SMA Right-Angle Male Connector with Internal Thread and Pin (Compatible with RG402 086 Semi-Rigid/Semi-Flexible Cable)
Designed specifically for precision RF connection scenarios, the SMA right-angle male connector with internal thread and pin is the ideal matching solution for the semi-rigid/semi-flexible RG402 Line 086 cable. With its exceptional structural design, stringent manufacturing standards, and stable performance, it has become a core connection component in high-end fields such as communication base stations, radar systems, aerospace testing, and laboratory precision measurements, providing solid support for RF signal transmission in complex environments.
Core Structure and Compatibility Advantages
The connector features a 90-degree right-angle male design, which retains the connection stability of straight connectors while enabling flexible wiring in confined spaces. It is particularly suitable for scenarios with dense internal device modules and limited wiring space. Its head is equipped with a precision-machined internal thread locking mechanism, combined with a built-in gold-plated center pin, forming a dual guarantee: the self-locking structure of the internal thread can withstand an axial tension of ≥5N, ensuring connection reliability under vibration and impact; the gold-plated center pin (plating thickness ≥2μm) reduces contact resistance and minimizes energy loss during signal transmission.
The interface specifications strictly comply with the IEC 61169-8 standard, achieving millimeter-level precise matching with the RG402 Line 086 semi-rigid/semi-flexible cable. The tinned copper tape shielding layer on the outer layer of the cable can achieve a 360° fully wrapped connection with the outer conductor of the connector, providing a shielding effectiveness of ≥90dB (at 1GHz), effectively isolating external electromagnetic interference (EMI) and RF leakage. It is especially suitable for fields such as military industry and medical care that have extremely high requirements for electromagnetic compatibility (EMC).
Performance Parameters and Application Scenarios
In terms of electrical performance, the impedance of the connector is strictly controlled within the range of 50Ω±1Ω, ensuring perfect matching with the impedance characteristics of the RG402 cable. This controls the Voltage Standing Wave Ratio (VSWR) to below 1.2:1 (in the DC-18GHz frequency band), significantly reducing signal reflection loss. The excellent insertion loss of ≤0.3dB (at 18GHz) ensures the integrity of high-frequency signals during long-distance transmission, and stable signal transmission performance is maintained even in the 60GHz millimeter-wave band.
In terms of mechanical performance, the connector adopts a brass shell (with chrome-plated surface), which has excellent corrosion resistance and mechanical strength, and can withstand ≥500 mating cycles without affecting performance. The operating temperature range covers -55℃ to +125℃, making it suitable for outdoor equipment installation in extreme climate environments, such as plateau base stations and polar scientific research equipment.
Installation Process and Usage Guarantee
The installation process balances professionalism and operational convenience, with supporting special stripping tools (precisely controlling the stripping length to 8.5mm±0.2mm), hexagonal crimping pliers (crimping torque 5-7N·m), and lead-free solder wire (melting point 183℃). The specific steps are as follows:
Use a special stripping tool to remove the outer sheath of the cable (exposing 1.5mm of the shielding layer), strip the shielding layer (exposing 3mm of the inner insulation layer), and cut off the inner insulation layer (exposing 2mm of the inner conductor);
Insert the inner conductor into the welding hole of the connector's center pin, and use a hot air gun for heating and welding (welding temperature controlled at 230-250℃) to ensure no cold solder joints or bubbles in the solder joint;
Fold and fix the cable shielding layer in the outer conductor groove, and use crimping pliers for hexagonal crimping. After crimping, the contact resistance between the shielding layer and the outer conductor is ≤2mΩ;
Put on a Φ4mm polyolefin heat-shrinkable tube (shrinkage ratio 2:1), which forms a sealed protection after heating and shrinking, reaching an IP67 protection level (in the mated state), effectively resisting dust and short-term water immersion (1m water depth/30 minutes).
The product has passed the UL 94 V-0 flame retardant certification. The inner insulation layer is made of polytetrafluoroethylene (PTFE), which has the characteristics of high and low temperature resistance and chemical corrosion resistance, and can be directly used in corrosive environments such as chemical industry and petroleum. Each batch of products undergoes 100% air tightness testing (helium mass spectrometry leak detection, leak rate ≤1×10⁻⁸ Pa·m³/s) and vibration testing (10-2000Hz, 15g acceleration) to ensure long-term stable operation under harsh working conditions.
Choosing the combination of this SMA right-angle male connector with internal thread and pin and the RG402 Line 086 cable not only means obtaining a high-performance RF connection solution, but also enjoying a 5-year warranty service and technical support, including installation guidance, performance testing, and fault diagnosis, providing full-life-cycle reliable protection for your RF system.
