Product Features
Detailed Specifications
Pin Count & Assembly
Common pin count: 4–100 pins.
Models such as Smolex support 4–80 pins; industrial-grade series like Wcon 3640 feature higher pin density.
Most are breakable to allow custom pin lengths for different circuit requirements.
Mounting types: DIP (through-hole) and SMT (surface mount).
Stack height is adjustable for some board-to-board versions.
Wcon 3640 series supports stack heights from 4.15mm to 7.52mm, suitable for various PCB spacings.
Electrical Performance
Standard rated current: 1A.
Wcon 3640 series: rated voltage 100V AC, insulation resistance ≥ 500MΩ for enhanced signal stability.
Amphenol FitMate 1.0mm series: suitable for 32–28AWG wires, initial contact resistance ≤ 20mΩ, ideal for general signal transmission.
Contacts are mainly nickel underplated with gold plating; custom platings are available to reduce contact resistance and improve oxidation resistance.
Temperature Resistance & Environmental Compliance
Insulators: PA6T, LCP, PA46 or equivalent, UL94 V-0 flame retardant.
SMT versions withstand reflow temperatures up to about 260℃ for automated mass production.
Operating temperature: -40℃ to 105℃.
Most models are RoHS-compliant, some halogen-free.
Structural & Material Differences
Versatile Structures for Various Applications
Besides standard straight pins, right-angle and staggered double-row designs are available to relieve stress, ideal for automotive and industrial environments with vibration and temperature changes.
Industrial-grade models (e.g., Wcon 3640) include metal retainers and polarization structures to improve PCB retention and prevent mis-mating damage.
Some Amphenol models feature secure locking latches to avoid disconnection under vibration.
Unlocked versions such as SHD1.0 use optimized spring contacts for self-retaining, suitable for frequent plugging during testing.
High-Quality Materials
Contacts: brass (high conductivity) or phosphor bronze (high elasticity), ensuring stable contact after repeated mating.
SHD1.0 connectors with phosphor bronze pins exceed 500 mating cycles.
Insulators: high-temperature PA6T for SMT types; PBT available for DIP types, balancing flame retardancy and assembly compatibility.
Typical Applications
Consumer Electronics & DIY
Used in smart watches, TWS earbuds, micro camera modules for high-density signal transmission.
Popular for electronic DIY projects (e.g., micro remote cars) for easier soldering and more reliable connection.
Industrial & Precision Instruments
Suitable for PLC controllers, sensor modules, multi-channel data acquisition boards.
Wcon 3640 series also applied in humanoid robots and network communication equipment.
Automotive & Medical
Applied in automotive navigation LCD panels and displays.
Used in precision medical devices (e.g., medical endoscopes) for compact, stable internal connections.
