Ultra-low Profile Dome Key

B3D

269

Ultra-low Profile Dome Key

B3D

Single-key Type Added to Series of B3DA

Ultra-low Profile Dome Arrays

• No soldering required. Attach directly to PCB to make an ultra-low

profile tactile switch. Construction provides strong resistance to

static electricity by having no soldered terminals.

• Matrix adhesive used to create highly dust-proof construction

with good ventilation.

• Lower profile, lighter weight, and crisp clicking action.

• Omron's unique circular contact action ensures a high level

of resistance to foreign matter.

• RoHS Compliant.

Application Examples

Use Dome Keys for the operating parts on various electronic devices that require low-profile controls, as follows:

• Operating switches with few mounted parts above PCBs.

(Example: Camera operating buttons)

• Small orders, where initial investment in Dome Arrays is not feasible.

(Example: Trial applications, commercial equipment, etc.)

• Applications requiring a single key only.

(Example: Reset buttons)

Specifications

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-5112

B3D-4112

Item

Model

B3D-4112

B3D-5112

Diameter of contact dome

4-mm dia.

5-mm dia.

Operating force (OF)

approx. 170

± 50 gf (1.67± 0.49 N)

Releasing force (RF)

20 gf min. (0.2 N min.)

Pretravel (PT)

0.2

± 0.1 mm

Height

0.3

± 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

Silver