Omron Supplier Page

B3FS-4 SMD Tactile Switch


12 x 12 mm surface-mount switches from Omron


Omron’s B3FS-4 surface-mount switches with 12 x 12 mm size offer a distinctive snapping action and extended mechanical / electrical durability.

These RoHS compliant switches are available in embossed taping packages for automatic mounting.
 Omron's B3FS-4 SMD Tactile Switch
Specifications
  • Switching capacity: 1 to 50 mA, 5 to 24 VDC (resistive load)
  • Ambient operating temperature: -25 to +70°C at 60% RH max. (with no icing or condensation)
  • Ambient operating humidity: 35 to 85% RH
    (at +5 to +35°C)
  • Contact configuration: SPST-NO
  • Contact resistance: 100 mΩ max. (initial value)
    (rated: 1 mA, 5 VDC)
  • Insulation resistance: 100 MΩ (at 250 VDC)
  • Dielectric strength: 500 VAC 50/60Hz for 1 min.
  • Vibration resistance malfunction: 10 to 55 Hz,
    1.5-mm double amplitude
  • Shock resistance destruction: 1,000 m/s²
    (approx. 100 G) max.
    malfunction: 100 m/s² (approx. 10 G) max.
  • Durability: 3,000,000 operations min.
  • Weight: 1 g (approx.)

Digi-Key P/N Manufacturer P/N Description  
SW1278TR-ND B3FS-4002P SWITCH TACT SPST-NO 0.05A 24V Datasheet
SW1278CT-ND B3FS-4002P SWITCH TACT SPST-NO 0.05A 24V
SW1278DKR-ND B3FS-4002P SWITCH TACT SPST-NO 0.05A 24V
Available in Tape & Reel (-TR-ND), Cut Tape (-CT-ND), and custom Digi-Reel® (-DKR-ND)