Key Specifications and Features of SSMA RF Connectors
SSMA connectors are designed with precision and durability in mind. Below are some critical specifications and features derived from leading manufacturers and industry standards:
Electrical Performance
Frequency Range: DC to 35 GHz (extendable to 40 GHz in some designs)
Characteristic Impedance: 50 Ohms, ensuring signal integrity
VSWR:
DC to 18 GHz: Maximum 1.10:1
18 GHz to 27 GHz: Maximum 1.15:1
27 GHz to 36 GHz: Maximum 1.25:1
Voltage Rating: Typically around 250 V (RMS)
Insertion Loss: Low insertion loss for minimal signal degradation
Leakage: Extremely low leakage, ensuring signal purity
Mechanical and Environmental Specifications
Coupling Mechanism: 10-36 threaded nut for secure, vibration-resistant connections
Durability: Rated for over 500 mating cycles, highlighting long service life
Material Construction:
Housing: Stainless steel or brass with passivation or nickel plating
Center Contact: Gold-plated beryllium copper for excellent conductivity and corrosion resistance
Dielectric: Virgin PTFE (polytetrafluoroethylene) for stable dielectric properties
Operating Temperature Range: -55°C to +165°C, suitable for harsh environments
Mechanical Strength: Nut pull force ≥ 22.5 lbs; thread torque ≥ 10 in-lbs
Physical Dimensions
Size: Smaller than SMA connectors, enabling high-density PCB and panel mounting
Center Pin Diameter: Approximately 0.5 mm to 0.53 mm, allowing compatibility with smaller coaxial cables
