Elastomeric keypads from Memtron Input Components provide long operational life and excellent tactile feedback.

OVERVIEW

Elastomers (or silicone rubber keypads) offer an alternative look and feel to traditional polyester or polycarbonate graphics. Relatively inexpensive and very reliable, elastomeric keypads from Memtron Input Components provide long operational life and excellent tactile feedback. A number of enhancement and functionality opportunities exist— from legending and backlighting treatments to design shape, height, and texture options. Memtron also provides a variety of abrasion resistant coatings and treatments to insure long life without noticeable wear.

TECHNOLOGY DESCRIPTION

• Elastomeric Silicone Rubber Keypads: Easily interface with membrane switches, printed circuit boards and flex circuits utilizing polyester domes, stainless steel domes, carbon pills or non-tactile constructions.
• Carbon Pill Elastomers: Integrate the electrical contact circuit into the rubber keypad that interfaces directly with a polyester, polyimide or printed circuit board lower circuit.
• Abrasion Resistant Coatings and Treatments: Are available in many varieties and can be applied to the surface of elastomers to insure long life without noticeable wear.
• Design Shape, Height, and Texture: Options are available with elastomeric keypads, offering the OEM customer several choices to enhance the look of the input device.
• Legending and Backlighting Techniques: In a variety of treatments are available, including screen-printing and laser etching.

SPECIFICATIONS AND SELECTION GUIDE - ELASTOMERIC KEYPADS:

• Electrical

• Contact Resistance - Elastomer Assemblies: 100 Mohms
• Contact Rating: 30 mA @ 12V DC .5 sec (H depends on size and configuration of circuits)
• Contact Bounce: 1 min. @ 500V RMS
• Tensile Strength (kg/cm2): 55-75 depending on durometer
• Insulation Breakdown: 26k v/mm
• Mechanical

• Actuation Force: 20-350 grams
• Key Stroke: 0.25 – 5.0 mm
• Operating Life: 1 million actuations (typical)
• Durometer – Typical 65 ± 5: 40-80 ± 5
• Environmental

• Operating Temperature: -30º - +180ºC
• Storage Temperature: -42º - +250ºC
• UL Flammability Rating: 94HB
• Durability

• Dielectric Strength: >1 min. @ 500V RMS
• Tensile Strength (kg/cm2): 55-75 depending on durometer
• Insulation Breakdown: 26k v/mm

| Input Technology Group Esterline Corporation • Memtron Input Components • 530 North Franklin Street • P.O. Box 207 • Frankenmuth, MI 48734 • Tel: 989-652-2656 • Fax: 989-652-2659 • E-Mail: sales@memtron.com • Web Site: www.memtron.com |