We produce membrane keypads that meet your requirements in terms of design, printing and forms. At your request, we can integrate tactile feedback using metal dome or polydome technology, EMC shielding and LED keypad lighting. In addition, we deliver membrane keypads pre-installed on support plates or combined with customised housings or case fronts.

  • Nearly limitless possibilities for customised membrane keypads: wide range of forms and colours, as well as individual circuitry
  • Lightweight, thin, compact
  • Free design concept in terms of shape and printing
  • Individual tactile elements with metal or polydome
  • High chemical stability
  • Dust-proof and water resistant up to IP67
  • Long service life
  • Easy to clean
  • No wear and tear on the printing
  • EMC shielding
  • Keypad lighting using integrated LEDs
  • Pre-installed on support plates (e.g. aluminium)

  • Creation of prototypes, pre-production series and small batches
  • Construction
  • Production of drawings
  • 3D measurements of individual parts
  • Durable digital printing
  • Protection classes up to IP68
  • Enhanced keypad finish using high-gloss coating
  • Automatic assembly e.g. LED and SMD
  • Mechanical Fujitsu keypad for front covers

Technical specifications

  • Switching voltage: 25 V AC and 42 V DC
  • Switching current < 100 mA
  • Switching capacity < 1 W
  • Contact resistance: 10–500 Ω
  • Insulation resistance > 1 x 108 Ω
  • Service life > 1 x 106 switching cycles
  • Electrostatic strength Ustat = 15 kV
  • Bounce time < 5 ms
  • Electrical strength between any connections Up eff = 300 V
  • Contact travel: 0.3–0.6 mm
  • Actuating force: by choice
  • Operating temperature: -40°C to 70°C


Circuitry alternatives

  • Common control line
  • Matrix


Connection alternatives

  • Direct connections for zero insertion force connections (pitch: 0.5–2.54 mm) with carbon contacts
  • Indirect connection as a crimp connector

Arkadius Thomanek

Product Manager Keypads & Drive Engineering
Tel: +49 40 84 00 01-36


We are there to provide assistance when installing your specific keypad. Design and production take commercial aspects into account. You won’t be waiting long for the first prototype. Thanks to long-term manufacturing partnerships, we can offer short production times. Complete solutions, some of which include injection-moulded casings, are also available.


A success story says more than a thousand words.

A seat adjustment switch – ergonomic and matching the car design.

That’s when I called Elektrosil.

» More on Switches for Seats


We build sector-specific keypads for industrial, automotive, medical and home appliance applications. We provide you with input devices that meet the highest of demands – using interdisciplinary engineering and deep market knowledge to create the perfect solution. We offer the following customised keypads: