WorldWide WCE, known for its constant innovation in the industrial sector, has launched a new product in its rubber keypad segment: a tamper contact. This component, made of silicone rubber, is presented as an economical and reliable alternative for tamper protection in a wide range of devices, such as alarm systems, smart meters or, for example, toll booths.
The functional principle is reliable: two (or more) contact surfaces on the device board are bridged by a carbon pellet. This carbon pellet is located at the end of a silicone rubber plunger, which is attached to the part of the housing to be monitored. In this way, the silicone rubber plunger generates the contact pressure as long as the housing is not damaged or tampered with. If the relevant part of the housing is removed, the carbon pellet is released from the circuit board and the switching state changes from “closed” to “open”. The principle therefore corresponds to a normally open contact.
WorldWide WCE's new tamper contact has a simple structure and can be customized. The travel must be at least 1mm, and a contact resistance of a few 100mOhms is possible. This innovation represents a major advance in device security, providing a low-cost yet highly effective solution to prevent unauthorized tampering.
Innovation in Security