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B3SL Series Middle Stroke Tactile Switch

  • Overview
  • Features
  • Specifications
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Middle Stroke Tactile SwitchesB3SL series middle stroke tactile switches are capable of operating in a temperature range of -25°C to +90°C. Their sealed construction conforms to an IP64 (IEC 60529) rating, which provides high contact reliability in dusty environments.

The B3SL is a 6 mm x 6 mm middle stroke switch whose rubber plunger provides a crisp click feeling when actuated and is suitable for appliance, industrial devices, and automotive control panel applications. Their switch configuration is SPST-NO with a switching capacity of 1 to 50 mA @ 5 to 12 VDC and a contact resistance of 100 mΩ maximum.

The B3SL will deliver an electrical life of 100,000 operations minimum with an operating force (OF) of 1.96 ±0.49 N (200 ±50 gf) and a release force (RF) of 0.35 N minimum (35 gf). The B3SL-1002P (flat plunger type) has a height of 3.4 mm with a pretravel (PT) of 0.3 ±0.2 mm while the B3SL-1022P (raised plunger type) has a height of 5.1 mm and a PT of 0.5 ±0.2 mm.


  • 90°C Maximum operating Temperature
  • Sealed construction conforming to IP64 (IEC 60529) provides high contact reliability in dusty environments
  • Crisp click feeling and middle stroke with rubber plunger
  • Two heights available: 3.4 mm and 5.1 mm
RoHS Compliant
Middle Stroke Tactile Switches


Switching Capacity 1 to 50 mA at 5 to 12 VDC (resistive load)
Ambient operating temperature −25°C to 90°C at 60% max. (with no icing or condensation)
Ambient operating humidity 35% to 85% (at 5 to 35°C)
Contact configuration SPST-NO
Contact resistance 100 mΩ max. (initial value) (for 1 mA at 5 VDC)
Insulation resistance 100 MΩ min. (at 250 VDC)
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.
Operating force 30 N max.

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Digi-Key P/N Omron P/N Plunger Height Operating Force Type
SW1064CT-ND B3SL-1002P B3SL-1002P
(Flat Type)
3.4 mm 1.96 N {200 gf} 6 mm x 6 mm B3SL Series
SW1065CT-ND B3SL-1022P B3SL-1022P
(Raised Type)
5.1 mm 1.96 N {200 gf} 6 mm x 6 mm B3SL Series