B3S Sealed Tactile Switch (SMT)
Surface-mounting Tactile Switch for
High Contact Reliability
• Sealed construction conforming to IP67 (IEC-
60529) provides high contact reliability in loca
tions exposed to dust or water. (* Excluding the
terminal section.)
• Surface-mounting terminals for high-density
mounting.
• Ground terminal available to protect against static
electricity.
• Available in embossed taping packages for automatic mounting.
RoHS Compliant
■ List of Models
6 × 6 mm B3S-1000
Height Operating force (OF) Plunger color
4.3 mm 1.57 N {160 gf} Ivory B3S-1000 B3S-1000P B3S-1100 B3S-1100P
2.26 N {230 gf} Yellow B3S-1002 B3S-1002P B3S-1102 B3S-1102P
-
Without ground terminal With ground terminal
Bags (in units of
100 Switches)
Embossed taping
(in units of 1,000
Switches)
Bags (in units of
100 Switches)
Embossed taping
(in units of 1,000
Switches)
Note: Switches in bags must be ordered in units of 100 Switches, and Switches on embossed taping must be ordered in units of 1,000
Switches.
■ Ratings/Characteristics
Ratings 1 to 50 mA, 5 to 24 VDC (resistive load)
Ambient operating temperature -25°C to +70°C at 60%RH max. (with no icing or condensation)
Ambient operating humidity 35% to 85% (at +5 to +35°C)
Contact form SPST-NO
Contact resistance 100 mΩ max. (initial value) (rated: 1 mA, 5 VDC)
Insulation resistance 100 MΩ min. (at 250 VDC)
Dielectric strength 500 VAC, 50/60 Hz for 1 min
Bounce time 5 ms max.
Vibration resistance Malfunction: 10 to 55 Hz, 1.5-mm double amplitude
Shock resistance
Durability Standard force models (1.57 N {160 gf}): 500,000 operations min.
Weight Approx. 0.3 g
■ Operating Characteristics
Item B3S-1@00 B3S-1@02
Operating force (OF) 1.57 N {160 gf} max. 2.26 N {230 gf} max.
Releasing force (RF) 0.2 N {20 gf} min. 0.49 N {50 gf} min.
Pretravel (PT)
Destruction: 1,000 m/s2 {approx. 100G} max.
Malfunction: 100 m/s2 {approx. 10G} max.
High-force models (2.26 N {230 gf}): 300,000 operations min.
+0.2
0.25
/
mm
–0.1
1
■ Model Structure
Cover
Plunger
Contact dome
Fixed contact
Base
Spacer
Sealing rubber
(Bottom View)
2
4
1
3
Without Ground Terminal
B3S-1000
B3S-1002
With Ground Terminal
B3S-1100
B3S-1102
PCB Pad
(Top View)
Terminal Arrangement
/Internal Connections
(Top View)
PCB Pad
(Top View)
Terminal Arrangement
/Internal Connections
(Top View)
9
4.5
3.3
dia.
0.7
6
6.4
9.5
6.6
1.3
4.5
4
2
3
1
4.3
0.1
3.4
0.7 0.7
1.5
9
4.5
3.3
dia.
0.7
6
6.4
9.5
6.6
1.3
1.3
3.25
4.95
4.5
4
2
3
1
4.3
0.1
3.4
0.7
0.7
0.7
5
■ Dimensions (Unit: mm)
Note: The numbers used for terminals in the following graphics are indicated in the “Bottom View” diagram below. In this
diagram, the Switch is rotated so that the terminals are on the right and left-hand sides, and the OMRON logo appears
the right way up.
B3SB3S
Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions. No terminal numbers are indicated on the Switches.
■ Precautions
Be sure to read the safety precautions common to all Tactile Switches for correct use.
2
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