Nickel-plated 7mm four-legged metal domes with 1 contact and dustproof

High-strength 280gf high-life four-corner metal domes, 7mm contact

Product Characteristics

Tactile metal domes are momentary switch contacts that become normally open switches when used with a printed circuit board, flex circuit, or membrane. They are placed on printed circuit boards through pressure-sensitive adhesive tape, captured in a pocket design.

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Overview

Features

- Ratings (Resistive Load): 0.1A, 50V DC

- Contact Resistance: 1Ω or less

- Insulation Resistance: 10MΩ or more

- Withstanding Voltage: 100V AC for 1 minute

Mechanical

- Operating Force: 1.0N to 100N (φ4.0mm, φ5.0mm, φ6.0mm, φ7.0mm, φ8.0mm, φ8.40mm, φ8.5mm, φ10.0mm, φ12.2mm, φ16mm, φ21.0mm)

- Lifespan: 500,000 to 1,000,000 cycles

Applications

Used in input key switches for:

- Small remote controls

- Portable AV equipment

- Educational repeaters

- Quiz buzzers

- Security system intercoms

- Access control devices

- Mobile phones and smartphones

- PDAs

- Game controllers

- Medical devices

- Automotive central control systems

Triangle Oval Round Four-legged domes can be mounted to a wide variety of switching surfaces, including single or double-sided printed circuit boards, flex circuits, and membrane switch panels.

Parameters

Product	Model	Diameter	Datasheet	Height	Dotted	Lifetime	Stroke	Strength	Specs
	SD-X7A20-1D-DN	7.00 +0 /-0.15mm		0.39±0.05mm	1 dimple	500000(cycles)	0.31±0.05mm	200±30gf	Specs Product model : SD-X7A20-1D-DN Model :SD-X7A20-1D-DN Foot width :5.86± 0.10mm Outer diameter :7.00 +0 /-0.15mm Arc height :0.31±0.05mm Voltage :0.1-50V DC Current :0.005-100mA DC Material :SUS301Materials/T(mm)0.08 Plating :Nickel plating Work temperature :+105° -40° Storage temperature :+100° -55° apply download pdf
	SD-X7A22-1D-DN	7.00 +0 /-0.15mm		0.41±0.05mm	1 dimple	500000(cycles)	0.33±0.05mm	220±30gf	Specs Product model : SD-X7A22-1D-DN Model :SD-X7A22-1D-DN Foot width :5.86± 0.10mm Outer diameter :7.00 +0 /-0.15mm Arc height :0.33±0.05mm Voltage :0.1-50V DC Current :0.005-100mA DC Material :SUS301Materials/T(mm)0.08 Plating :Nickel plating Work temperature :+105° -40° Storage temperature :+100° -55° apply download pdf
	SD-X7A26-1D-DN	7.00 +0 /-0.15mm		0.43±0.05mm	1 dimple	500000(cycles)	0.35±0.05mm	260±30gf	Specs Product model : SD-X7A26-1D-DN Model :SD-X7A26-1D-DN Foot width :5.86± 0.10mm Outer diameter :7.00 +0 /-0.15mm Arc height :0.35±0.05mm Voltage :0.1-50V DC Current :0.005-100mA DC Material :SUS301Materials/T(mm)0.08 Plating :Nickel plating Work temperature :+105° -40° Storage temperature :+100° -55° apply download pdf
	SD-X7A28-1D-DN	7.00 +0 /-0.15mm		0.44±0.05mm	1 dimple	500000(cycles)	0.36±0.05mm	280±30gf	Specs Product model : SD-X7A28-1D-DN Model :SD-X7A28-1D-DN Foot width :5.86± 0.10mm Outer diameter :7.00 +0 /-0.15mm Arc height :0.36±0.05mm Voltage :0.1-50V DC Current :0.005-100mA DC Material :SUS301Materials/T(mm)0.08 Plating :Nickel plating Work temperature :+105° -40° Storage temperature :+100° -55° apply download pdf
	SD-X7A30-1D-DN	7.00 +0 /-0.15mm		0.45±0.05mm	1 dimple	500000(cycles)	0.37±0.05mm	300±30gf	Specs Product model : SD-X7A30-1D-DN Model :SD-X7A30-1D-DN Foot width :5.86± 0.10mm Outer diameter :7.00 +0 /-0.15mm Arc height :0.37±0.05mm Voltage :0.1-50V DC Current :0.005-100mA DC Material :SUS301Materials/T(mm)0.08 Plating :Nickel plating Work temperature :+105° -40° Storage temperature :+100° -55° apply download pdf

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Nickel-plated 7mm four-legged metal domes with 1 contact and dustproof

Features

Mechanical

Applications

Product · Application