-key capacitive touch sensor IC in a SOT-23-6 package, designed for direct integration into PCBs to replace mechanical buttons. It features advanced charge-transfer sensing for reliable touch and proximity detection through various panel materials, making it compatible with 1.8V to 5.5V microcontroller systems like Arduino, ESP32, and STM32.

Features

  • Single-key capacitive touch/proximity sensor IC in SOT-23-6 package.
  • Advanced spread-spectrum charge-transfer sensing technology for robust performance.
  • Operates from 1.8V to 5.5V with ultra-low typical current consumption (~17µA at 1.8V).
  • Detects touch through glass (up to 12mm) and plastic (up to 6mm) panels.
  • Minimal external components required; only a single tuning capacitor (Cs) needed.

Out of stock

Description

The AT42QT1010-TSHR from Microchip Technology Technology is a dedicated capacitive touch sensor IC that utilizes a patented spread-spectrum charge-transfer method. This technology provides high immunity to conducted and radiated electrical noise, ensuring stable and reliable touch detection in electrically noisy environments. The IC integrates all necessary signal conditioning, including automatic drift compensation and self-calibration, which continuously adapts to environmental changes such as temperature and humidity.

Designed for seamless integration into modern electronic designs, the sensor supports a wide range of electrode materials including copper, ITO, silver, and carbon, and can be implemented on PCBs, flexible printed circuits, or directly behind non-conductive panels. Its digital active-high output provides a clean, debounced signal directly compatible with microcontroller GPIO pins, simplifying firmware development for touch-responsive interfaces in appliances, control panels, and consumer electronics.

Key Features

  • Single-key capacitive touch and proximity sensing with high sensitivity adjustment via external capacitor.
  • Built-in automatic calibration and drift compensation for long-term stability.
  • Enhanced moisture resistance through intelligent signal processing algorithms.
  • Wide operating voltage range (1.8V to 5.5V) for compatibility with 3.3V and 5V logic systems.
  • Compact SOT-23-6 surface-mount package for space-constrained PCB designs.
  • Robust performance through various dielectric materials including glass, plastic, and composite panels.

Applications

  • Replacement for mechanical buttons in home appliances (ovens, washing machines, coffee makers).
  • Touch-sensitive control panels for industrial HMIs and instrumentation.
  • Sleek, sealed user interfaces in automotive infotainment and climate controls.
  • Consumer electronics such as toys, remote controls, and portable lighting systems.
  • Proximity-activated interfaces for battery-powered IoT devices requiring low standby current.

Technical Specifications

Manufacturer Part NumberAT42QT1010-TSHR
Sensor TypeCapacitive Touch / Proximity
Number of Keys1
Sensing TechnologySpread-Spectrum Charge-Transfer
Output TypeDigital (Active High)
Operating Voltage1.8 V to 5.5 V
Current Consumption (Typical)~17 µA @ 1.8V
Package TypeSOT-23-6
Max Panel Thickness (Glass)Up to 12 mm
Max Panel Thickness (Plastic)Up to 6 mm
External Components1 Capacitor (Cs) for tuning
Electrode CompatibilityCopper, ITO, Silver, Carbon
Signal ProcessingAuto-Calibration, Drift Compensation, Noise Filtering

Frequently Asked Questions

What is the operating voltage range of the AT42QT1010-TSHR sensor?

The AT42QT1010-TSHR operates from a wide voltage range of 1.8V to 5.5V DC. This makes it directly compatible with both 3.3V and 5V microcontroller systems, such as those based on Arduino, ESP32, or STM32, without requiring level-shifting circuitry.

How do I adjust the touch sensitivity of this sensor?

Sensitivity is primarily tuned by selecting the value of a single external capacitor (Cs) connected to the IC. A larger capacitor value increases sensitivity, allowing for detection through thicker panels or with smaller electrodes. Refer to the manufacturer's datasheet for detailed guidance on capacitor selection.

What materials can the touch electrode be made from?

The sensor is compatible with various conductive materials for the touch electrode, including standard PCB copper, Indium Tin Oxide (ITO) for transparent panels, silver ink, and carbon. The electrode can be patterned on a rigid PCB, a flexible printed circuit (FPC), or directly on the back of a non-conductive panel.

Does the sensor require any firmware or software drivers?

No, the AT42QT1010-TSHR is a self-contained digital sensor. All touch detection, calibration, and signal processing are handled internally by the IC. It provides a clean, debounced digital output (active high) that can be read directly by a microcontroller's GPIO pin, requiring minimal firmware overhead.

Package Includes

  • 1 x Microchip Technology AT42QT1010-TSHR Touch Sensor IC (SOT-23-6)

Additional Information

Weight 0.005 kg