Sealed Tactile Switch
Through-hole-mounting Switches
That Are Mounting-compatible
with B3F Series.
Sealed Structure for High Reliability
• Sealed construction conforming to IP67 (IEC-
60529) provides high reliability in locations
exposed to dust or water. (* Excluding the termi-
nal section.)
• Available in two sizes: 6
×
6 mm and 12
×
12 mm
sizes.
• Ground terminal available to protect against static
electricity.
• B32-series Key Tops mount to models with pro-
jected plungers.
RoHS Compliant
■
B3W
List of Models
Type
Contact
material
Plunger
Height
Operating
force (OF)
Plunger
color
Bags
Without
ground
terminal
B3W-1000
B3W-1002
B3W-1020
B3W-1022
B3W-1050
B3W-1052
100 pcs
Minimum
packing
unit
With ground
terminal
B3W-1100
B3W-1102
---
---
B3W-1150
B3W-1152
100 pcs
Minimum
packing
unit
6
×
6 mm Models
B3W-1000
Series
Silver
plated
Flat type
4.3 mm
1.57 N {160 gf}
max.
2.26 N {230 gf}
max.
White
Yellow
White
Yellow
White
Yellow
5.0 mm
1.57 N {160 gf}
max.
2.26 N {230 gf}
max.
Projected type
7.3 mm
1.57 N {160 gf}
max.
2.26 N {230 gf}
max.
Note:
Bulk Packaged, 100 switches per bag. Order in multiples of the package quantity.
12
×
12 mm Models
Type
Contact
material
Plunger
Height
Operating
force (OF)
Plunger
color
Bags
Without
ground
terminal
B3W-4000
B3W-4005
B3W-4050
B3W-4055
100 pcs
Minimum
packing
unit
With ground
terminal
B3W-4100
B3W-4105
B3W-4150
B3W-4155
100 pcs
Minimum
packing
unit
B3W-4000
Series
Silver
plated
Flat type
4.3 mm
1.96 N {200 gf}
max.
3.43 N {350 gf}
max.
White
Yellow
White
Yellow
Projected type
7.3 mm
1.96 N {200 gf}
max.
3.43 N {350 gf}
max.
Note:
Bulk Packaged, 100 switches per bag. Order in multiples of the package quantity.
1
B3W
■
B3W
Ratings/Characteristics
1 to 50 mA, 3 to 24 VDC
-25°C to +70°C at 60%RH max. (with no icing or condensation)
35% to 85% (at +5 to +35°C)
SPST-NO
100 mΩ max.
100 MΩ min. (at 250 VDC with insulation tester)
500 VAC, 50/60 Hz for 1 min
5 ms max.
Malfunction: 10 to 55 Hz, 1.5 mm double amplitude
Destruction: 1,000 m/s
2
{approx. 100 G} max.
Malfunction: 100 m/s
2
{approx. 10 G} max.
B3W-1000:
1.57 N (standard force):1,000,000 operations min.
2.26 N (high-force):300,000 operations min.
B3W-4000:
1.96 N (standard force):3,000,000 operations min.
3.43 N (high-force):1,000,000 operations min.
Rating (resistive load)
Ambient operating temperature
Ambient operating humidity
Contact form
Contact resistance (initial value)
Insulation resistance
Dielectric strength
Bounce time
Vibration resistance
Shock resistance
Durability
Minimum applicable load (reference value)
10
μA
at 1 VDC (resistive load)
Weight
Degree of protection
Washing
■
6
×
6 mm: approx. 0.3 g, 12
×
12 mm: approx. 1 g
IEC IP67
Possible
Operating Characteristics
Type
Operating force (OF)
1.57 N
B3W-1@@0
1.57 N {160 gf} max.
0.2 N {20 gf} min.
0.25
+0.2
/
–0.1
mm
B3W-1000 series
2.26 N
B3W-1@@2
2.26 N {230 gf} max.
0.49 N {50 gf} min.
6
×
6 mm Models
Item
Operating force (OF)
Releasing force (RF)
Pretravel (PT)
Model
12
×
12 mm Models
Type
Operating force (OF)
Item
Operating force (OF)
Releasing force (RF)
Pretravel (PT)
■
Model
1.96 N
B3W-4@@0
1.96 N {200 gf} max.
0.29 N {30 gf} min.
0.3
+0.2
/
–0.1
mm
B3W-4000 series
3.43 N
B3W-4@@5
3.43 N {350 gf} max.
0.49 N {50 gf} min.
Model Structure
Plunger
Cover
Spacer
Sealed rubber
Contact dome
Base
Fixed contact
2
B3W
■
B3W
(Unit: mm)
2
1
3
4
(Bottom View)
Dimensions
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.
■
6
×
6 mm Models
6
±0.2
3.3 dia.
Flat Plunger Type
(without Ground
Terminal)
B3W-1000
B3W-1002
6.6
±0.2
Flat Plunger Type
(with Ground
Terminal)
B3W-1100
B3W-1102
6.6
±0.2
6
±0.2
3.3 dia.
4.5
±0.2
4.5
±0.2
1.5
4.3
±0.2
3.4
4.3
±0.2
3.4
3.5
(1.8)
0.3
6.5
±0.5
7.7
±0.5
0.7
0.7
3.5
0.7
6.5
±0.5
7.7
±0.5
0.25
(1.8)
0.3
0.7
0.7
PCB Processing Dimensions
(Reference Only) (Top View)
(PCB thickness, t=1.6)
Terminal Arrangement
/Internal Connections
(Top View)
4
3
PCB Processing Dimensions
(Reference Only) (Top View)
(PCB thickness, t=1.6)
Terminal Arrangement
/Internal Connections
(Top View)
4
3
4.5
±0.1
4.5
±0.1
2
6.5
±0.1
Four, 1
±0.05
dia.
6.5
±0.1
1
4.1
±0.1
Five, 1
±0.05
dia.
2
5
1
Flat Plunger Type
(without Ground
Terminal)
B3W-1020
B3W-1022
6.6
±0.2
6
±0.2
3.3 dia.
4.5
±0.2
5
±0.2
3.4
3.5
0.3
6.5
±0.5
7.7
±0.5
(1.8)
0.7
0.7
PCB Processing Dimensions
(Reference Only) (Top View)
(PCB thickness, t=1.6)
Terminal Arrangement
/Internal Connections
(Top View)
4
3
4.5
±0.1
2
6.5
±0.1
Four, 1
±0.05
dia.
1
Note:
Unless otherwise specified, a tolerance of
±0.4
mm applies to all dimensions. No terminal numbers are indicated on the Switches.
3
B3W
Projected Plunger Type
(with Ground
Terminal)
B3W-1150
B3W-1152
6.6
±0.2
B3W
Projected Plunger Type
(without Ground
Terminal)
B3W-1050
B3W-1052
6.6
±0.2
6
±0.2
3.3 dia.
6
±0.2
3.3 dia.
4.5
±0.2
4.5
±0.2
1.8
±0.1
2.4
×
2.4
±0.1
1.8
±0.1
2.4
×
2.4
±0.1
7.3
±0.2
4.3
±0.2
3.4
7.3
±0.2
4.3
±0.2
3.4
3.5
(1.8)
0.3
6.5
±0.5
7.7
±0.5
0.7
0.7
3.5
0.7
1.5
6.5
±0.5
7.7
±0.5
(1.8)
0.3
0.7
0.25
0.7
PCB Processing Dimensions
(Reference Only) (Top View)
(PCB thickness, t=1.6)
Terminal Arrangement
/Internal Connections
(Top View)
4
3
PCB Processing Dimensions
(Reference Only) (Top View)
(PCB thickness, t=1.6)
Terminal Arrangement
/Internal Connections
(Top View)
4
3
4.5
±0.1
2
6.5
±0.1
Four, 1
±0.05
dia.
1
4.1
±0.1
4.5
±0.1
2
Five, 1
±0.05
dia.
6.5
±0.1
1
Note:
Unless otherwise specified, a tolerance of
±0.4
mm applies to all dimensions. No terminal numbers are indicated on the Switches.
4
B3W
■
B3W
12
×
12 mm Models
12
±0.2
7.1 dia.
Flat Plunger Type
(without Ground
Terminal)
B3W-4000
B3W-4005
12
±0.2
Flat Plunger Type
(with Ground
Terminal)
B3W-4100
B3W-4105
12
±0.2
12
±0.2
7.1 dia.
5
±0.2
5
±0.2
1.6
4.3
±0.2
3.5
1.6 dia.
12.5
±0.5
13.8
±0.5
3.55
4.3
±0.2
3.5
3.55
(1.8)
1
9
1
0.9
2.6
12.5
±0.5
13.8
±0.5
0.3
(1.8)
0.25
1.6
1
6.9
9
1
PCB Processing Dimensions
(Reference Only) (Top View)
(PCB thickness, t=1.6)
Two, 1.8
±0.05
dia.
(for positioning
boss)
Terminal Arrangement
/Internal Connections
(Top View)
4
3
PCB Processing Dimensions
(Reference Only) (Top View)
(PCB thickness, t=1.6)
Two, 1.8
±0.05
dia.
(for positioning
boss)
Terminal Arrangement
/Internal Connections
(Top View)
4
3
5
±0.1
5
±0.1
9
±0.1
2
1
6.9
±0.1
9
±0.1
2
5
1
Five, 1.2
±0.05
dia.
12.5
±0.1
Four, 1.2
±0.05
dia.
12.5
±0.1
Projected Plunger Type
(without Ground
12
Terminal)
B3W-4050
B3W-4055
12
±0.2
±0.2
Projected Plunger Type
12
(with Ground
Terminal)
5
±0.2
±0.2
B3W-4150
B3W-4155
12
±0.2
5
±0.2
1.8
±0.1
@3.8
±0.1
1.8
±0.1
@3.8
±0.1
7.3
±0.2
4.3
±0.2
3.5
1.6 dia. 0.3
12.5
±0.5
13.8
±0.5
3.55
7.3
±0.2
4.3
±0.2
3.5
3.55
(1.8)
1
9
1
0.3
0.9
2.6
12.5
±0.5
13.8
±0.5
(1.8)
0.25
1.6
1
6.9
9
1
PCB Processing Dimensions
(Reference Only) (Top View)
(PCB thickness, t=1.6)
Two, 1.8
±0.05
dia.
(for positioning
boss)
Terminal Arrangement
/Internal Connections
(Top View)
4
3
PCB Processing Dimensions
(Reference Only) (Top View)
(PCB thickness, t=1.6)
Two, 1.8
±0.05
dia.
(for positioning
boss)
Terminal Arrangement
/Internal Connections
(Top View)
4
3
5
±0.1
9
±0.1
2
1
6.9
±0.1
5
±0.1
9
±0.1
2
5
1
12.5
±0.1
Four, 1.2
±0.05
dia.
12.5
±0.1
Five, 1.2
±0.05
dia.
Note:
Unless otherwise specified, a tolerance of
±0.4
mm applies to all dimensions.
5
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