B3D-4112 Omron, B3D-4112 Datasheet
B3D-4112
Specifications of B3D-4112
SW978
Related parts for B3D-4112
B3D-4112 Summary of contents
Page 1
... Ambient storage temperature Contact dome Plating Note: The Dome Keys are sold in units of 500 (20 sheets, with 25 Dome Keys per sheet). Orders must be made in multiples of 500 Dome Keys. B3D-4112 4-mm dia. 1.67 ± 0.49 N 0.2 N min. 0.2 ± 0.1 mm 0.3 ± 0.1 mm 500,000 operations min ...
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... Resist ( µm) 2.8 dia. 5.2 dia. Gold-plated nickel 1.8 dia. Multilayer PCB 2.8 dia. Recommended Operating Part Form 4-mm Diameter Contact Dome (B3D-4112) Resin 1 dia. Entire circumference: R 0.2 2 Circular Contact When contact dome keys are attached to the PCB, any PCB dust or foreign particles will tend to collect in the center of the key when it is pressed ...
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... B3D Dimensions B3D-4112 B3D-5112 Precautions Correct Use Note: Be sure to read the Industrial Components General Cata- log (Y202) before using the Dome Keys for general pre- cautions. Attaching to the PCB Remove the Dome Key from the sheet using tweezers or a vac- uum pick-up tool, and attach it above the contact on the PCB sur- face, which has been wiped clean in advance ...
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... B3D PCB Pattern Diagrams (Full scale) B3D-4112 ALL DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527. Cat. No. A158-E1-01 In the interest of product improvement, specifications are subject to change without notice. OMRON Corporation Electronic Components Company Electronic & ...
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... Standard Switches are not sealed, and cannot be washed. Doing so will cause the washing agent, together with flux or dust parti- cles on the PCB, to enter the Switch, resulting in malfunction. Precautions PCB surface Flux surface 220 180 Preheating 150 60 to 120 Max. 60 Time (s) B3W, B3WN, B3S, B3SN B3DA, B3D 5 ...
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... Switch through respira- tion as the Switch cools. Wait for at least three minutes after sol- dering before cleaning washable models. Do not use Sealed Switches while submersed in water or in loca- tions exposed to water. Switch Packaging (Taping Specification Models) 1 ...
Page 7
... Make sure that the polarity of the LEDs is correct. The polarity is not indicated on the Switch, but the positive pole is located on the back surface of the Switch on the side without the OMRON mark. Connect limiting resistors to the LEDs. The Switch does not have built-in limiting resistors, so satisfy the LED characteristics by obtaining the limiting resistance according to the following formula based on the voltage to be used ...