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.) (cid:129) Available with ground terminals for protection against static electricity. (cid:129) Use of a stainless-steel spring provides a crisp clicking action. (cid:129) Gold plated version enables stable contact and insulation over long periods of time. (cid:129) 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 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-G Series Gold 1.76 N Black B3SN- Gold-plated plated {180 gf} --- --- 3012P-G --- --- --- --- 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 μA at 1 VDC (resistive load) Ambient operating temperature -25°C to +70°C at 60%RH max. (with no icing or condensation) Ambient operating humidity 35% to 85% (at +5 to +35°C) Contact form SPST-NO Contact resistance (initial value) 100 mΩ max. Insulation resistance 100 MΩ 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 Shock resistance Destruction: 1,000 m/s2 {approx. 100G} max. Durabulity 100,000 operations min. Weight Approx. 0.2 g Degree of protection IEC IP67 Washing Possible ■ Operating Characteristics Item Type B3SN-3000 Series B3SN-G Series Operating force (OF) 1.57±0.49 N {160±50 gf} max. 1.76±0.59 N {180±60 gf} max. Releasing force (RF) 0.29 N {30 gf} min. Pretravel (PT) 0.25±0.15 mm 1

B3SN B3SN ■ Model Structure Film Pushbutton Plunger Contact dome Cover Fixed contact Terminals Base ■ Dimensions 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 the right way up. (Bottom View) Without Ground Terminal B3SN-3012 B3SN-3012P 7±0.5 B3SN-3012-G 6 PCB Pad Terminal Arrangement (Top View) /Internal Connections 4±0.2 6 (Top View) 9.5 3 dia. 4 4 3 2 3.1+0.3 0 2.6 5.4 2 1 0.7 1.2 0.1 (4.6) 6.5 With Ground Terminal B3SN-3112 B3SN-3112P 7±0.5 6 PCB Pad Terminal Arrangement (Top View) /Internal Connections (Top View) 4±0.2 6 9.5 4 4 3 3 dia. 5 3.4±0.2 1.4 2.6 5.4 2 1 2 3.1+0.3 0 0.7 0.7 1.2 0.1 (4.6) 6.5 Note: Unless otherwise specified, a tolerance of ±0.3 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 on pages for correct use. 2

B3SN B3SN (cid:129) Application examples provided in this document are for reference only. In actual applications, confirm equipment functions and safety before using the product. (cid:129) Consult your OMRON representative before using the product under conditions which are not described in the manual or applying the product to nuclear control systems, railroad systems, aviation systems, vehicles, combustion systems, medical equipment, amusement machines, safety equipment, and other systems or equipment that may have a serious influence on lives and property if used improperly. Make sure that the ratings and performance characteristics of the product provide a margin of safety for the system or equipment, and be sure to provide the system or equipment with double safety mechanisms. Note: Do not use this document to operate the Unit. OMRON Corporation Electronic and Mechanical Components Company Contact: www.omron.com/ecb Cat. No. C096-E1-06 1014(0207)(O) 3

Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: O mron: B3SN-3012 B3SN-3012P B3SN-3112 B3SN-3112P