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Electrically Conductive Ink Printing Rubber Keypad

Silicone Conduction Keypad
Electrically Conductive Printing Silicone Rubber keypad, also called Transfer Printing Electric Conduction Keypad, which choose conductivity ink instead of black carbon pills as silicone rubber keypad’s electroconductive point.

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Model:
7R9C1
Brand:
Better Silicone

Product Description

Electrically Conductive Ink Printing Keypad:
Electrically Conductive Printing Silicone Rubber keypad, also called Transfer Printing Electric Conduction Keypad, which choose conductivity ink instead of black carbon pills as silicone rubber keypad’s electroconductive point.

Why choose electrically conductive ink printing as the keypad contact dome?

1. Keypad electrically conductive zones is irregular, or O-ring / Rectangular Shaped for backlight.
Mostly silicone keypad choose black carbon pills to electric conduction.
However, some keypad conductive zones is irregular, specially about laser etched keypad and silkscreen silicone rubber keypad for Led backlight / backlit switch effects.
silicone Electrically Conductive Printing keypad

silicone Electrically Conductive Printing keypad

2. Save production cost:
Placed many quantity or many types of black carbon pills to produce elastomeric keypad which will affect the production efficiency.
If choose transfer conductive printing, workers just place elastomeric silicone rubber materials to produce keyboard that will save production time. Electrically Conductive Ink Printing can coat many types keypad contact zones at a time, and also that is auto-complete printing.
Rubber Conductive Keypad

Disadvantage:
1. Electrically conductive printing ink Keypad, which contact resistance is mostly higher than black carbon pill.
Black Carbon Pill Keypad contact resistance which is easy to control below 100 OHMS, some can up to 0-50 OHMS.
Electric conductive printing Keypad contact resistance, mostly is about 150 OHMS, and possibly up to 200 OHMS.
If need electric conductive printing ink keypad’s control contact resistance, not only need use more conductive materials as printing ink, but also need make precision assistant tooling and also improve the printing in electric conductive coated layer

2. Black Carbon Pill keypad is more strong and durable.
After a long time use, elastomeric keypad’s electrically conductive ink will removing, and also keypad contact resistance will getting higher.
If need improving the lifespan of transfer conductive printing keypad, one is use qualified electric conductive ink, and make sure conductive coating ink is dry enough after drying.
Electrically Conductive Keypad