Capacitive Switches

Capacitive Switches
The MS888X-series are proximity sensors that make use of a patent from EDISEN Sensor Systeme GmbH & CO KG. A change in capacitance is detected by a digital algorithm that is auto-calibrating such that all stray capacitances are compensated. This results in a reliable proximity switch.



  • Medical
  • Automotive
  • Buildings & Sanitary
  • Mobile application
  • Hermetical or vandal proof switches
  • Intrinsic safety


General Features

  • Dynamic proximity switch
  • Digital processing method
  • Automatic calibration
  • Open-drain output (P-type MOSFET, external load between pin and ground)
  • Low-power battery operation possible
  • Adjustable response time
  • Adjustable sensitivity
  • Output configurable as push-button, toggle or pulse
  • Large voltage operating range
  • Internal voltage regulator
  • Large operating temperature range (-40°C to 85°C)


Type specific properties

1- and 2-channel:

  • Configurable output
  • Large voltage operating range (VHI = 3 to 9V)


  • Keypad, matrix and slider applications up to 8x8 matrix (2 chips cascaded)
  • Unrivalled current consumption, typically 10uA
  • Fast-mode Plus (Fm+) I2C-Interface with interrupt generation
  • Sleep mode <100nA
Type Description Package Delivery form Article Nr Data sheet Eval.-board
Article Nr
Application note
1-channel MS8883A SOIC8 Tape&Reel 916683 DB_MS8883A 916987 AH_MS8883
  MS8883C DFN8 Tape&Reel 9160178 DB_MS8883C    
2-channel MS8886A QFN16 Tape&Reel 9160103 DB_MS8886A    
  MS8886C QFN16 Tape&Reel 9160179 DB_MS8886C 9160266  
8-channel MS8885B QFN28 Tape&Reel 9160151 DB_MS8885B 9160308  


Get an evaluation board (Board instructions) to check out the capabilities of this great touch switch!