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SMD Tactile Switch B3FS-4 1
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.
■ Ordering Information
● List of Models
12 × 12 mm Models
Note: Order in multiples of the minimum order unit. Switches are not sold individually.
■ Specifications
● Ratings/Characteristics
● Operating Characteristics
RoHS Compliant
Type Contact material Plunger type Height Operating force (OF) Plunger color
Embossed taping
Model Minimum packing unit
B3FS-4000 Series Silver plated
4.3 mm
1.47 N
Black
B3FS-4002P
1,000
2.55 N B3FS-4005P
7.3 mm
1.47 N B3FS-4052P
500
2.55 N B3FS-4055P
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 to +70 degC at 60%RH max.
(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 mΩ max.
Insulation resistance 100 MΩ (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
Shock resistance
Destruction: 1,000 m/s
2
{approx. 100 G} max.
Malfunction: 100 m/s
2
{approx. 10 G} max.
Durability
3,000,000 operations min. (OF: 1.47 N {150 gf})
1,000,000 operations min. (OF: 2.55 N {260 gf})
Weight Approx. 1 g
Degree of protection IEC IP00
Washing Not possible
Type B3FS-4000 Series
Operating force (OF) 1.47 N 2.55 N
Item Model B3FS-40@2P B3FS-40@5P
Operating force (OF) 1.47±0.49 N {150±50 gf} 2.55±0.69 N {260±70 gf}
Releasing force (RF) 0.15 N {15 gf} min. 0.29 N {30 gf} min.
Pretravel (PT) 0.25±0.15 mm 0.25±0.15 mm
