1
B3W Sealed Tactile Switch
Tactile Switch with Sealed Construction
for Automatic Soldering
• 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.
• Projected plunger types that allow the installation
of B32-series Special Key Tops are available.
■List of Models
Note: Bulk Packaged, 100 switches per bag. Order in multiples of the package quantity.
RoHS Compliant
Type Plunger Height Operating
force (OF)
Plunger color Bags (in units of 100 Switches)
Without ground
terminal
With ground
terminal
6 × 6 mm
B3W-1000
4.3 mm 1.57 N {160 gf} White B3W-1000 B3W-1100
2.26 N {230 gf} Yellow B3W-1002 B3W-1102
5.0 mm 1.57 N {160 gf} White B3W-1020 ---
2.26 N {230 gf} Yellow B3W-1022 ---
7.3 mm 1.57 N {160 gf} White B3W-1050 B3W-1150
2.26 N {230 gf} Yellow B3W-1052 B3W-1152
12 × 12 mm
B3W-4000
4.3 mm 1.96 N {200 gf} White B3W-4000 B3W-4100
3.43 N {350 gf} Yellow B3W-4005 B3W-4105
7.3 mm 1.96 N {200 gf} White B3W-4050 B3W-4150
3.43 N {350 gf} Yellow B3W-4055 B3W-4155
Flat type
Projected type
Flat type
Projected type
2
B3WB3W
■Ratings/Characteristics
■Operating Characteristics
■Model Structure
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 Destruction: 1,000 m/s2 {approx. 100 G} max.
Malfunction: 100 m/s2 {approx. 10 G} max.
Durability 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.
Weight 6 × 6 mm: approx. 0.3 g, 12 × 12 mm: approx. 1 g
Item B3W-1000 series B3W-4000 series
1.57 N 2.26 N 1.96 N 3.43 N
Operating force (OF) 1.57 N {160 gf} max. 2.26 N {230 gf} max. 1.96 N {200 gf} max. 3.43 N {350 gf} max.
Releasing force (RF) 0.2 N {20 gf} min. 0.49 N {50 gf} min. 0.29 N {30 gf} min. 0.49 N {50 gf} min.
Pretravel (PT) 0.25+0.2/–0.1 mm 0.3+0.2/–0.1 mm
Plunger
Cover Spacer
Contact dome
Sealed rubber
Fixed contact
Base
3
B3WB3W
■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.
■6 × 6 mm Models
Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions. No terminal numbers are indicated on the Switches.
(Bottom View)
2
4
1
3
B3W-1000
B3W-1002
B3W-1100
B3W-1102
PCB Mounting (Top View)
(Single-sided PCB, t=1.6)
Terminal Arrangement
/Internal Connections
(Top View)
PCB Mounting (Top View)
(Single-sided PCB, t=1.6)
Terminal Arrangement
/Internal Connections
(Top View)
Flat Plunger Type
(without Ground
Terminal)
B3W-1020
B3W-1022
PCB Mounting (Top View)
(Single-sided PCB, t=1.6)
Terminal Arrangement
/Internal Connections
(Top View)
Flat Plunger Type
(without Ground
Terminal)
Flat Plunger Type
(with Ground
Terminal)
ޓ
ޓ
0.3
ޓ
0.7 0.7
6.5±0.1
4.5±0.1
Four, 1±0.05 dia.
4
2
3
1
3.3 dia.
4.5±0.2
6.6±0.2
6
±0.2
3.5
3.4
(1.8)
7.7
±0.5
6.5
±0.5
5
±0.2
6.6±0.2
6±0.2 3.3 dia.
4.5±0.2
4.3±0.2
3.5
(1.8)
0.7 0.7
3.4
6.5±0.5
7.7±0.5
0.3
6.5±0.1
4.5±0.1
Four, 1±0.05 dia.
4
2
3
1
6.5±0.1
4.5±0.1
4.1±0.1
Five, 1±0.05 dia.
6.6±0.2
6±0.2 3.3 dia.
4.5±0.2
4.3±0.2
3.5
(1.8)
0.7
1.5
0.7
0.25
0.7
3.4
6.5±0.5
7.7±0.5
0.3
4
2
3
1
5
4
B3WB3W
Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions. No terminal numbers are indicated on the Switches.
B3W-1050
B3W-1052
PCB Mounting (Top View)
(Single-sided PCB, t=1.6)
Terminal Arrangement
/Internal Connections
(Top View)
Projected Plunger Type
(without Ground
Terminal)
B3W-1150
B3W-1152
Projected Plunger Type
(with Ground
Terminal)
PCB Mounting (Top View)
(Single-sided PCB, t=1.6)
Terminal Arrangement
/Internal Connections
(Top View)
6.6±0.2
6±0.2 3.3 dia.
4.5±0.2
4.3±0.2
7.3±0.2
3.5
1.8±0.1
(1.8)
2.4 × 2.4±0.1
0.7 0.7
3.4
6.5±0.5
7.7±0.5
0.3
6.5±0.1
4.5±0.1
Four, 1±0.05 dia.
4
2
3
1
6.6±0.2
6±0.2 3.3 dia.
4.5±0.2
(1.8)
0.3
0.7
0.7
1.5
0.25
0.7
3.4
6.5±0.5
7.7±0.5
4.3±0.2
7.3±0.2
3.5
1.8±0.1
2.4 × 2.4±0.1
6.5±0.1
4.5±0.1
4.1±0.1
Five, 1±0.05 dia.
4
2
3
1
5
B3WB3W
■12 × 12 mm Models
Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions.
B3W-4000
B3W-4005
PCB Mounting (Top View)
(Single-sided PCB, t=1.6)
Terminal Arrangement
/Internal Connections
(Top View)
Flat Plunger Type
(without Ground
Terminal)
B3W-4050
B3W-4055 B3W-4150
B3W-4155
Projected Plunger Type
(without Ground
Terminal)
PCB Mounting (Top View)
(Single-sided PCB, t=1.6)
Terminal Arrangement
/Internal Connections
(Top View)
PCB Mounting (Top View)
(Single-sided PCB, t=1.6)
Terminal Arrangement
/Internal Connections
(Top View)
Projected Plunger Type
(with Ground
Terminal)
PCB Mounting (Top View)
(Single-sided PCB, t=1.6)
B3W-4100
B3W-4105
Flat Plunger Type
(with Ground
Terminal)
Terminal Arrangement
/Internal Connections
(Top View)
4.3±0.2
3.5
3.55
(1.8)
1.6 dia.
11
12.5±0.5 9
13.8±0.5
4.3±0.2
3.5
3.55
(1.8)
0.30.250.9
2.6
1.6
12.5±0.5
9
6.9
13.8±0.5
11
1.6 dia.
@3.8±0.1
4.3±0.2
3.5
3.55
(1.8)
0.311
12.5±0.5 9
13.8±0.5
1.8±0.1
7.3±0.2
1.6 dia.
4.3±0.2
1.8±0.1
7.3±0.2
3.5
3.55
(1.8)
0.311
12.5±0.5
9
13.8±0.5
0.25
6.9
0.9
2.6
@3.8±0.1
1.6 dia.
12±0.2
12±0.2 7.1 dia.
5±0.2
Four, 1.2±0.05 dia.
5±0.1
Two, 1.8±0.05 dia.
(for positioning boss)
12.5±0.1
9±0.1
4
2
3
1
12±0.2
12±0.2 7.1 dia.
5±0.2
Five, 1.2±0.05 dia.
5±0.1
6.9±0.1
12.5±0.1
Two, 1.8±0.05 dia.
(for positioning boss)
9±0.1
4
2
3
1
5
12±0.2
12±0.2
5±0.2
Four, 1.2±0.05 dia.
5±0.1
Two, 1.8±0.05 dia.
(for positioning boss)
12.5±0.1
9±0.1
4
2
3
1
12±0.2
12±0.2
5±0.2
Five, 1.2±0.05 dia.
5±0.1
6.9±0.1
12.5±0.1
Two, 1.8±0.05 dia.
(for positioning boss)
9±0.1
4
2
3
1
5
6
B3WB3W
■Key Tops
B32-series Special Key Tops are available for projected plunger models. Refer to the Datasheet of B32 for details.
■Precautions
Be sure to read the safety precautions common to all Tactile Switches for correct use.
• Application examples provided in this document are for reference only. In actual applications, confirm equipment functions and safety before using the product.
• Consult your OMRON representative before using the product under conditions which are not described in the manual or applying the product to nuclear control systems, railroad
systems, aviation systems, vehicles, combustion systems, medical equipment, amusement machines, safety equipment, and other systems or equipment that may have a serious
influence on lives and property if used improperly. Make sure that the ratings and performance characteristics of the product provide a margin of safety for the system or
equipment, and be sure to provide the system or equipment with double safety mechanisms.
OMRON Corporation
ELECTRONIC AND MECHANICAL COMPONENTS COMPANY Contact: www.omron.com/ecb Cat. No. A075-E1-06
0812(0207)(O)
Note: Do not use this document to operate the Unit.
