KTP-type of keypad

The KTP-type of keypad is an integration of the keytop and the basic silicone rubber dome switch.

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.

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