8.4mm four-corner dome switch with single-sided gold plating.

Gold-Plated Cross-Shaped Metal Domes, 320gf Four-Legged Metal Dome Switches

Product Characteristics

Plating: Nickel, Silver, Gold

Resistance: Gold plating < Silver plating < Nickel plating < Stainless steel < 1Ω

Contact Points: Without apex, 1 apex, raised apex, through hole (hole diameter 2.2mm, 3.0mm, 4mm)



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Overview

1.Four-Legged Support: The cross-shaped metal dome has four legs for support, ensuring stable pressing and rebound performance, which improves the reliability and durability of the button.

2.High Sensitivity: The metal dome responds quickly to pressing operations, allowing rapid completion of on-off actions.

3.Long Lifespan: Designed to withstand millions of press cycles, suitable for applications requiring frequent pressing.

4.Low Contact Resistance: Made from high-quality conductive materials, it ensures low contact resistance for stable electrical connections.

5.High Consistency: Manufactured with precision to ensure consistency in size and performance for each metal dome.

6.Clear Tactile Feedback: Provides clear tactile feedback when pressed, enhancing the user’s operational experience.

7.High Durability: Made from stainless steel and other corrosion-resistant materials, offering excellent durability and resistance to environmental changes.

8.Working Principle: The four-legged metal dome operates with the dome top as the main interface and the four extending legs as support. When the main interface is pressed by the user, the central dome on the main interface contacts the PAD on the circuit, forming a circuit with the legs, thus generating a conduction phenomenon.

9.Applications:The products include PAM4 error detector, coverage error detector, multi-channel coherent signal source, microwave analog signal source, signal acquisition and playback, RF acquisition, recording, and playback system, microwave up/down converters, and multi-channel vector source.

Parameters
Product Model Diameter Datasheet Height Dotted Lifetime Stroke Strength Specs
SD-X84A20-1D-DJ 8.40+0/-0.15mm 0.48±0.05mm 1 dimple 500000(cycles) 0.40±0.05mm 200±20gf
Product model : SD-X84A20-1D-DJ
  • Model :SD-X84A20-1D-DJ
  • Foot width :7.05±0.1mm
  • Outer diameter :8.4+0/-0.15mm
  • Arc height :0.40±0.05mm
  • Voltage :0.1-50V DC
  • Current :0.005-100mA DC
  • Material :301Materials/T(mm)0.08
  • Plating :Gold-Plated
  • Work temperature :+105° -40°
  • Storage temperature :+100° -55°
SD-X84A26-1D-DJ 8.40+0/-0.15mm 0.53±0.05mm 1 dimple 500000(cycles) 0.45±0.05mm 260±20gf
Product model : SD-X84A26-1D-DJ
  • Model :SD-X84A26-1D-DJ
  • Foot width :7.05±0.1mm
  • Outer diameter :8.4+0/-0.15mm
  • Arc height :0.45±0.05mm
  • Voltage :0.1-50V DC
  • Current :0.005-100mA DC
  • Material :301Materials/T(mm)0.08
  • Plating :Gold-Plated
  • Work temperature :+105° -40°
  • Storage temperature :+100° -55°
SD-X84A28-1D-DJ 8.40+0/-0.15mm 0.54±0.05mm 1 dimple 500000(cycles) 0.46±0.05mm 280±20gf
Product model : SD-X84A28-1D-DJ
  • Model :SD-X84A28-1D-DJ
  • Foot width :7.05±0.1mm
  • Outer diameter :8.4+0/-0.15mm
  • Arc height :0.46±0.05mm
  • Voltage :0.1-50V DC
  • Current :0.005-100mA DC
  • Material :301Materials/T(mm)0.08
  • Plating :Gold-Plated
  • Work temperature :+105° -40°
  • Storage temperature :+100° -55°
SD-X84A32-1D-DJ 8.40+0/-0.15mm 0.55±0.05mm 1 dimple 500000(cycles) 0.47±0.05mm 320±20gf
Product model : SD-X84A32-1D-DJ
  • Model :SD-X84A32-1D-DJ
  • Foot width :7.05±0.1mm
  • Outer diameter :8.4+0/-0.15mm
  • Arc height :0.47±0.05mm
  • Voltage :0.1-50V DC
  • Current :0.005-100mA DC
  • Material :301Materials/T(mm)0.08
  • Plating :Gold-Plated
  • Work temperature :+105° -40°
  • Storage temperature :+100° -55°
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Product · Application

Electronic switches are widely used in various fields, including home, business, automotive, electronics and industry.

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