Solar Biotronic Laboratories Private Limited

Prabhat Road, Pune, Maharashtra

The working of these capacitive switcheskeyboards is based on Charge Detector (CD) technology. When any user touches the key switch area the capacitive charge from the users body is detected by a specially developed circuit, and the signal is passed on to the system. The solid state nature of the circuit makes the life of such a switch virtually infinite.

These Keyboards comprise of a snap dome switch and a gold plated glass epoxy PCB for base and circuit. Snap Dome Switches (Special SS Alloys) are mounted and sealed on a gold plated PCB to conduct the signals in the keyboard circuit. The switch contacts can be terminated on any type of solderable connector which can be then interfaced with the controller. This entire assembly is then covered by a polyester overlay using industrial grade adhesives.

TheseSealed Keyboard Panelsare comprise of a Snap Dome Switch and a Glass Epoxy PCB, which is used as a base and for the circuit. A layer of Polyester covers and seals this assembly using Industrial Grade Adhesives made by manufacturers like 3M, Avery Dennison, etc. These type of sealed keyboards panels can be offered in any size and shape and are made as per customer's specifications and requirements.

Industry :

Medical Electronics, CNC based Machine Tools, Process Controls, Defense Applications, etc.

Applications:

Heartbeat Monitors, CNC based Machining Centres, SPMs, Injection Moulding Machines, Artillery Firing Mechanisms, etc.

Technology :

TheseSealed Keyboard Panelsare comprise of a snap dome switch and a gold plated glass epoxy PCB for base and circuit. Snap Dome Switches (Special SS Alloys) are mounted and sealed on a gold plated PCB to conduct the signals in the keyboard circuit. The switch contacts can be terminated on any type of solderable connector which can be then interfaced with the controller. This entire assembly is then covered by a polyester overlay using industrial grade adhesives.

Overview

Sealed Keyboard Panels using Snap Dome Switches and PCB are used in harsh environments or in applications where the failure is just not acceptable. The Keyboard designs can be made as per customers' requirements size, shape, number of switches, as well as using any type of colour shades for the keys as well as the backgrounds. The switch / LED areas can be embossed to give a professional look to the panel. These sealed keyboard panels can also accommodate LEDs of various colours and shapes. Any solderable type of connector like Berg strips, FRC, Relimate, D Type etc. can be provided.

Features

• Gold plated contacts for superior switch performance.
• Industrial grade adhesives used to withstand harsh environmental factors.
• Polyester Overlay used to withstand even Industrial solvents.
• Overlay legends can be printed on keys as per Customer's requirements.
• Can accomodate LEDs / Components thus saving space inside the equipment.

These Capacitive Switch Panels are operated by just touching them with our fingers. As the Capacitive Switch Technology used is based on a solid state circuit, the life of these switches is virtually infinite and will last the life time of the product in which they are used. Capacitive touch switches can be offered on any di-electric panel like Plastic, Glass, Wood, Granite Tiles, etc. The Capacitive touch circuit can be embedded in the di-electric material itself so that the Capacitive switches remain unaffected by harsh environments. The switches can be offered as Momentary or in Latching mode. (Toggle).

Industry :

Medical Electronics, Process Controls, Hotels/Hospitality Sector, Consumer Electronics, etc.

Applications:

Medical Devices:Capacitive Touch Switch Module for Hospital Beds, Capacitive Touch Sensor switches for Patient Monitoring Systems, Remote Touch Switches, etc.

Elevator Controls:Capacitive Push Button Switches, In-Car Capacitive Switch Keyboards, etc.

Access Controls:Capacitive Proximity Sensor Switches, Capacitive Switch Keyboards, etc.

Lighting Controls:Capacitive Light Switches, Capacitive Touch Dimmer Switches, Capacitive Touch On/Off Switches, etc.

Electrical Appliances:Capacitive Touch Switches for Cooking Ranges, Capacitive Switch Keyboards for Refrigerators, Capacitive Remote Switches for Air Conditioners, etc.

Technology :

The Capacitive Switch Technology is based on Charge Detector (CD) Technology. When any user touches the key / switch / sensor area the capacitive charge from the users body is detected by a the Capacitive Switch circuit, and the signal is passed on to the system. The solid state nature of the circuit makes the life of such a switch virtually infinite.

Overview

Capacitive Touch Switches are one of the most versatile switches as they can be operated by a mere touch of the finger. As the Capacitive touch circuit can be embedded in any di-electric, it makes them impervious to all external factors like temperature, dust, humidity etc. As the Capacitive Touch Switch module does not have any contacts, the switches can easily last a lifetime. This has made Capacitive switches very popular in consumer electronics (Ipod), Kitchen Appliances (Cooking Ranges), Access Controls (Door Openers), Process Controls (Elevator Buttons), etc.

Features

• Infinite Life
• Toggle Switching Operations.
• Pulsed Operations.
• Direct interface of switches with user's system via UART / I2C./ RS 232 / Parallel ports etc.
• Back lit switches.
• In built LED Driver for visual feedback which saves user end I/O ports.
• Switch Operation through any dielectric like Plastic, Glass, Wood, Granite, etc.

These Keyboards comprise of a snap dome switch and a gold plated glass epoxy PCB for base and circuit. Snap Dome Switches (Special SS Alloys) are mounted and sealed on a gold plated PCB to conduct the signals in the keyboard circuit. The switch contacts can be terminated on any type of solderable connector which can be then interfaced with the controller. This entire assembly is then covered by a polyester overlay using industrial grade adhesives.

Metal Keyboards are made using stainless steel material or aluminium which makes them very tough and can be used in very harsh environments. The switch elements are embedded inside the stainless steel or aluminium due to which they are completely protected from any external abuse. Thus these are also termed as vandal proof keyboards.

These Silicon Rubber Keyboards comprise of a Snap Dome Switch and a Glass Epoxy PCB, which is used as a base and for the circuit. A layer of Silicon material covers and seals this assembly using Industrial Grade Adhesives. These type of sealed keyboards can be offered in any size and shape and are made as per customer's specifications and requirements. Silicon Keyboards can also be offered by using a carbon contact instead of a snap dome arrangement. However, in this case the overall life of the switch will be relatively lower.