Sealed Tactile Switch (SMT) B3S Surface-mounting Switches with a Sealed Structure for High Reliability. Available on Embossed Tape Sealed construction conforming to IP67 (IEC-60529) provides high contact reliability in locations exposed to dust or water. (* Excluding the terminal section.) Surface-mounting terminals for high-density mounting. Ground terminal available to protect against static electricity. Available in embossed taping packages for auto- matic mounting. 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 Operation Contact Operating Plunger packing packing packing packing type material Height force (OF) color unit unit unit unit B3S-1000 Silver 4.3 mm 1.57 N Ivory B3S-1000 100 pcs B3S-1000P 1,000 pcs B3S-1100 100 pcs B3S-1100P 1,000 pcs Series plated 160 gf max. 2.26 N Yellow B3S-1002 B3S-1002P B3S-1102 B3S-1102P 230 gf max. Note: Switches in bags must be ordered in units of 100 Switches, and Switches on embossed taping must be ordered in units of 1,000 Switches. 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 500 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. 2 Malfunction: 100 m/s approx. 10G max. Durability Standard force models (1.57 N 160 gf ): 500,000 operations min. High-force models (2.26 N 230 gf ): 300,000 operations min. Weight Approx. 0.3 g Degree of protection IEC IP67 Washing Possible Operating Characteristics Type B3S Series Operating force (OF) 1.57 N 2.26 N Item Model B3S-1 00 B3S-1 02 Operating force (OF) 1.57 N 160 gf max. 2.26 N 230 gf max. Releasing force (RF) 0.2 N 20 gf min. 0.49 N 50 gf min. +0.2 Pretravel (PT) 0.25 / mm 0.1 1B3S B3S Model Structure Plunger Cover Spacer Sealing rubber Contact dome Base Fixed contact Dimensions (Unit: mm) Note: The numbers used for terminals in the following graphics are indicated in the Bottom View diagram below. In this 2 1 diagram, the Switch is rotated so that the terminals are on the right and left-hand sides, and the OMRON logo appears 4 3 (Bottom View) the right way up. Without Ground Terminal PCB Pad Terminal Arrangement B3S-1000 6 3.3 (Top View) /Internal Connections 0.7 dia. B3S-1002 (Top View) 9.5 6.6 4.5 6.4 4 3 4.5 4.3 2 1 3.4 9 1.3 0.1 0.7 0.7 With Ground Terminal PCB Pad Terminal Arrangement 3.3 6 (Top View) /Internal Connections B3S-1100 0.7 dia. (Top View) B3S-1102 9.5 6.6 4.5 6.4 4 3 4.5 0.7 3.25 2 1 4.95 1.5 5 1.3 4.3 1.3 3.4 9 0.2 0.1 0.7 0.7 Note: Unless otherwise specified, a tolerance of 0.4 mm applies to all dimensions. No terminal numbers are indicated on the Switches. Precautions Be sure to read the safety precautions common to all Tactile Switches for correct use. 2