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Eurocoin Components Store

  /    /  Featured, Surface Capacitive Kits, Touchscreens  /  21.5″ MicroTouch Surface Capacitive Touch Kits

21.5″ MicroTouch Surface Capacitive Touch Kits

  • Size: 21.5″ (21.78 W)
  • Touchpoint: 1
  • Thickness: 3.18mm
  • Interface: USB

Product description

21.5″ MicroTouch Surface Capacitive Touch Kits from Eurocoin Components

MicroTouch 3M Replacement Touch Systems has more than 25 years of surface capacitive technology expertise and specifically designed the MicroTouch 3M  System SCT3250EX to meet the performance requirements of display applications ranging from 5.7 to 32 inches. As an all-glass design, the SCT3250EX touch system offers light transmission up to 11.5% better than typical resistive sensors and 3.5% better than typical surface capacitive sensors (based on published specifications).

With the combination of the 3M™ ClearTek™ proprietary hard coat and a scratch-resistant top coat, the 3M™ MicroTouch™ Sensor SCT3250 offers superior surface durability compared to typical resistive and surface capacitive solutions. This surface durability feature helps the SCT3250 touch sensor support heavy-use applications while maintaining its functional, optical and aesthetic characteristics.

In addition to the superior MicroTouch 3M Replacement SCT3250 touch sensor design, the MicroTouch 3M Replacement Controller EX with its dedicated custom ASIC sets the performance standard for capacitive sensing electronics and offers industry-leading ESD protection (based on published specifications).

The EX controller’s proprietary firmware and patented algorithms dynamically adapt to changes in the application’s environment to help maintain the initial video alignment of the display for the life of the product. And, due to the dedicated ASIC, the SCT3250EX touch system has a “minimum touch duration” that is 50% faster than typical surface acoustic wave and surface capacitive solutions (based on published specifications)

Order Information:

Touch Kit: 31132711 21.5″ MicroTouch 3M Replacement SCT Touch Glass + USB Controller 98-1100-0928-3

USB Cable: 31130117 Controller to Type A USB 2.4 meter (White) – 7312256

Contact us today  – Click Here

MicroTouch 3M Replacement

MicroTouch 3M Replacement

Key Specifications

Full Feature List

System Performance

  • Light Transmission 91.5% (±1.5%)
  • Input Method Finger contact
  • Accuracy >99% of true position
  • Resolution 1024 x 1024, but capable of 16K x16K when used with EX controllers
  • Lineariza?on Factory linearized
  • Tail Connection Solder-less design

Electronics (3M MicroTouch Controller EX)

  • Communica?on USB, Serial, USB HID Digitizer, Dual Mode (USB and Serial
  • Dimensions 1.30" x 2.55" x 0.45"
  • Operating Current USB: 75 mA (typical), Serial: 85 mA (typical)
  • Sleep Current < 500 uA
  • Power Connection USB: 5Vdc ± 5% 75 mA Serial: 5-12Vdc ± 5% 85 mA
  • Connectors 5-pin locking AMP (Touch side) 5-pin Molex (COM side)
  • ESD ±8KV Contact, ±27KV Air
  • Point Speed (PPS) 200 pps
  • Minimum Touch Time 5.4 ms
  • MTBF >700,000 hours


  • Glass Thickness 0.125" (3.18 mm)
  • Display Size Supported 5.7" (144.78 mm) to 32" (812.80 mm) (standard and wide formats)
  • Surface Scratch Hardness MoHS 7 or higher to induce a functional failure
  • Scratch Resistance 3M™ ClearTek™ hard coat Sealing NEMA 4X / IP66, complete water-resistant seal compatible
  • Cleaning Water, isopropyl alcohol, or similar non-abrasive cleaners
  • RoHS Directive Compliant

Operating Systems Supported

  • Windows 7 (32-and 64-bit)*
  • Windows Vista (32-and 64-bit)
  • Windows XP (32-and 64-bit)
  • Windows 2000, Server 2003, Server 2008 (32-and 64-bit)
  • Windows 98, 95, ME, NT 4.0, NT 3.5, 3.1x (32-bit)
  • Windows CE, XPe, WePOS (32-bit)
  • Linux Kernel 2.6, Kernel 2.4 (serial only)**
  • Apple OSX (UPDD driver)**
  • * 3M MicroTouch System SCT3250EX HID is Windows 7 Logo Compatible
  • ** Limited MT7 features supported


  • Surface Obstructions Withstands most surface contaminants
  • Chemical Resistance ASTM-D-1308-02 and ASTM-F-1598-95
  • Liquid Resistance Liquids on screen do not impede touch performance
  • Operating Temperature -40° C to 70° C for the touch screen
  • Storage Temperature -50°C and 85°C
  • Humidity Up to 90% RH from 0º C to 35º C, non-condensing

    Eurocoin Limited

    Head Office – Germany
    Eurocoin GmbH
    Lorenz-Huber-Str. 13, 85540 Haar

    +49 89 4623 070


    Head Office – UK
    Eurocoin Ltd
    Units 2-4 Travellers Close, Welham Green, AL9 7JL

    Tel: +44 1707 280 028
    Fax: +44 1707 280 030