Oval-shaped (elliptical) shrapnel, 4.0mm * 2.8mm, nickel-plated dome sheet.

High-life 5-contact dust-proof metal sheet push switch

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 Film Transparent adhesive tape

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Overview

- 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 2.5N (φ4mm, φ4.5mm, φ5mm)

- 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

Parameters

Product	Model	Diameter	Datasheet	Height	Dotted	Lifetime	Stroke	Strength	Specs
	SD-X4B13-5D-DN	3.95±0.05mm*2.80 +0.05/ -0.00mm		0.24±0.03mm	5 dimples	500000(cycles)	0.18±0.03mm	130±20gf	Specs Product model : SD-X4B13-5D-DN Model :SD-X4B13-5D-DN Foot width :2.80 +0.05/ -0.00mm Outer diameter :3.95±0.05mm Arc height :0.18±0.03mm Voltage :0.1-50V DC Current :0.005-100mA DC Material :SUS301Materials/T(mm)0.55 Plating :Nickel plating Work temperature :+105° -40° Storage temperature :+100° -55° apply download pdf
	SD-X4B16-5D-DN	3.95±0.05mm*2.80 +0.05/ -0.00mm		0.245±0.03mm	5 dimples	500000(cycles)	0.19±0.03mm	160±20gf	Specs Product model : SD-X4B16-5D-DN Model :SD-X4B16-5D-DN Foot width :2.80 +0.05/ -0.00mm Outer diameter :3.95±0.05mm Arc height :0.19±0.03mm Voltage :0.1-50V DC Current :0.005-100mA DC Material :SUS301Materials/T(mm)0.55 Plating :Nickel plating Work temperature :+105° -40° Storage temperature :+100° -55° apply download pdf
	SD-X4B18-5D-DN	3.95±0.05mm*2.80 +0.05/ -0.00mm		0.255±0.03mm	5 dimples	500000(cycles)	0.20±0.03mm	180±20gf	Specs Product model : SD-X4B18-5D-DN Model :SD-X4B18-5D-DN Foot width :2.80 +0.05/ -0.00mm Outer diameter :3.95±0.05mm Arc height :0.20±0.03mm Voltage :0.1-50V DC Current :0.005-100mA DC Material :SUS301Materials/T(mm)0.55 Plating :Nickel plating Work temperature :+105° -40° Storage temperature :+100° -55° apply download pdf

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Oval-shaped (elliptical) shrapnel, 4.0mm * 2.8mm, nickel-plated dome sheet.

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