Omron B3U-1000P

Reference Designs (69)

Attributes

Part Number
Manufacturer
Description
Datasheet
Prefix
SW
Category
Switches
Category
Tactile / Jog
Category
Industrial Control
Imported From Octopart
yes
Lead Free
yes
Octopart Part Number
24bceda62397fb7b
Package
RoHS
yes
Actuator Type
Standard
Contact Resistance
100 mΩ
Contacts Type
SPST-NO
Insulation Resistance
100 MΩ
Mounting Type
surface mount
Orientation
Vertical

Pins

1
1
2
2

Pricing

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Supplier Part Number # In Stock 1510253250  
Arrow (USD) B3U-1000P**MULT1 3164 1.04570.93540.8913 Buy Now
Digi-Key (USD) SW1020DKR-ND 72026 1.251.2011.13320.997 Buy Now
Digi-Key (USD) SW1020CT-ND 72026 1.251.2011.13320.997 Buy Now
Digi-Key (USD) SW1020TR-ND 66500 Buy Now
TTI (USD) B3U-1000P 87500 Buy Now
Newark (USD) 78M0188 17 1.070.9550.880.725 Buy Now
Verical (USD) B3U1000P 6693 0.7925 Buy Now
Mouser (USD) 653-B3U-1000P 31401 1.030.9220.824 Buy Now
Avnet (USD) B3U1000P 3500 Buy Now
Onlinecomponents.com (USD) B3U1000P 3397 0.820.75 Buy Now
Heilind Electronics (USD) OMRB3U-1000P.P 2065 0.8277 Buy Now
Chip One Stop (JPY) OMRO-0032954 6683 129.0103.0 Buy Now
Master Electronics (USD) B3U1000P 2928 0.820.75 Buy Now
Chip One Stop (JPY) OMRO-0098427 3164 149.0135.0108.0 Buy Now
Sager Electronics (USD) B3U-1000P 1580 0.6390.6140.585 Buy Now
Components Center (USD) B3U-1000P 789 0.7042 Buy Now
Relay Specialties (USD) B3U-1000P 0 0.80.79 Buy Now
Allied Electronics (USD) 70175988 0 Buy Now
Interstate Connecting Components B3U-1000P 8500 Buy Now
Dalis Electronics B3U-1000P 603 Buy Now
Heilind Asia OMRB3U-1000P 0 Buy Now
Power and Signal Group B3U1000P 0 Buy Now
Farnell (GBP) 1333652RL 22835 0.530.5 Buy Now
element14 APAC (SGD) 1333652 32790 1.671.491.33 Buy Now
RS Components (GBP) 419867 6890 0.546 Buy Now
Rutronik (EUR) SWITCH7107 0 Buy Now
Distrelec (EUR) 13559010 Yes 0.98 Buy Now

Contributors

Datasheet Preview

Ultra-small Tactile Switch B3U 243
Ultra-small Tactile Switch
B3U
Ultra-small-sized Tactile Switch with High
Contact Reliability:
1.2 x 3 x 2.5 mm (H x W x D)
Industry’s smallest switch* allows high-density mounting on
PCBs for mobile equipment.
*As of October 2006 (according to OMRON survey).
• Dust-proof construction provides high reliability in dusty
environments.
• Surface mounted: Ideal for high-density mounting.
• Models with ground terminals are available for protection
against static electricity.
• RoHS Compliant
Ordering Information
Note: 1. Order in multiples of the quantities given for each package
2. Replace “P” in the part number with “PM” to order versions with 1,000 pieces per reel. Example: B3U-3100PM-B
Specifications
Characteristics
Note: Data shown are of initial value
Operating Characteristics
Type Quantity per reel Locating pin
Model
Without ground terminal With ground terminal
Top-actuated 3,500 pieces Without boss B3U-1000P B3U-1100P
With boss B3U-1000P-B B3U-1100P-B
Side-actuated 4,000 pieces Without boss B3U-3000P B3U-3100P
With boss B3U-3000P-B B3U-3100P-B
Item
Top-actuated
(B3U-1000 Series)
Side-actuated
(B3U-3000 Series)
Contact form SPST-NO
Switching capacity 1 to 50 mA, 5 to 12 VDC (resistive load)
Contact resistance 100 mΩ max. (rated: 1 mA, 5 VDC)
Insulation resistance 100 MΩ min. (at 100 VDC)
Dielectric strength 250 VAC, 50/60 Hz for 1 min
Bounce time 5 ms max.
Vibration resistance 10 to 55 Hz, 1.5 mm double amplitude
Shock resistance
1,000 m/s
2
max.
Life expectancy 200,000 operations min. 100,000 operations min.
Ambient operating temperature 25 to 70°C, (at 60% RH max.) with no icing or condensation
Ambient operating humidity 35% to 85% (at 5 to 35°C)
Weight Approx. 0.022 g
Characteristics
Top-actuated
(B3U-1000 Series)
Side-actuated
(B3U-3000 Series)
Operating force (OF) 153 ± 50 gf 162 ± 50 gf
Releasing force (RF) min. 20.3 gf
Pretravel (PT)
0.15 mm 0.2 mm
+0.2
–0.1
+0.2
–0.1
244 Ultra-small Tactile Switch B3U
Dimensions
Note: All dimensions are in millimeters unless otherwise indicated. Unless otherwise specified, a tolerance of ±0.2 mm applies to all dimensions.
Top-actuated Models
Without Ground Terminal, without Boss With Ground Terminal, without Boss
Without Ground Terminal, with Boss With Ground Terminal, with Boss
3
4
2.5 1.4
2.6±
0.1
1.7±
0.1
4.2±
0.1
1.5 dia.
1.6
+0.15
0.10
1.2
+0.15
0.10
PCB Mounting
(Top View)
B3U-1000P
1.9
0.5
3
4
2.5 1.4
0.8±
0.1
1.1±
0.1
1.1±
0.1
2.6±
0.1
1.7±
0.1
4.2±
0.1
1.5 dia.
1.6
+0.15
0.10
1.2
+0.15
0.10
B3U-1100P
PCB Mounting
(Top View)
0.65±
0.05
dia.
0.5
3
4
2.5 1.4
2.6±
0.1
1.7±
0.1
4.2±
0.1
1.5 dia.
Hole: 0.75
+0.1
0
dia.
1.6
+0.15
0.10
1.2
+0.15
0.10
B3U-1000P-B
PCB Mounting
(Top View)
1.6
+0.15
0.10
1.2
+0.15
0.10
0.65±
0.05
dia.
0.5
1.9
0.5
3
4
2.5 1.4
0.8±
0.1
1.1±
0.1
1.1±
0.1
2.6±
0.1
1.7±
0.1
4.2±
0.1
1.5 dia.
Hole: 0.75
+0.1
0
dia.
B3U-1100P-B
PCB Mounting
(Top View)
Ultra-small Tactile Switch B3U 245
Side-actuated Models
Note: All dimensions are in millimeters unless otherwise indicated. Unless otherwise specified, a tolerance of ±0.2 mm applies to all dimensions.
Without Ground Terminal, without Boss With Ground Terminal, without Boss
Without Ground Terminal, with Boss With Ground Terminal, with Boss
1.95
1.7
0.9
3
3.2
4
2.5 1.4
2.6
±0.1
1.7
±0.1
4.2
±0.1
1.2
+0.15
0.10
1
±0.1
1.9
1.95
1.7
3
3.2
4
2.5 1.4
0.5
0.8
±0.1
1.1
±0.1
1.1
±0.1
2.6
±
0.1
1.7
±
0.1
4.2
±
0.1
0.9
1.2
+0.15
0.10
1
±
0.1
B3U-3100P
PCB Mounting
(Top View)
2.6
±0.1
1.7
±0.1
4.2
±0.1
1.95
3
3.2
4
2.5 1.4
0.5
1.2
+0.15
0.10
1
±0.1
1.7
0.9
Hole: 0.75
+0.1
0
dia.
0.65±
0.05
dia.
PCB Mounting
(Top View)
B3U-3000P-B
1.9
1.95
3
3.2
4
2.5 1.4
0.5
0.5
0.8
±
0.1
1.1
±
0.1
1.1
±
0.1
2.6
±
0.1
1.7
±
0.1
4.2
±
0.1
1.7
0.9
1.2
+0.15
0.10
1
±
0.1
Hole: 0.75
+0.1
0
dia.
0.65±
0.05
dia.
B3U-3100P-B
PCB Mounting
(Top View)
246 Ultra-small Tactile Switch B3U
Precautions
Be sure to read the precautions common to all Tactile Switches, contained in the Technical User’s Guide, “Tactile Switches, Technical Information”
for correct use.
Precautions for Correct Use
Soldering
Perform reflow soldering within the ranges shown in the terminal tem-
perature profile in the following diagram.
Washing
B3U Switches cannot be washed. Doing so will cause the washing
agent, together with flux or dust particles on the PCB, to enter the
Switch, resulting in malfunction.
Compliance with RoHS Directive
The “RoHS Compliant” designation indicates that the product does
not contain the following six hazardous substances covered by the
RoHS Directive.
Reference: The following standards are used to determine compli-
ance for the six substances.
Lead:1,000 ppm max.
Mercury:1,000 ppm max.
Cadmium:100 ppm max.
Hexavalent chromium:1,000 ppm max.
PBB:1,000 ppm max.
PBDE:1,000 ppm max.
Storage and Operating Environment
Do not store the product under the following conditions to prevent
discoloration and other deterioration of the terminals.
1. Locations subject to high temperatures or humidity
2. Locations containing corrosive gases
3. Locations subject to direct sunlight
The Switch is not provided with a watertight or drip-proof construc-
tion. Do not install or operate the product in locations subject to water
spray or splashes.
Packaging Specifications
The specifications for B3U Switches packaged on embossed tape
are as follows:
B3U-1000 Series
B3U-3000 Series
Operation
Do not repeatedly operate the Switch with excessive force. Applying
excessive pressure or applying additional force after the plunger has
stopped may deform the disc spring of the Switch, resulting in mal-
function. (Maximum force = 30N)
Be sure to set up the Switch so that the plunger will be pressed
straight in. The life of the Switch may be reduced if the plunger is
pressed off-center or from an angle. Do not apply pressure from
above or below the plunger. Doing so may deform or damage parts
or cause faulty operation.
Do not operate the plunger from the side. Doing so may deform or
damage the Switch.
Temperature (
°
C)
180
220
260 max.
150
Preheating time
Heating
time
Time (s)
60 to 120 60 max.
Standards Conforms to JEITA.
Package 3,500 Switches (B3U-1000 Series)
4,000 Switches (B3U-3000 Series)
Heat resistance 50°C for 24 hours (without deformation)
13 dia.
Reel
Label
Tape drawing
direction
(19)
330±
2
dia.
12±
0.3
5.5
1.75±
0.1
8+
0.1
4+
0.1
2
2.55
Tape drawing direction
1.5 dia.
+0.1
0
13 dia.
Label
Tape drawing
direction
(19)
Reel
330±
2
dia.
5.5
2.2
2
12±
0.3
1.75±
0.1
8+
0.1
4+
0.1
Tape drawing direction
1.5 dia.
+0.1
0