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Dimensions
Unit: mm
B3DA-0000-A
Separator
(paper)
Sheet thickness (0.05)
Contact dome 5 dia. (18 keys)
diameter
B3DA-0010-A
Cover film
Two, 2.1 dia.
Contact dome (5 dia.)
Thickness: 0.06
Four, R5
A-A cross section
B enlarged
Separator (paper)
Operating
force (OF)
Plating
1.57 ± 0.49 N
Unplated
Sheet thickness (0.05)
Contact dome 4 dia. (18 keys)
diameter
Cover film
Two, 2.1 dia.
Contact dome (4 dia.)
Thickness: 0.06
Four, R5
B enlarged
A-A cross section
Construction
Circular Contact
When Dome Arrays are attached to the PCB, any PCB dust or
foreign particles will tend to collect in the center of the key when it is
Operating
force (OF)
Plating
Cover film
Matrix adhesive
1.57 ± 0.49 N
Unplated
Stainless steel contact dome
(circular contact)
pressed. Therefore, poor contact occurs easily in Dome Arrays that
provide contact at the center point only.
The circular contact construction provides contact along the circumference
of a circle, thus preventing poor contact by avoiding the center point.
Separator
Conventional models
Contact dome resistant to
forei g n matter (circular contact)
Matrix Adhesive
The surface structure of this adhesive has grid-shaped slits, as
shown in the following cross-sectional diagram. These slits provide
both ventilation and dust-proofing, which is required for contact dome
operation.
Cover film
Contact at center point
Cylindrical protrusion
Contact alon g
circle circumference
(circular contact)
15 μ m
Slits
Matrix (acrylic)
adhesive: 25 μ m
274
Ultra-low Profile Dome Array
B3DA
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相关PDF资料
B3F-1002-G SWITCH TACTILE SPST-NO 0.05A 24V
B3F-1056 SWITCH TACTILE SPST-NO 0.05A 24V
B3F-6120 SWITCH TACTILE SPST-NO 0.05A 24V
B3FS-1050P SWITCH TACTILE SPST-NO 0.05A 24V
B3FS-4002P SWITCH TACT SPST-NO 0.05A 24V
B3J-7400 SWITCH PUSH SPST-NO 0.05A 24V
B3M-6009 SWITCH TACTILE SPST-NO 0.05A 12V
B3S-1002 BY OMZ SWITCH TACTILE SPST-NO 0.05A 24V
相关代理商/技术参数
B3DA0010A 制造商:Omron Electronic Components LLC 功能描述:4MM SAMPLE SHEET(18 DOMES PER) - Trays 制造商:Omron Electronic Components LLC 功能描述:SWITCH TACTILE SPST-NO 0.01A 12V
B3DA-0010-A 功能描述:触觉开关 4mm dome w/adhesive 18 domes per sheet RoHS:否 制造商:C&K Components 工作力:2 N 执行器:Round 电流额定值:50 mA 电压额定值 DC:32 V 电压额定值 AC: 功率额定值:1 VA 接地端子:Yes 触点形式:SPST-NO 开关功能: 安装风格:SMD/SMT 安装方向:Right 晶体管管座高度: 颜色: 照明:Not Illuminated 照明颜色: 封装:
B3DBLACK 制造商:未知厂家 制造商全称:未知厂家 功能描述:SWITCH HEAD 22.5MM FLUSH BLACK
B3DBLUE 制造商:未知厂家 制造商全称:未知厂家 功能描述:SWITCH HEAD 22.5MM FLUSH BLUE
B3DGREEN 制造商:未知厂家 制造商全称:未知厂家 功能描述:SWITCH HEAD 22.5MM FLUSH GREEN
B3DLBLUE 制造商:未知厂家 制造商全称:未知厂家 功能描述:SWITCH HEAD 22.5MM ILLUMIN. BLUE
B3DLGREEN 制造商:未知厂家 制造商全称:未知厂家 功能描述:SWITCH HEAD 22.5MM ILLUMIN. GREEN
B3DLRED 制造商:未知厂家 制造商全称:未知厂家 功能描述:SWITCH HEAD 22.5MM ILLUMIN. RED