12 x 12 SMD Tactile Switch B3FS-4 Surface-mounting Switches with 12 x 12 mm size * Surface-mounting device of B3F-4 series. * Distinctive snapping action and extended mechanical and electrical service life. * Available in embossed taping packages for automatic mounting. * B32 series Keycaps are available for the projected plunger models * RoHS Compliant Ordering Information Type Plunger 12 x 12 mm (Flat) 12 x 12 mm (Projected Plunger) Height Operating force (OF) Plunger Color 150 gf (1.47 N) 260 gf (2.55 N) 150 gf (1.47 N) 260 gf (2.55 N) 4.3 mm 7.3 mm Model Embossed tape Quantity per reel B3FS-4002P 1,000 B3FS-4005P Black B3FS-4052P 500 B3FS-4055P Note: Order in multiples of the minimum order unit. Switches are not sold individually. Specifications Characteristics Contact form Switching capacity Minimum permissible load (reference value) Contact resistance Insulation resistance Dielectric strength Vibration resistance Shock resistance Ambient operating temperature Ambient operating humidity Service Life Weight SPST-NO 1 to 50 mA at 5 to 24 VDC (resistive load) 10 A at 1 VDC (resistive load) 100 m max. (rated: 1 mA at 5 VDC) 100 M (at 250 VDC) 500 VAC, 50/60 Hz for 1 min. Malfunction: 10 to 55 Hz, 1.5-mm double amplitude Destruction: 1,000 m/s2 (approx. 100 G) max. Malfunction: 100 m/s2 (approx. 10G) max. -25 to 70C (at 60% RH max.) with no icing or condensation 35% to 85% (at 5 to 35C) 3,000,000 operations min. (OF: 150 gf (1.47 N)) 1,000,000 operations min. (OF: 260 gf (2.55 N)) Approx. 1g Note: Data shown are of initial value Operating Characteristics Characteristics Operating force (OF) Release force (RF) min. Pretravel (PT) B3FS-4002P B3FS-4052P B3FS-4005P B3FS-4055P 150 50 gf (1.47 0.49 N) 260 70 gf (2.55 0.69 N) 15 gf (0.15 N) 30 gf (0.29 N) 0.25 0.15 mm 12 x 12 SMD Tactile Switch 1 Dimensions 2 1 Note: 1. Unless otherwise specified, all units are in millimeters and a tolerance of 0.4 mm applies to all dimensions. 4 3 2. Terminal numbers are not indicated on this switch. With the switch turned over so that the logo mark "OMRON" is (BOTTOM VIEW) 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. B3FS-4002P B3FS-4005P 7.1 dia. PCB Pad (Example) 120.2 (Top View) Terminal Arrangement/ Internal Connection (Top View) 1 120.2 50.2 1 4 3 2 1 2.60.1 7.40.1 120.1 16.60.1 0.4 max. 4.30.2 15 0.1 B3FS-4052P B3FS-4055P 7.1 dia. PCB Pad (Example) 120.2 (Top View) Terminal Arrangement/ Internal Connection (Top View) 1 120.2 50.2 1 3.85 0.4 max. 7.3 4.3 0.1 2 B3FS-4 15 4 3 2 1 2.60.1 7.40.1 3.85 120.1 16.60.1 Precautions Be sure to read the precautions common to all Tactile Switches, contained in the Technical User's Guide, "Tactile Switches, Technical Information" for correct use. Precautions for Correct Use Soldering RoHS Compliant General Precautions Before soldering the Switch on a multilayer PCB, test to confirm that soldering can be performed properly. Otherwise the Switch may be deformed by the soldering heat on the pattern or lands of the multilayer PCB. Do not solder the Switch more than twice, including rectification soldering. An interval of five minutes is required between the first and the second soldering, or it may result in melting housing and deterioration of operating characteristics. Reflow Soldering (Surface Mounting) Temperture (C) Solder the terminals within the heating curve shown in the following diagram. The "RoHS Compliant" designation indicates that the listed models do not contain the six hazardous substances covered by the RoHS Directive. Reference: The following standards are used to determine compliance for the six substances. Lead: Mercury: Cadmium: Hexavalent chromium: PBB: PBDE: 1,000 ppm max. 1,000 ppm max. 100 ppm max. 1,000 ppm max. 1,000 ppm max. 1,000 ppm max. Packaging Specifications for Embossed Taping 250 max. (29) Tape drawing direction 220 180 150 Preheating Room temperture 60 to 120 Heating Max.60 Time (s) o13.2 Note: The above heating curve applies if the PCB thickness is 1.6 mm. The peak temperature may vary depending on the reflow bath used. Confirm the conditions beforehand. Do not use an automatic soldering bath for surface-mounted Switches. The soldering gas or flux may enter the Switch and damage the Switch's plunger operation. o3802 Label Reel (Material: PS) B3FS-4002P B3FS-4005P 1.5+0.10 dia. 160.1 40.1 2 A (5.6) 1.75 Manual Soldering 11.5 Soldering temperature: 350 degC max. at the tip of the soldering iron Soldering time: 3 s max. for a 1.6-mm thick, single-side PCB 24 Before soldering the Switch on a PCB, make sure that there is no unnecessary space between the Switch and the PCB. A Washing Tape drawing direction This switch cannot be washed. Doing so will cause the washing agent, together with flux or dust particles on the PCB, to enter the Switch, resulting in malfunction. PCBs If the PCBs are separated after mounting the Switch, particles from the PCBs may enter the Switch. If PCB particles or foreign particles from the surrounding environment, workbench, containers, or stacked PCBs become attached to the Switch, contact failure may result. B3FS-4052P B3FS-4055P 1.5+0.10 dia. 160.1 40.1 2 A (8.5) 1.75 11.5 24 A Tape drawing direction B3FS-4 3 All sales are subject to Omron Electronic Components LLC standard terms and conditions of sale, which can be found at http://www.components.omron.com/components/web/webfiles.nsf/sales_terms.html ALL DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527. OMRON ON-LINE Global - http://www.omron.com USA - http://www.components.omron.com OMRON ELECTRONIC COMPONENTS LLC 847-882-2288 Cat. No. A203-E-02 4 B3FS-4 03/14 Specifications subject to change without notice Printed in USA Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Omron: B3FS-4002P B3FS-4052P B3FS-4005P B3FS-4055P