A membrane switches area low powered thin and flexible electrical switches which are designed to integrate with machine to perform specific functions such as turning circuit On and Off. Membrane switches are printed circuits that require figure pressure to open and close the circuit. Membrane switches functions as a normally open, momentary contact, low voltage, pressure sensitive circuit.
Thin, 4-9 layers of many different materials and adhesives can be used in construction of a membrane switches. Membrane switches design can be integrated to use with various overlay materials such as PC and PET. It can be directly applied even on slightly curved surfaces.
Membrane switches designs are becoming increasingly more sophisticated every day. The simple, versatile, durable and economical design of a custom membrane switches makes it a superior alternative to the mechanical switches. Verities of textures and flexibility are the strongest suit of membrane switches and can be easily tailored to the specifics of your project.
| Environmental Parameters | |
|---|---|
| Operating Temperature | (-30 °C to 70 °C) |
| Storage Temperature | (-40 °C to 80 °C) |
| Relative Humidity (while operating) | 90 to 95 % (at 40 °C for 240 hr) |
| Degree of Protection | IP65 (from the front on request) |
| Electrical Parameters | |
|---|---|
| Contact Arrangement | Normally Open |
| Operating Voltage | 35 VDC |
| Operating Current | ≤ 100 mA |
| Operating Power | 1 W (resistive circuit) |
| LED Operating Voltage | 1.9 V to 4.0 V |
| LED Operating Current | 20 mA |
| Closed Circuit Resistance | 10 Ω to 500 Ω |
| Open Circuit Resistance | 10 MΩ |
| Contact Resistance | 0.5 Ω to 100 Ω |
| Dielectric Ink Withstand Voltage | 1 KVDC (b/w adjacent traces) |
| Substract Material Withstand Voltage | 2 KVDC, 250 VAC (at 50-60 Hz, for 1 min) |
| Substract Material Capacitance | ≤ 25 pF |
| Substract Material Impedance | 100 MΩ at 250 VDC |
| Static Voltage | 10 KVDC |
| Isolation Voltage | 1 KVDC (for 1 sec) |
| Mechanical Parameters | ||
|---|---|---|
| Maximum Size of Keypad | 300 mm x 450 mm | |
| Minimum Thickness of Keypad | 0.8 mm |
|
| Dome Dimensions | Poly Dome | 4 to 12 |
| Metal Dome | 6 to 15 |
|
| Minimum Distance b/w Keys | Poly Dome | 8 mm |
| Metal Dome | 10 mm |
|
| Actuation Force | Non-Tactile | 50 g to 300 g |
| Tactile | 150 g t0 550 g |
|
| Switch Stroke | Non-Tactile | 0.05 mm to 0.5 mm |
| Tactile | 0.1 mm to 1.5 mm | |
| Snap Ratio (positive click) | Non-Tactile | 40 to 60 % |
| Tactile | 50 % min. | |
| Life Expectancy | Non-Tactile | ≥ 5 Million Actuations |
| Tactile | ≥ 1 Million Actuations | |
| Contact Bounce | ≤ 5 milliseconds | |
| Vibration and Shock Resistance | 20 G's Max. | |
| PET Circuit Tail Flexible Feature | 180° to any angle | |
| Manufacturing Tollerances | |
|---|---|
| Color to Color Resistance | ± 0.25 mm |
| Print to Die Resistance | ± 0.5 mm |
| Size Tolletance | ± 0.3 mm |
| Height Tollerance | ± 0.3 mm |
| Tooling Tollerance | ± 0.001 mm |
| Die Cutting Size and Position | ± 0.4 mm |
| Actuation Force Tollerance | ± 20 g |
- Custom design
- Light weight
- Easy to install
- Superior finish
- Highly durable
- Greater reliability
- Selective texturing
- Eye catching esthetic
- More effective and robust
- Better dust, water and chemical resistance
- Brail incorporation
- Flexible
- Uniform colors
- User friendly
- Preciously engineered
- High functionality
- Protection against weather effects
- IP protection
- Verity of materials to choose from
- Responsive user system
- Hermitically sealable
