OMRON B3SL Series Tactile Switch, SPST, SMD, 357gf, 12V DC, 50mA

The OMRON B3SL Series Tactile Switch is a high-precision, surface-mount component engineered for reliable performance in demanding applications. This single-pole, single-throw (SPST) switch features a middle-stroke mechanism with a crisp, positive tactile feel, providing clear user feedback during operation. The distinctive blue plunger aids in visual identification on assembled boards. Its sealed construction conforms to the IP67 (IEC 60529) standard, offering exceptional protection against dust ingress and temporary immersion in water. This makes it an ideal choice for electronics that must function reliably in harsh or contaminated environments where contact failure is not an option.

Constructed for surface-mount technology (SMD), this flat-type switch facilitates automated assembly processes, enhancing production efficiency. The switch boasts excellent electrical characteristics, including a low maximum contact resistance of 100mΩ and a high minimum insulation resistance of 100MΩ, ensuring stable signal transmission and isolation. It is rated for a dielectric strength of 250V AC at 50/60Hz for one minute, underscoring its robustness and safety. With an actuating force of 357gf, it provides a deliberate actuation that helps prevent accidental presses.

Key Specifications

• Series: B3SL
• Contact Configuration: SPST (Single-Pole, Single-Throw), Normally Open (NO)
• Mounting Type: Surface Mount (SMD)
• Actuator Style: Round Button, Top Actuated
• Actuating Force: 357gf
• Electrical Rating: 50mA at 12V DC
• IP Rating: IP67 Sealed
• Switch Dimensions: 6.5mm (L) x 6.2mm (W)
• Height: 3.4mm
• Special Feature: Sealed structure for high contact reliability in dusty conditions

This OMRON tactile switch is a trusted component for designers and engineers seeking a durable, sealed interface solution with consistent actu­a