Product Details Portlet

B3SL Middle-stroke Tactile Switch (SMT)

Surface-mounting Switches with a Sealed Structure (Rubber Plunger), Crisp Feel, and Middle Stroke. Available on Embossed Tape

  • Sealed construction conforming to IP67
    (IEC 60529) provides high contact reliability in dusty environments. (* Excluding the terminal section.)
  • Crisp click feeling and middle stroke with rubber plunger.
  • Embossed taping package for automatic mounting.
List of Models
6 × 6 mm Models
Type Contact material
Operating force (OF) Plunger color Embossed tape
Model Minimum
packing unit
B3SL Series Silver

(Flat type)
3.4 mm 1.96 N {200 gf} Yellow-green

B3SL-1002P 2,000

(Flat type)
5.1 mm Gray B3SL-1022P 1,400

(Flat type)
3.4 mm 3.5 N {357 gf} Blue B3SL-1005P 2,000

(Flat type)
5.1 mm Blue B3SL-1025P 1,400
Note: Orders must be made in multiples of the minimum order. Switches are not sold individually.
Rating (resistive load) 1 to 50 mA at 3 to 12 VDC
Minimum applicable load
(reference value)
10 μA at 1 VDC (resistive load)
Ambient operating temperature -25°C to +90°C at 60%RH max. (with no icing or condensation)
Ambient operating humidity 35% to 85% (at +5 to +35°C)
Contact configuration 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 Destruction: 10 to 55 Hz, 1.5-mm double amplitude
Shock resistance Destruction: 1,000 m/s2 {approx. 100 G} max.
Durability 100,000 operations min.
Degree of protection IEC IP67
Washing Not possible
(Unit: mm)




Note: Unless otherwise specified, a tolerance of ± 0.4 mm applies to all dimensions. No terminal numbers are indicated on the Switches.

Operating Characteristics
Operation type
B3SL-1002P B3SL-1022P B3SL-1005P B3SL-1025P
Operating force (OF) 1.96±0.49 N. {200±50 gf} 3.5 ± 0.8 N {357 ± 82 gf}
Releasing force (RF) 0.35 N min. {35 gf} 0.5 N min. {51 gf}
Pretravel (PT) 0.3±0.2 mm 0.5±0.2 mm 0.6 ± 0.2 mm 0.8 ± 0.2 mm


Be sure to read the precautions common to all Tactile Switches on pages for correct use.