3M MicroTouch System SCT3250CX

The Clear Solution for Small Touch Applications (5.7" to 12.1" display sizes)

3M MicroTouch System SCT3250CX Touch Screen Glass Sensor

3M MicroTouch SCT3250CX Touch Screen System Prices

Data Sheet (Pdf 176 KB)

  System Perfomance

  • Light Transmission 91.5% (±1.5%)
  • Input Method: Finger input
  • Accuracy: >98.5% of true position
  • Resolution: 1024 x 1024
  • Linearization: Factory linearized
  • Tail Connection: Solder-less design

  Electronics (3M MicroTouch Controller CX)

  • Communication: USB HID
  • Dimensions: 0.80" (20.32 mm) x 1.90" (48.26 mm) REF
  • Operating Current: 25 mA (typical)
  • Sleep Current: < 500 uA
  • Power Connection: USB BUS (5V)
  • Connectors: 5-pin AMP (Touch side)
               5-pin Molex (COM side)
  • ESD: ±8KV Contact, ±20KV Air
  • Point Speed (PPS): 100 pps
  • Minimum Touch Time: 22 ms
  • MTBF: >900,000 hours

  All-Glass Solution with 3M ClearTek Hard Coat

  • Up to 11.5% better light transmission than typical resistive solutions
  •  offers superior display performance
  • Superior surface durability is designed to maintain optical and functional performance over the life of the product
  • All-glass sensor is unaffected by spacer dots or damaged films to provide increased reliability and accuracy

  3M MicroTouch Electronics CX

  • Small form factor for compact devices with limited space
  • Single IC solution minimizes component count and achieves higher MTBF
  • Up to 25% less power consumption for power-constrained applications

  Scratch-resistant Top Coat

  • Requires MoHS 7 or higher to induce a functional scratch ensuring reliable performance in high-use environments.
  • Smooth surface allows for improved scroll performance
  • <>Durable finish provides excellent chemical resistance and an
    easy-to-clean surface


  • 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: -20° C to 65° C
  • Storage Temperature: -50° C and 85° C
  • Humidity: Up to 90% RH from 0° C to +35° C, non-condensing


  • Glass Thickness: 0.125" (3.18 mm)
  • Display Size Supported: 5.7" (144.78 mm) to 12.1" (307.34 mm) (standard and wide formats)
  • Surface Scratch Hardness: MoHS 7 or higher to induce a functional failure
  • Scratch Resistance: Proprietary top coat
  • Sealing: NEMA 4X / IP66
  • Gasketing: Complete water-resistant seal compatible
  • Cleaning: Water, isopropyl alcohol, or similar non-abrasive cleaners
  • RoHS Directive compliant: Yes