KTP-type

The KTP-type of keypad is an integration of the keytop and the basic silicone rubber dome switch embedded in an assembly frame with additional mechanical, acoustic or sealing functionality.
Symbols and legends are printed on the keytop in positive (symbol printed) or negative image (symbol transparent). The ink used is also based on silicone rubber and has a long-life due to the degree of cross-linking with the silicone key-top. For special long life requirements, special protective layers and coatings are available.

The KTP-type provides a dedicated switch solution.

Similar to the Inner-type, actuating the dome switch will push the electrical conductive contact element onto a contact pattern on the PCB or FPC and realise an electic switch operation. Various contact elements are available to meet specific electronic switching requirements.

KTP-type design examples
   
 Multicolour KTP-type
 Remote Control
 Transparent material
 backlit applications
   
 KTP-type with overlay caps
 
 Multicolour KTP-type
 Automotive RKE unit

Note:
Every item or numerical value indicated herein is measured by Shin-Etsu and out of guarantee.
Characteristics and graphs are for reference only. Actual resistances and forces are up to the design of substrates and assembly constructions. 
More information can be found in the design guides.
The quality of the assembled products is out of guarantee.
Please make sure to review the purpose and conditions of use and practice you own tests.
Industrial ownership like patent doesn't guarantee the usage of products.