Ultra-low Profile Dome Array

B3DA

273

Ultra-low Profile Dome Array

B3DA

Ultra-low Profile Dome Array With Dust-Proof

Construction and Crisp Clicking Action

• 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, shape, etc.).

• RoHS Compliant.

Ordering Information

Note: Representative versions for engineering evaluation.

Specifications

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

■ Recommended Contact Form on PCB

4-mm Diameter Contact Dome

5-mm Diameter Contact Dome

Item

Model (see note)

4 mm dome array

B3DA-0010-A

5 mm dome array

B3DA-0000-A

Item

Model

B3DA-0010-A

and custom 4 mm dia. versions

B3DA-0000-A

and custom 5 mm dia. versions

Diameter of contact dome

4-mm dia.

5-mm dia.

Operating force (OF)

approx. 160

± 50 gf (1.57± 0.49 N)

Releasing force (RF)

20 gf min. (0.2 N min.)

Pretravel (PT)

0.2

± 0.1 mm

Height

0.25

± 0.1 mm

Life expectancy

500,000 operations min.

1,000,000 operations min.

Switching capacity

10 mA at 12 VDC (resistive)

Minimum permissible load

1 mA at 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.)

Contact - base material

Stainless steel

Plating

Unplated. (Silver plating available for custom models.)

Resist (30 to 50 µm)

2.8 dia.

1.8 dia.

5.2 dia.

Gold-plated nickel

Resist (30 to 50 µm)

3.8 dia.

2.3 dia.

6.2 dia.

Gold-plated nickel

2.0

1.2

0.4

2.8 dia.

1.8 dia.

5.2 dia.

Gold-plated

nickel

2.0

1.2

0.4

3.8 dia.

2.3 dia.

6.2 dia.

Gold-plated

nickel

Single-side PCB

Multilayer PCB

Single-side PCB

Multilayer PCB