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 

Linearization Factory linearized 

Tail Connection Solder-less design 

Electronics (3M MicroTouch Controller EX) 

Communication USB, Serial, USB HID Digitizer, Dual Mode (USB and Serial 

Dimensions 1.30" x 2.55" x 0.45" 

33.0 x 65.0 x 11.4 mm 

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 

Reliability 

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 

Mechanical 

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 Yes Compliant 

System Warranty 

5 years on touch system 

Unlimited touch warranty 

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