Ultra-low Profile Dome Array B3DA | OMRON Electronic Components Web

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Dome Arrays

No soldering required. Attach directly to PCB to make an ultra-low profile tactile switch.
Matrix adhesive used to create highly dust-proof construction with good ventilation. Omron’s unique circular contact action ensures a high level of resistance to foreign matter.
Lower profile, lighter weight, and crisp clicking action.
Customization of Dome Array available upon request (i.e., silver plating, number of contacts, shpae, etc.)

Updated October 24, 2011

This web page provides an excerpt from a datasheet.
Refer to Datasheet and other applicable documents for more information.

Specifications

Item	Model
Item	4-mm dia. versions	5-mm dia. versions
Diameter	4 mm dia.	5 mm dia.
Operating force (OF)	1.57±0.49 N {160±50 gf}
Releasing force (RF)	0.2 N {20 gf} min.
Pretravel (PT)	0.2±0.1 mm
Height	0.25±0.1 mm
Durability	500,000 operations min.	1,000,000 operations min.
Switching capacity	10 mA, 12 VDC (resistive) Recommended min. load: 1 mA, 3 VDC (resistive)
Ambient operating temperature	−40 to 80°C (at 60% RH max.) with no icing or condensation.
Ambient storage humidity	10% to 90% (at 40°C max.)
Material	Stainless steel
Plating	Unplated. silver

Note: Contact dome specifications not shown in this table are also available. Consult Omron for customization requirements.

Note: All units are in millimeters, unless otherwise in diated.

Recommended Contact Form

4-mm Diameter Contact Dome

5-mm Diameter Contact Dome