New Product News
SMD Tactile Switch
B3FS-4
12 × 12-mm Surface-mounting
Switches for High-density
Mounting
• Surface-mounting device of B3F-4000 series.
• Distinctive snapping action and extended mechanical/electrical
durability.
• Available in embossed taping packages for automatic mounting.
• B32-series Key Tops mount to models with projected plungers.
RoHS Compliant
■ Ordering Information
● List of Models
12 × 12 mm Models
Type
Contact material
Plunger type
Height
Operating force (OF)
Plunger color
Embossed taping
Model
1.47 N
B3FS-4002P
2.55 N
B3FS-4005P
Minimum packing unit
4.3 mm
B3FS-4000 Series
1,000
Silver plated
Black
1.47 N
B3FS-4052P
2.55 N
B3FS-4055P
7.3 mm
500
Note: Order in multiples of the minimum order unit. Switches are not sold individually.
■ Specifications
● Ratings/Characteristics
Rating (resistive load)
1 to 50 mA, 3 to 24 VDC
Minimum applicable load (reference value)
10 µA at 1 VDC (resistive load)
Ambient operating temperature
-25 to +70 degC at 60%RH max.
(with no icing or condensation)
Ambient operating humidity
35 to 85%RH (at +5 to +35 degC)
Contact configuration
SPST-NO
Contact resistance (initial value)
100 mΩ max.
Insulation resistance
100 MΩ (at 250 VDC with insulation tester)
Dielectric strength
500 VAC 50/60 Hz for 1 min
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
3,000,000 operations min. (OF: 1.47 N {150 gf})
1,000,000 operations min. (OF: 2.55 N {260 gf})
Weight
Approx. 1 g
Degree of protection
IEC IP00
Washing
Not possible
● Operating Characteristics
Type
Operating force (OF)
B3FS-4000 Series
1.47 N
2.55 N
B3FS-40@2P
B3FS-40@5P
Operating force (OF)
1.47±0.49 N {150±50 gf}
2.55±0.69 N {260±70 gf}
Releasing force (RF)
0.15 N {15 gf} min.
0.29 N {30 gf} min.
0.25±0.15 mm
0.25±0.15 mm
Item
Pretravel (PT)
Model
SMD Tactile Switch
B3FS-4
1
■ Dimensions
Note: 1. All units are in millimeters unless otherwise indicated. Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions.
Note: 2. The numbers used for terminals in the following graphics are indicated in the “Bottom View” diagram in the right. 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.
● Flat type
B3FS-4002P
B3FS-4005P
7.1 dia.
PCB Pad (Example)
(TOP VIEW)
(PCB t= 1.6)
12±0.2
2
1
4
3
(BOTTOM VIEW)
Terminal Arrangement/
Internal Connection
(Top View)
1
12±0.2 5±0.2
1
4
3
2
1
2.6±0.1 7.4±0.1
12±0.1
16.6±0.1
0.4 max.
4.3±0.2
15
0.1
● Projected type
B3FS-4052P
B3FS-4055P
7.1 dia.
Terminal Arrangement/
Internal Connection
(Top View)
PCB Pad (Example)
(TOP VIEW)
(PCB t= 1.6)
12±0.2
1
12±0.2 5±0.2
1
3.85
3.85
12±0.1
16.6±0.1
0.4 max.
7.3
4.3
0.1
15
■ Key Tops
B32-series Key Tops are available for projected plungers. Refer to the Datasheet of B32 for details.
■ Precautions
Be sure to read the safety precautions common to all Tactile Switches for correct use.
2
SMD Tactile Switch
B3FS-4
4
3
2
1
2.6±0.1 7.4±0.1
• 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.
Note: Do not use this document to operate the Unit.
OMRON Corporation
Electronic and Mechanical Components Company
Contact: www.omron.com/ecb
Cat. No. A203-E1-03
1014(0911)(O)