Interphone Cross Type Metal Dome

Interphone Cross Type Metal Dome
Product Introduction:
Shanyo precision-engineers interphone cross type metal domes for two-way radios, walkie-talkies, and professional communication devices. Stamped from ultra-thin SUS301 stainless steel, our cross-shaped four-leg domes deliver crisp, consistent tactile feedback for PTT (push-to-talk) buttons, channel selectors, volume controls, and function keys on portable radios. Available in diameters from 6mm to 12mm with customizable actuation forces of 150–400gf, these domes support over 1,000,000 lifecycle cycles and operate reliably from -40°C to +85°C. Supplied as loose domes or PET film arrays with 3M adhesive for fast SMT assembly, Shanyo's interphone metal domes are manufactured under IATF 16949 quality systems and trusted by leading two-way radio OEMs worldwide.
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Description
Technical Parameters

Product Type: Cross Type / Four-Leg Metal Dome

Material: SUS301 Stainless Steel (304 available on request)

Thickness: 0.05mm - 0.10mm (Tolerance ±0.005mm)

Diameter Range: 6mm / 7mm / 8.4mm / 10mm / 12mm (Custom sizes supported)

Actuation Force: 150gf - 400gf (Tolerance ±20gf; up to 600gf custom)

Travel Distance: 0.15mm - 0.35mm | Click Ratio: 55% - 65%

Contact Resistance: 100mΩ max (Ni); 50mΩ max (Au) | Insulation Resistance: 100MΩ min at 250V DC

Life Cycle: 1,000,000+ cycles under standard test conditions | Operating Temperature: -40°C to +85°C (Extended range available)

Surface Plating: Nickel (Ni) / Gold (Au) / Silver (Ag); Au: 0.15-0.2μm | Supply Form: Loose domes or PET film arrays with 3M adhesive

RoHS Compliance: Yes | REACH also available | Quality Standard: IATF 16949 certified manufacturing

Interphone Cross Type Metal Dome

 
Structure: Cross-shaped four-leg support, center dimple optional
Diameters: 6mm, 7mm, 8.4mm, 10mm, 12mm (customizable)
Actuation Force: 150gf-400gf (custom up to 600gf)
Travel Distance: 0.15mm-0.35mm
Life Cycle: 1,000,000+ cycles
Material: SUS301 stainless steel, Ni/Au/Ag plating options
Operating Temp: -40C to +85C
Supply Form: Loose domes or PET film arrays with 3M adhesive

 

What Is Interphone Cross Type Metal Dome?

 

The interphone cross type metal dome is a precision-engineered snap action component stamped from ultra-thin SUS301 spring stainless steel (0.05mm-0.1mm thickness), purpose-built for the control interfaces of two-way radios, walkie-tal

Technical Specifications

 
Parameter Specification Notes
Material SUS301 Stainless Steel 304 available on request
Thickness 0.05mm - 0.10mm Tolerance 0.005mm
Diameter Range 6mm / 7mm / 8.4mm / 10mm / 12mm Custom sizes supported
Actuation Force 150gf - 400gf Tolerance 20gf; up to 600gf custom
Travel Distance 0.15mm - 0.35mm Longest among dome types
Click Ratio 55% - 65% Crisp tactile feedback
Contact Resistance 100mΩ max (Ni); 50mΩ max (Au) Initial value
Insulation Resistance 100MΩ min At 250V DC
Life Cycle 1,000,000+ cycles Under standard test conditions
Operating Temperature -40C to +85C Extended range available
Surface Plating Nickel (Ni) / Gold (Au) / Silver (Ag) Au: 0.15-0.2μm
RoHS Compliance Yes REACH also available
kies and professional communication gear. Its distinctive cross-shaped four-leg geometry delivers exceptional positional stability and a crisp, audible click that users can both feel and hear.

 

When pressed, the dome center point deflects downward to make contact with the PCB trace below, completing the circuit. Upon release, the material inherent elasticity snaps it back to its original shape, breaking contact - creating the reliable press-conduct, release-disconnect switching cycle that communication devices depend on.

Compared to round or triangular domes, the cross-type variant offers the longest travel distance and the most pronounced tactile feedback - making it the preferred choice for PTT (push-to-talk) buttons, channel selectors, volume rockers and function keys where operators need confirmation without looking down.

Shanyo supplies these domes either as individual loose pieces or pre-mounted on PET carrier films with 3M adhesive backing - ready for rapid pick-and-place assembly. Customization covers diameter, actuation force, center dimple presence, and surface plating (nickel for corrosion resistance, gold for high-conductivity applications, silver for cost-effective performance).

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Why Choose Shanyo Interphone Cross Domes?

 
Max Travel

Maximum Travel & Crisp Feel

Cross-type domes deliver the longest press travel among all dome shapes, producing a distinct audible click that radio operators rely on for blind operation of PTT and channel keys.

Stability

Superior Stability

The four-leg support structure distributes stress evenly across contact points, preventing lateral shift and ensuring consistent electrical contact even under high-frequency or rough field use.

Durability

Million-Cycle Durability

Premium imported SUS301 material combined with precision heat treatment achieves over 1,000,000 actuation cycles - far exceeding the demands of professional two-way radio lifecycles.

Environment

Extreme Environment Ready

Operates reliably from -40C to +85C with strong moisture and salt-spray resistance - essential for outdoor, industrial and public safety communication equipment used in harsh conditions.

Assembly

Simplified Assembly

Available pre-mounted on PET carrier films with 3M adhesive and ventilation holes, enabling fast pick-and-place assembly and significantly reducing production complexity and labor costs.

Custom

Full Customization

Tailor every parameter to your radio design - diameter from 6mm to 14mm, force from 150gf to 600gf, center dimple presence, and Ni/Au/Ag plating - with free engineering support and samples.

Applications & Use Cases

 
Two-Way Radio Metal Dome Application

Two-Way Radios & Walkie-Talkies

PTT buttons, channel selectors, volume controls, and function keys on portable radios require the crisp tactile feedback and long travel that cross-type domes provide.

Bluetooth Headset Metal Dome Application

Bluetooth Headsets & Earphones

Power, volume, play/pause, and call answer buttons on wireless headsets benefit from the compact size and reliable million-cycle durability of cross domes.

Remote Control Metal Dome Application

Remote Controls

TV, AC, and smart home remote keypads use cross-type domes for their excellent positional stability and consistent click feel across hundreds of button presses daily.

Automotive Electronics Metal Dome Application

Automotive Electronics

Dashboard controls, steering wheel buttons, and infotainment systems rely on cross domes for their wide operating temperature range and vibration-resistant design.

Industrial Control Metal Dome Application

Industrial Control Panels

Factory automation HMI, PLC interfaces, and machine control buttons require domes that withstand dust, moisture, and high-frequency operation in demanding environments.

Medical Devices Metal Dome Application

Medical Devices

Patient monitors, diagnostic equipment, and portable medical devices use gold-plated cross domes for their low contact resistance, biocompatibility, and long-term reliability.

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Four-legged cross domes with maximum travel distance and superior stability, ideal for PTT and function key applications.

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Shanyo Factory

About Shanyo Precision Electronics

Qingdao Shanyo Precision Electronics Technology Co., Ltd. is a leading manufacturer of metal domes, tactile switches, and precision stamping components with over 20 years of industry experience. Our 8,000㎡ factory houses 12 high-speed stamping lines, producing over 50 million domes monthly for customers across 40+ countries.

Certified to IATF 16949, ISO 9001, and ISO 13485 standards, we serve the automotive, medical, consumer electronics, and industrial control sectors with OEM/ODM capabilities, free engineering support, and rapid sample turnaround.

20+
Years Experience
50M+
Monthly Output
40+
Countries Served
12
Stamping Lines

Product Knowledge & Resources

 
Metal Dome Manufacturing Process

Metal Dome Manufacturing Process: From Raw Material to Finished Component

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Metal Dome Force Testing

Understanding Metal Dome Force Curves and Tactile Feedback

Learn how actuation force, click ratio, and travel distance affect the user experience of tactile switches...

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Metal Dome Types Comparison

Round vs Triangle vs Cross: Choosing the Right Metal Dome Shape

A comprehensive comparison of different metal dome shapes and their ideal application scenarios...

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Walkie talkie application

PET Film Dome Arrays: Simplifying Keypad Assembly for Mass Production

How pre-assembled dome arrays on PET carrier films reduce assembly time and improve production yield...

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Frequently Asked Questions

 

Q: What is the minimum order quantity (MOQ) for interphone cross type metal domes?

A: Our standard MOQ is 10,000 pieces for stock sizes. For custom specifications, the MOQ is typically 50,000 pieces. We also offer sample orders of 100-500 pieces for evaluation purposes at competitive pricing.

Q: How long does it take to receive custom cross type metal dome samples?

A: Standard stock samples ship within 3-5 business days. Custom tooling and samples typically take 10-15 business days. For urgent projects, we offer expedited service with 5-7 day sample delivery at an additional cost.

Q: Can cross type metal domes be used in waterproof devices?

A: Yes, when properly sealed with silicone gaskets or waterproof membranes, cross type metal domes can achieve IP67 and higher waterproof ratings. We recommend using gold-plated domes for humid or wet environments to prevent corrosion and ensure long-term reliability.

Q: What plating options are available and which should I choose?

A: We offer Nickel (Ni), Gold (Au), and Silver (Ag) plating. Nickel is cost-effective for general applications. Gold provides superior corrosion resistance and low contact resistance, ideal for medical and high-reliability devices. Silver offers excellent conductivity for high-current applications. Our engineers can help you select the optimal plating based on your specific requirements.

Q: Do you provide technical support for dome integration into my product design?

A: Absolutely. Our experienced engineering team provides free technical support including dome selection guidance, force curve analysis, PCB pad design recommendations, and assembly process optimization. We can also provide 3D models, dimensional drawings, and application notes to facilitate seamless integration into your design

Key Features & Benefits

Superior Tactile Feedback: Our cross type metal domes deliver a crisp, audible click with consistent actuation force, ensuring users receive clear confirmation with every press - critical for PTT operations in noisy field environments.

Four-Leg Stability Design: The cross-shaped four-leg structure provides enhanced mechanical stability and uniform force distribution, preventing dome rotation or misalignment during high-volume assembly and rugged field use.

Extended Lifecycle Performance: Engineered for 1,000,000+ actuation cycles, these domes maintain consistent force and contact resistance throughout their service life, reducing field failure rates and warranty costs for two-way radio manufacturers.

Wide Temperature Tolerance: Operating reliably from -40°C to +85°C, our domes deliver consistent performance in extreme outdoor conditions - from freezing winter patrols to scorching desert operations and humid marine environments.

Flexible Supply Formats: Available as loose individual domes for manual assembly or pre-mounted on PET film arrays with 3M adhesive for automated SMT placement, reducing assembly time and improving placement accuracy for high-volume production.

Typical Applications

Our interphone cross type metal domes are engineered for a wide range of two-way communication devices, including: professional two-way radios and walkie-talkies for public safety, security, and industrial teams; PTT (push-to-talk) buttons and side keys on portable communication devices; channel selector knobs and volume control buttons on two-way radios; emergency call buttons and function keys on professional communication equipment; keypad interfaces on marine radios, aviation headsets, and military communication devices; smart wearable communication devices and body cameras.

Quality Assurance & Testing

Every batch of interphone cross type metal domes undergoes rigorous quality control under our IATF 16949 certified manufacturing system: Force Consistency Testing with 100% inline force verification ensuring actuation force stays within ±10% tolerance; Contact Resistance Measurement verifying stable contact resistance below 50mΩ for reliable signal transmission; Lifecycle Endurance Testing with sample batches subjected to 1,000,000+ cycle tests to validate long-term performance; Environmental Simulation Testing including temperature cycling, humidity exposure, and vibration testing to validate performance under harsh field conditions; Dimensional Precision Inspection with automated optical inspection verifying diameter, leg geometry, and dome height within ±0.02mm tolerance..

 

Ready to Elevate Your Two-Way Radio Design?

Partner with Shanyo for premium interphone cross type metal domes. Get free engineering support, custom samples within 2 weeks, and competitive factory pricing for volumes from 10K to 10M+ pieces.

 

Looking for a walkie-talkie cross type metal dome supplier? We also manufacture two-way radio snap domes, PTT button metal domes, and Bluetooth headset dome switches for communication device OEMs. Explore our consumer electronics metal dome range or request a free sample.

Email: sales@shanyo.com | Tel: +86-532-XXXX-XXXX | Response within 24 hours

 

 

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