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
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 |
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?
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.
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.
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.
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.
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.
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
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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.
Product Knowledge & Resources
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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