Sealed Tactile Switch (SMT) B3SN Sealed Surface-mounting Switches Sealed Structure for High Reliability. Available on Embossed Tape Sealed construction conforming to IP67 (IEC- 60529) provides high reliability in locations exposed to dust or water. (* Excluding the termi- nal section.) Available with ground terminals for protection against static electricity. Use of a stainless-steel spring provides a crisp clicking action. Gold plated version enables stable contact and insulation over long periods of time. Available in embossed taping packages for auto- matic mounting. A small package containing 100 embossed taping reels is available,in addition to the standard pack- age. RoHS Compliant List of Models 6 6 mm Models Without ground terminal With ground terminal Bags Embossed taping Bags Embossed taping Model Minimum Model Minimum Model Minimum Model Minimum Contact Operating Plunger packing packing packing packing Operation type material Height force (OF) color unit unit unit unit B3SN-3000 Silver 3.1 mm 1.57 N Ivory B3SN- 100 pcs B3SN- 3,000 pcs B3SN- 100 pcs B3SN- 3,000 pcs Series plated 160 gf 3012 3012P 3112 3112P B3SN- 100 pcs B3SN- 100 pcs 3012P-R100 3112P-R100 B3SN-G Series Gold 1.76 N Black B3SN- 3,000 pcs --- --- --- --- --- --- plated 180 gf 3012P-G Gold-plated Note: Switches in bags must be ordered in units of 100 pieces, and Switches on embossed taping must be ordered in units of 3,000 piec- es. Individual Switches are not sold individually. Ratings/Characteristics Rating (resistive load) 1 to 50 mA, 3 to 24 VDC Minimum applicable load (reference value) 10 A at 1 VDC (resistive load) Ambient operating temperature -25C to +70C at 60%RH max. (with no icing or condensation) Ambient operating humidity 35% to 85% (at +5 to +35C) Contact form SPST-NO Contact resistance (initial value) 100 m max. Insulation resistance 100 M min. (at 250 VDC with insulation tester) Dielectric strength 250 VAC, 50/60 Hz for 1 min Bounce time 5 ms max. Vibration resistance Malfunction: 10 to 55 Hz, 1.5-mm double amplitude 2 Shock resistance Destruction: 1,000 m/s approx. 100G max. Durabulity 100,000 operations min. Weight Approx. 0.2 g Degree of protection IEC IP67 Washing Possible 1B3SN B3SN Operating Characteristics Item Type B3SN-3000 Series B3SN-G Series Operating force (OF) 1.570.49 N 16050 gf max. 1.760.59 N 18060 gf max. Releasing force (RF) 0.29 N 30 gf min. Pretravel (PT) 0.250.15 mm 2