VMANX P+R (Plastic + Rubber) Key Interface Circuit Switchis a high-performance,Highly integrated human-machine interface solution.
It features a dual-layer structure:
Upper Layer: P+R keypad assembly, integrally molded(keys, frame,silicone rubber) via precision injection molding.Surface treatments include laser engraving and paintingfor visual/tactile customization.
Lower Layer: Flexible Printed Circuit (FPC) or rigid PCB,Integrating metal dome switches, LEDs, and SMT components.
Bonding Method: High-precision double-sided adhesiveEnsures structural stability and sealing.
Core Functions: Silicone rubber and metal domes provideTactile feedback; Silicone acts as a light guide for uniformLED illumination. Ideal for appliances, industrial controls,Medical devices, and automotive electronics.
| Electrical Parameters | ||
| Parameter | Specification | Test Conditions |
| Operating Voltage | 3-24 V DC | -- |
| Rated Current | ≤ 50 mA(touch point) / ≤ 20 mA (LED) | Normal temperature 25℃ |
| Contact Resistance | ≤100mΩ | Initial state, 1kHz AC |
| Insulation Resistance | ≥100 MΩ | 500V DC, normal temp/humidity |
| Dielectric Strength | AC 500V, 1 min (no breakdown) | Between touch point and housing |
| LED Brightness & CCT | Customizable (White: 5000-6000K;RGB available) | Drive current: 10-15mA |
| Mechanical & Structural Parameters | |
| Parameter | Specification |
| Key Travel | 0.2-1.0 mm (customizable) |
| Operating Force | 160±30 gf (std.), range 80-350 gf |
| Reset Force | ≥ 70% of operating force |
| Lifespan | ≥1,000,000 cycles |
| Silicone Hardness | 40-60 Shore A (optimized for light guide) |
| Operating Temperature | -40℃to+85℃ |
| Protection Rating | IP67 (dustproof, waterproof) |
| Durability & Environmental Resistance |
| Mechanical lifespan: ≥ 1 million presses (per IEC 60529, no structural/functional degradation). |
| Environmental Resilience : |
| Temperature cycling (-40℃→ 85℃, 100 cycles): No brittleness or silicone deformation. |
| Humidity test (40℃C,93% RH, 240h): Contact resistance change ≤ 10%. |
| Chemical resistance: Coating passes ISO 4611 tests (alcohol, sweat, cleaners; 500 wipes without peeling). |
| IP Rating (Protection Class) |
| IP67 Certified |
| Dustproof (6) : Impervious to dust (industrial-grade). |
| Waterproof (7) : Survives 30 min immersion in 1m water. |
| Sealing design:Silicone edges + full-perimeter adhesive prevent liquid/particle ingress. |
| Surface Finishes & Visual Options |
| Processing Options : |
| Laser engraving: High-precision symbols/icons (resolution ≤ 0.1mm), wear-resistant.. |
| `Spray coating:matte/glossy/metallic finish, custom Pantone colours(compliant with European and American brand VI systems). |
| Light guide design : ≤ 15% light loss; glare-free, uniform LED diffusion.. |
| `Customization : Key shapes, textures (grid/dot patterns), backlit zone designs. |
| Ergonomic & Tactile Feedback |
| Touch optimisation: |
| Adjustable force curves (gradual/snap-action) for clear actuation (click ratio ≥ 60%).. |
| `Low-noise :≤ 45 dB (measured at 30cm). |
| Light uniformity: ≥85%(CIE L*a*b*standard). |
| Tactile aids:Center bumps/border ridges for blind operation.. |
| Circuit Layer Compatibility | ||
| Type | Advantages | Applications |
| flexible circuit | Bendable, vibration-resistant; ≤0.3mm | Curved devices, wearable products |
| Rigid PCB | Stability;complex multi-LED routing | Industrial/medical equipment |
| Custom Services |
| Layouts: Non-standard shapes (round/irregular), multi-key matrices (e.g.,4x4). |
| Features: |
| Zoned backlight control (independent LED groups). |
| Pressure sensing (resistive/capacitive layers). |
| ESD protection (±15kV air discharge; IEC 61000-4-2). |
| ESD protection (±15kV air discharge, IEC 61000-4-2). |
| Standard | Certification | Region |
| Electrical Safety | UL 94 V-0 (flame retardant),CE Low Voltage | North America/EU |
| Eco-Compliance | RoHS 3, REACH (SVHC < 0.1%) | Global |
| Reliability Tests | IEC 60529, IEC 60068-2(环境应力) | Industrial |
| Design Collaboration : DFM (Design for Manufacturability) analysis & 3D models (STEP format). |
| Supply Chain |
| Lead time : 30-45 days (MOQ 5,000pcs). |
| Logistics: EU/NA local warehouses; DDP terms supported. |
| Warranty |
| 18-month coverage (incl. environmental stress failures). |
| FA support: Failure analysis report within 48h. |
Dongguan Zhongman Industrial Co., Ltd.
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