New Product News SMD Tactile Switch B3FS-4 12 12-mm Surface-mounting Switches for High-density Mounting Surface-mounting device of B3F-4000 series. Distinctive snapping action and extended mechanical/electrical durability. Available in embossed taping packages for automatic mounting. B32-series Key Tops mount to models with projected plungers. RoHS Compliant Ordering Information List of Models 12 12 mm Models Embossed taping Type Contact material Plunger type Height Operating force (OF) Plunger color Model Minimum packing unit 1.47 N B3FS-4002P 4.3 mm 1,000 2.55 N B3FS-4005P B3FS-4000 Series Silver plated Black 1.47 N B3FS-4052P 7.3 mm 500 2.55 N B3FS-4055P Note: Order in multiples of the minimum order unit. Switches are not sold individually. Specifications 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) -25 to +70 degC at 60%RH max. Ambient operating temperature (with no icing or condensation) Ambient operating humidity 35 to 85%RH (at +5 to +35 degC) Contact configuration SPST-NO Contact resistance (initial value) 100 m max. Insulation resistance 100 M (at 250 VDC with insulation tester) Dielectric strength 500 VAC 50/60 Hz for 1 min Vibration resistance Malfunction: 10 to 55 Hz, 1.5-mm double amplitude 2 Destruction: 1,000 m/s approx. 100 G max. Shock resistance 2 Malfunction: 100 m/s approx. 10 G max. 3,000,000 operations min. (OF: 1.47 N 150 gf ) Durability 1,000,000 operations min. (OF: 2.55 N 260 gf ) Weight Approx. 1 g Degree of protection IEC IP00 Washing Not possible Operating Characteristics Type B3FS-4000 Series Operating force (OF) 1.47 N 2.55 N Item Model B3FS-40 2P B3FS-40 5P Operating force (OF) 1.470.49 N 15050 gf 2.550.69 N 26070 gf Releasing force (RF) 0.15 N 15 gf min. 0.29 N 30 gf min. Pretravel (PT) 0.250.15 mm 0.250.15 mm SMD Tactile Switch B3FS-4 1 Dimensions Note: 1. All units are in millimeters unless otherwise indicated. Unless otherwise specified, a tolerance of 0.4 mm applies to all dimensions. 2 1 Note: 2. The numbers used for terminals in the following graphics are indicated in the Bottom View diagram in the right. In this diagram, the Switch 4 3 (BOTTOM VIEW) is rotated so that the terminals are on the right and left-hand sides, and the OMRON logo appears the right way up. Flat type B3FS-4002P 7.1 dia. 0.2 PCB Pad (Example) Terminal Arrangement/ 12 B3FS-4005P (TOP VIEW) Internal Connection (PCB t= 1.6) (Top View) 1 0.2 0.2 12 5 4 3 1 2.60.1 7.40.1 2 1 0.1 12 0.4 max. 16.60.1 0.2 4.3 0.1 15 Projected type B3FS-4052P 7.1 dia. PCB Pad (Example) Terminal Arrangement/ 120.2 B3FS-4055P (TOP VIEW) Internal Connection (PCB t= 1.6) (Top View) 1 0.2 0.2 12 5 4 3 1 0.1 0.1 2.6 7.4 2 1 0.1 12 3.853.85 0.1 16.6 0.4 max. 7.3 4.3 15 0.1 Key Tops B32-series Key Tops are available for projected plungers. Refer to the Datasheet of B32 for details. Precautions Be sure to read the safety precautions common to all Tactile Switches for correct use. 2 SMD Tactile Switch B3FS-4
