B3D Datasheet, PDF (1/6 Pages) Omron Electronics LLC – Ultra-low Profile Dome Key

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.
B3D-5112
(Example: Trial applications, commercial equipment, etc.)
• Applications requiring a single key only.
(Example: Reset buttons)
B3D-4112
Specifications
Item
Diameter of contact dome
Operating force (OF)
Releasing force (RF)
Pretravel (PT)
Height
Life expectancy
Switching capacity
Minimum permissible load
Ambient operating temperature
Ambient storage humidity
Contact - base material
Plating
Model
B3D-4112
B3D-5112
4-mm dia.
5-mm dia.
approx. 170 ± 50 gf (1.67± 0.49 N)
20 gf min. (0.2 N min.)
0.2 ± 0.1 mm
0.3 ± 0.1 mm
500,000 operations min.
1,000,000 operations min.
10 mA at 12 VDC (resistive)
1 mA at 3 VDC (resistive)
-40 to 80°C (at 60% RH max.) with no icing or condensation.
10% to 90% (at 40°C max.)
Stainless steel
Silver
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.
Ultra-low Profile Dome Key B3D 269