Product Details Portlet

B3AL Long-stroke Tactile Switch (SMT)

Long-stroke Tactile Switches with High Operating Forces and Long Life.

  • High operating force also providing long life.
    (Reference values: OF = 5 N {510 gf}, Durability = 500,000 operations)
  • Long stroke achieved by using a rubber plunger.
  • Introduction of B3AL
    Promotion movie : Introduction of B3AL

    Long stroke tactile switch B3AL (English Ver)

RoHS Compliant
Model 2D/3D CAD ECAD(Download symbol,FootPrint,3DCAD)
* External site (Ultra Librarian) opens in a new window.
B3AL-1000P Download Download
B3AL-1001P Download Download
B3AL-1002P Download Download
B3AL-1003P Download Download
(*) Ultra Librarian uniquely created ECAD data based on the information provided by OMRON. Please note that OMRON does not guarantee the accuracy, concurrence or completeness of ECAD data.
Note: This web page provides an excerpt from a datasheet. Refer to Product Datasheet and other applicable documents for more information.

List of Models / Operating Characteristics

Color of pushbutton Red Green Black White (Milky-white) Brown
Operating force (OF) 1.96±0.59N
{ 200±60 gf }
{ 250±70 gf }
{ 306±92 gf }
{ 357±107 gf }
{ 408±122 gf }
Releasing force (RF) 0.24 N {24 gf} min. 0.49 N {50 gf} min. 0.60 N {61 gf} min. 0.70 N {71 gf} min. 0.70 N {71 gf} min.
Pretravel (PT) 1.3+0.2/−0.3mm
Packaging Embossed tape Model B3AL-1000P B3AL-1001P B3AL-1002P B3AL-1003P B3AL-1006P
Minimum packing unit 1,400 pcs
Color of pushbutton Pink Blue Gray Yellow
Operating force (OF) 4.50±1.35N
{ 459±138 gf }
{ 510±153 gf }
{ 306±92 gf }
{ 357±107 gf }
Releasing force (RF) 0.70 N {71 gf} min. 1.00 N {102 gf} min. 0.60 N {61 gf} min. 0.70 N {71 gf} min.
Pretravel (PT) 1.3+0.2/-0.3mm
Packaging Embossed tape Model B3AL-1005P B3AL-1004P B3AL-1002P-MS B3AL-1003P-MS
Minimum packing unit 1,400 pcs

Ratings / Characteristics

Rating (resistive load) 1 to 50 mA at 5 to 16 VDC
Ambient operating temperature -40°C to +90°C at 60%RH max. (with no icing or condensation)
Ambient operating humidity °C) 35% to 85% (at +5 to +35 °C)
Contact configuration SPST-NO
Contact resistance 100 mΩ max.
Insulation resistance 100 MΩ min. (at 500 VDC with insulation tester)
Dielectric strength 250 VAC, 50/60 Hz for 1 min
Bounce time 5 ms max. (The center of the plunger is pressed at a speed of 3 or 4 times per second.)
Vibration resistance Malfunction 10 to 55 Hz, 1.5-mm double amplitude
Shock resistance Destruction 1,000m/s2 max.
Malfunction 100m/s2 max.
Durability B3AL-1000P : 1,000,000 operations min.
B3AL-1001P : 1,000,000 operations min.
B3AL-1002P : 1,000,000 operations min.
B3AL-1003P : 1,000,000 operations min.
B3AL-1004P : 500,000 operations min.
B3AL-1005P : 1,000,000 operations min.
B3AL-1006P : 1,000,000 operations min.
B3AL-1002P-MS : 1,000,000 operations min.
B3AL-1003P-MS : 1,000,000 operations min.
Weight Approx. 0.18 g


(Unit: mm)

Dimensions:B3AL for Automotive


Precautions for Correct Use


Do not exceed the following terminal temperature profile during soldering in a reflow oven.

Terminal temperature profile

The Switches are not sealed, and 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.

Packaging Specifications

The packaging specifications for B3AL Switches in embossed taping are given below.

The packaging specifications in embossed taping
  1. Do not repeatedly operate the Switch with excessive force.
    Applying excessive pressure or applying additional force after the plunger has stopped may deform the disk spring of the Switch, resulting in malfunction.
  2. Be sure to set up the Switch so that the plunger will operate in a straight vertical line.
    the plunger is pressed of-center or from an angle it may cause deformation or damage to some parts.
  3. We recommend using a round bar with a diameter of at least 3mm as the actuator.
Operation for B3AL
Dust Countermeasures

Do not mount or use the Switch in areas that are subject to dust.
If dust is unavoidable, protect the Switch with a sheet or other countermeasure.

Water and Drip Resistance

The switch is not water or drip resistant.
Do not use it in locations subject to water.