CapSense® MBR3 Mechanical Button Replacement

CapSense® MBR3 Mechanical Button Replacement

CapSense MBR3 is Cypress’s solution for quickly and easily replacing mechanical buttons with sleek and reliable capacitive-sensing user interfaces. The CapSense MBR3 family is the world’s easiest capacitive-sensing solution that allows you to design with the click of a mouse using our GUI-based software tool, EZ-Click™.

CapSense MBR3 combines the best of CapSense features including SmartSense™ auto-tuning, robust water tolerance, and best-in-class proximity sensing while delivering reliable performance under all conditions. The CapSense MBR3 family comes in four small packages that are suited for various capacitive-sensing designs.


  • CapSense MBR3 requires no firmware development
  • EZ-Click GUI-based software tool configures devices without the need to write any code

SmartSense Auto-Tuning

  • A CapSense algorithm that continuously compensates for system, manufacturing and environmental changes
  • Eliminates the need for manual tuning during all product design phases

Robust Water Tolerance

  • CapSense MBR3 works under water droplets, rain, mist and other liquids
  • Ensures no false touches even under streaming water

Industry's Best Capacitive Proximity Sensing

  • Achieve up to 30cm in proximity sensing distance
  • Implement advanced features like wake-on-approach to support ultra-low power applications

Reliable Performance

  • Advanced sensing algorithms ensure reliable performance even in noisy environments
  • Implement designs with Signal-to-Noise Ratio (SNR) of > 100:1

How to Get Started

  • Buy the $25 CY3280-MBR3 Evaluation Kit
  • Download the free EZ-Click software
  • Download the CapSense MBR3 Design Guide

Related Files

  • CapSense MBR3 Datasheet
  • CapSense MBR3 Design Guide
  • CapSense MBR3 Control Register Technical Reference Manual
  • CapSense MBR3 Device Programming Specifications