B3D-4112 Omron, B3D-4112 Datasheet - Page 3

• Manufacturer Part Number: B3D-4112
• Description: 4MM DOME
• Manufacturer: Omron
• Series: B3Dr
• Type: Tactile Switchesr

Specifications of B3D-4112

• Circuit: SPST-NO
• Switch Function: Off-Mom
• Contact Rating @ Voltage: 0.01A @ 12VDC
• Actuator Type: Snap Dome
• Mounting Type: Surface Mount
• Orientation: Vertical
• Illumination: Non-Illuminated
• Operating Force: 167gf
• Contact Form: SPST - NO
• Termination Style: Through Hole
• Operating Temperature Range: - 40 C to + 80 C
• Contact Voltage Dc Nom: 12V
• Contact Current Max: 10mA
• Actuation Type: Top
• Switch Terminals: PCB / Push-on
• Operating Force Min: 1.18N
• Operating Force Max: 2.16N
• Rohs Compliant: Yes
• Actuator / Cap Color: White
• Actuator Style: Dome
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: B3D4112; SW978

B3D
Dimensions
Precautions
Note:
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. Press down on the
top surface using an elastic material, such as urethane rubber,
and a force of 2.94 to 4.9 N. Place a positioning mark (circle) on
the PCB for easy positioning.
Make sure that the position of the Dome Key is aligned correctly
before use. Significant misalignment may result in short-circuits or
reduced sensitivity.
Note:
Do not reuse a B3D Dome Key that has been detached from the
PCB. Attach a new Dome Key to the PCB.
Do not touch the contact dome with bare hands, or with unclean
gloves. Doing so may damage the contact dome, which is the part
that comes in contact with the PCB.
The Dome Key cannot withstand heat from reflow soldering.
Always perform reflow soldering before attaching the Dome Key
to the PCB.
Do not wash the Dome Key. The Dome Key is not water-resistant
and must not be exposed to water or other liquids.
B3D-4112
B3D-5112
Correct Use
Attaching to the PCB
Reflow Soldering
Washing
Be sure to read the Industrial Components General Cata-
log (Y202) before using the Dome Keys for general pre-
cautions.
The recommended vacuum pick-up tool is the Hozan
P-835 Vacuum Pick with an M suction pad (7-mm dia.).
(54)
(54)
10
10
10
10
(54)
(54)
10
10
10
10
25, 8.4 dia.
25, 7.4 dia.
10
10
10
10
10
10
10
10
Section A
Section A
0.3
0.3
Section A enlarged
Section A enlarged
0.3
0.3
B3D
3