B3W seal structure to ensure the reliability trickle through forest Electronics offers B3W features: ● equivalent seal structure IP67 (IEC-60529), or even more in the dust with water in places where it can achieve high reliability. ● Ultra-slim, with 6mm square, 12mm square two kinds. ● Measures to facilitate the electrostatic type with ground terminals have also been serialized. ● can be installed with the key top (B32 series) convex-shaped plunger. Type ground terminal unpackaged form bags (100) type plunger species highly action force (OF) plunger color 12mm square convex B3W-4000 Series 7.3mm 3.43N yellow B3W-4055 Rating / performance electrical specifications DC5 ? 24V 1? 50mA resistive load Minimum applicable load (reference value) DC1V 10uA ambient temperature 25? + 70 ° C, 60% RH or less (with no icing or condensation) Ambient humidity 35? 85% RH (+ 5? + 35 ° C) contact structure 1a normally open contact 100mΩ contact resistance (initial value) (DC5V 1mA energized) Insulation resistance 100MΩ or more (DC250V megger) Withstand voltage AC500V 50 / 60Hz 1min time 5ms or less shock vibration malfunction ? 10 55Hz 1.5mm double amplitude maximum impact durable 1,000m / s2 malfunction maximum 100m / s2 life B3W-4000 series; more than 1 million times (3.43N type) 12mm square Weight: about 1g operating characteristics of the type of action B3W-4000 Series force (OF) 3.43N type action force (OF) 3.43N maximum restoring force (RF) 0.49N minimum pre-travel (PT) 0.3 (+ 0.2, -0.1) mm