Crisp action switch boasts long life

Omron Electronic Components has announced a new IP67 sealed tactile switch said to offer long term reliability and a crisp clicking switch action.

Sealed to IP67 (IEC60529), the Omron B3SL boasts enhanced resistance to dust penetration, helping ensure that its rated life of 100,000 operating cycles can be achieved even in harsh conditions. The vertically operated switch, which features an operating force of 1.96N, has a precise, crisp clicking action with a medium stroke, achieved using a rubber plunger and a pre-travel of 0.3mm.

Omron European product marketing manager, switches, Andries de Bruin, said: “The B3SL takes our tactile range into medical and process control applications including keyboards with a membrane overlay or standalone keypads. The IP67 sealed versions are protected against contamination of the switching contacts in dusty environments and allow immersive cleaning of the PCB.”

Measuring 6.2 by 6.5 by 3.4mm, the B3SL is rated for switching currents of 1mA at 5V DC to a maximum of 50mA at 12V DC with a resistive load and an insulation resistance of 100MOhms at 100V DC and a contact resistance of 100mOhms.