Overview:

Offering excellent durability and resolution, resistive technology is used in a variety of applications and environments. Resistive touchscreens consist of a glass panel with a coating of uniform resistivity, plus a polyester cover sheet which is tightly suspended from the top of the glass and separated from it by small, transparent insulating dots. The cover sheet has a hard, durable coating on the outer side, and a conductive coating on the inner side. When touched, the conductive coating makes electrical contact with the coating on the glass, and a touch is registered by the analog controller.

Benefits of Touchscreen technology:

• Touchscreens enable first-time users to interface with computers instantly, without any operator training whatsoever
• Touchscreens virtually eliminate operator errors because users make selections from clearly defined menus
• Touchscreens eliminate keyboards and mice, which many novice users find intimidating and cumbersome to use
• Touchscreens are rugged enough to stand up to harsh environments where keyboards and mice can become damaged
• Touchscreens provide fast access to all types of digital content
• Touchscreens ensure that no space is wasted because the input device is completely integrated into the monitor.

Features:

• Proven Resistive Technology
• Simplicity of Interface Electronics
• Durable Plastic Construction
• Less Susceptible to Accidental Touch
• Ability to use Finger or Stylus to Activate Touchscreen
• High Linear Analog Output

Resistive touchscreens deliver cost-effective, consistent and durable performance in environments where equipment must stand up to contaminants and liquids, such as in restaurants, factories, and hospitals. Disadvantages of resistive touchscreens include only 75% optical transparency and the fact that a sharp object can damage the resistive layers.

Specifications:

• Touch Screen: 4-Wire Analog Resistive
• Diagonal Size: 3.4"
• Overall Outline Dimensions (WxHxD mm): 85.0 ± 0.2 x 58.8 ± 0.2 x 1.5 ± 0.15
• Viewing Area (WxH mm): 80.60 x 51.40
• Active Area (WxH mm): 72.98 x 48.98
• Glass: ITO Glass, 1.1 mm
• PET (ITO Film) Front Surface: 188 um
• Connector: FPC, 4-Pin, 1.00 mm pitch
• Optical Specifications:
  • Film type: Anti-glare, Anti-reflective
  • EM/RFI Shielding
  • Contrast Enhancement Filter (CEF) and/or Circular Polarizer
  • Glass, Acrylic or Polycarbonate Backer
  • Light Transmission: more than 75%
• Electrical Specifications:
  • Operation Voltage: 5V DC, 1mA
  • Insulation Impedance: 20MΩ or more @ 25V(DC)
  • Linearity: 98.5% (bias less than 1.5%)
  • Chattering Time: 10 msec or less
• Mechanical Specifications:
  • Input Method: finger, pen or gloved hand
  • Touch Activation Force: 40 grams or less with Æ 2mm Manuscript pen
  • Surface Hardness: 3H (Pencil Test) & Hard Coated ITO PET
• Reliability:
  • Operation Environment: -20°C ~ 70°C
  • Storage Temperature: -30°C ~ 80°C
  • Humidity: 60°C, 90% RH 120 HR
  • Touch Durability: more than 1 Million touches in a single location
  • Surface scratch: 500K (250g, 60mm/s)
  • Surface pitting: 10M (250g at 2 times/s)
  • NEMA 4 Capable
  • Warranty: 1 year

Recommended Hardware (sold separately):

• 4-Wire TouchScreen Controllers: SLT-TP05-USB, SLT-TP05-RS232, SLT-TP05-RS232N
• 1.00 mm to 2.54 mm 4-Wire Adapter Cable - P/N: TXC-4W-1.0*

Recommended Connectors:

Part No.		Pitch	Description	Drawing (PDF)
	Molex Part # 052089-0419	1.00 mm (0.039 in)	FFC/FPC Connector, Through-Hole, Right Angle, Low Profile, ZIF, Top Contact Style Receptacle, 4 Circuits, Lead-free	View
	Molex Part # 052043-0419	1.00 mm (0.039 in)	FFC/FPC Connector, Through-Hole, Right Angle, ZIF, Bottom Contact Style Receptacle, 4 Circuits, Lead-free	View
	Molex Part # 052207-0485	1.00 mm (0.039 in)	FFC/FPC Connector, SMT, Right Angle, ZIF, Top Contact Style Receptacle, 4 Circuits, Lead-free	View

Documents:

3.4-inch Touch Panel Drawing (pdf - 486 KB)

4-Wire Resistive TouchScreen Specs (pdf - 283 KB)