Tactile Switch B3S Surface Mount Tactile Switch for High- Density Packaging 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 pr otect against static electricity Available in embossed taping packages for automatic insertion RoHS Compliant Ordering Information Model Without ground terminal With ground terminal Bags Embossed Tape Bags Embossed Tape Switch height Operating force (100 per bag) (1,000 per reel) (100 per bag) (1,000 per reel) 4.3 General-purpose: 160 g B3S-1000 B3S-1000P B3S-1100 B3S-1100P High-force: 230 g B3S-1002 B3S-1002P B3S-1102 B3S-1102P Note: Order in multiples of the quantities given for each package Important Note: Switches cannot be water-washed. Specifications Characteristics Contact form SPST-NO Switching capacity 1 to 50 mA, 5 to 24 VDC (resistive load) Contact resistance 100 m max. (rated: 1 mA, 5 VDC) Insulation resistance 100 M min. (at 250 VDC) Dielectric strength 500 VAC, 50/60 Hz for 1 minute 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. 100 G) max. 2 Malfunction: 100 m/s (approx. 10 G) max. Ambient operating temperature -25 to 70C (at 60% RH max.) with no icing or condensation Ambient operating humidity 35% to 85% (at 5 to 30C) Service life General-purpose type 500,000 operations min. High-force type 300,000 operations min. Weight Approx. 0.30 g Note: Data shown are of initial value. Operating Characteristics Characteristics General-purpose High-force Operating force (OF) max. 160 g 230 g Release force (RF) min. 20 g 50 g + 0.2 Pretravel (PT) 0.25 / mm -0.1 Tactile Switch B3S 249Engineering Data Operating Force vs. Stroke Construction (Typical Example) Plunger Cover Spacer Sealing rubber Contact dome Base Fixed contact Dimensions Note: 1. Unless otherwise specified, all units are in millimeters and a tolerance of 0.4 mm applies to all dimensions. 2. Terminal numbers are not indicated on this switch. With the switch turned over so that the logo mark OMRON is visible on the upper part of the rear side of the switch base, the terminal on the right of the logo mark is numbered 1 and that on the bottom right is 3. Accordingly, two terminals on the left side are numbered 2 and 4 respectively. Without Ground Terminal PCB Pad Terminal Arrangement B3S-1000 3.3 6 (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 1.3 9 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 0.1 0.7 0.7 Precautions Be sure to read the precautions common to all Tactile Switches, contained in the Technical Users Guide, Tactile Switches, Technical Information for correct use. 250 Tactile Switch B3S