B3SN Tactile Switch, SMD Datasheet by Omron Electronics Inc-EMC Div

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1
B3SN
Sealed Tactile Switch (SMT)
Sealed Surface-mounting Switches
Sealed Structure for High Reliability.
Available on Embossed Tape
Sealed construction conforming to IP67 (IEC-
60529) provides high reliability in locations
exposed to dust or water. (* Excluding the termi-
nal section.)
• Available with ground terminals for protection
against static electricity.
Use of a stainless-steel spring provides a crisp
clicking action.
Gold plated version enables stable contact and
insulation over long periods of time.
Available in embossed taping packages for auto-
matic mounting.
List of Models
6 × 6 mm Models
Note: Switches in bags must be ordered in units of 100 pieces, and Switches on embossed taping must be ordered in units of 3,000 piec-
es. Individual Switches are not sold individually.
Ratings/Characteristics
Operating Characteristics
RoHS Compliant
Without ground terminal With ground terminal
Bags Embossed taping Bags Embossed taping
Operation type
Contact
material
Height
Operating
force (OF)
Plunger
color
Model Minimum
packing
unit
Model Minimum
packing
unit
Model Minimum
packing
unit
Model Minimum
packing
unit
B3SN-3000
Series
Silver
plated
3.1 mm 1.57 N
{160 gf}
Ivory B3SN-
3012
100 pcs B3SN-
3012P
3,000 pcs B3SN-
3112
100 pcs B3SN-
3112P
3,000 pcs
B3SN-G Series
Gold-plated
Gold
plated
1.76 N
{180 gf}
Black --- --- B3SN-
3012P-G --- --- --- ---
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°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 (initial value) 100 mΩ max.
Insulation resistance 100 MΩ min. (at 250 VDC with insulation tester)
Dielectric strength 250 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. 100G} max.
Durabulity 100,000 operations min.
Weight Approx. 0.2 g
Degree of protection IEC IP67
Washing Possible
Item Type B3SN-3000 Series B3SN-G Series
Operating force (OF) 1.57±0.49 N {160±50 gf} max. 1.76±0.59 N {180±60 gf} max.
Releasing force (RF) 0.29 N {30 gf} min.
Pretravel (PT) 0.25±0.15 mm
BSSN BasN omRon
2
B3SNB3SN
Model Structure
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.
Note: Unless otherwise specified, a tolerance of ±0.3 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 on pages for correct use.
Film
Pushbutton
Cover
Terminals
Plunger
Contact dome
Fixed contact
Base
(Bottom View)
2
4
1
3
Without Ground Terminal
B3SN-3012
B3SN-3012P
B3SN-3012-G
With Ground Terminal
B3SN-3112
B3SN-3112P
PCB Pad
(Top View)
Terminal Arrangement
/Internal Connections
(Top View)
PCB Pad
(Top View)
Terminal Arrangement
/Internal Connections
(Top View)
4±0.2
3 dia.
2
6
7±0.5
4
9.5
(4.6) 6.5
0.7
0.11.2
6
3.1+0.3
02.6 5.4
4
2
3
1
4±0.2
3.4±0.2
3 dia.
2
7±0.5
4
9.5
(4.6) 6.5
0.70.7
0.11.2
6
3.1+0.3
0
2.61.4 5.4
4
2
3
5
1
6
BaSN omRon BSSN
3
B3SNB3SN
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.
Cat. No. C096-E1-06
1014(0207)(O)
Note: Do not use this document to operate the Unit.
OMRON Corporation
Electronic and Mechanical Components Company Contact: www.omron.com/ecb

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