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The 2V2 coaxial d connector belongs to the hybrid RF D-SUB series. It integrates 2 independent coaxial RF contact pins within a standard D-SUB metal shell, combining high-frequency RF transmission, integrated shielding, and standardized D-SUB mounting structure into one unit. It serves as the core interconnection component for mixed high/low-frequency transmission in compact equipment. Distinct from ordinary high-current 2V2 power d sub connector, the 2V2 adopts a coaxial impedance-matched structure, offering 50Ω/75Ω standard RF impedance while supporting both RF signal and auxiliary power transmission. It widely addresses multi-line integration challenges in industrial control, communications, medical, and test equipment.
II. Core Structure & Specification Classification
1. Structural Design
The unit employs a standard E-type D-SUB metal shell with an internal PBT flame-retardant insert isolating the two coaxial terminals. Each terminal features a complete coaxial shielding structure—the inner pin transmits RF signals while the outer layer provides ground shielding, effectively eliminating signal crosstalk. Standard mounting holes are on both sides of the shell, compatible with 4-40UNC locking screws for secure engagement and vibration-proof locking.
2. Main Mounting Configurations
PCB Straight Type: Straight pins with fish-eye clinching, suitable for through-hole soldering on mainboards, offering high mounting strength for embedded PCB applications.
PCB Right-Angle Type: 90° bent pins for side exit, saving vertical space—ideal for dense rack cabling.
Solder Type: Rear-exit solder cups for external RF cable harness assembly.
Waterproof Type: Equipped with sealing gasket, achieving IP67 protection—suitable for outdoor, automotive, and high-humidity panel-mount applications.
3. Male/Female Mating
Complete male plug and female receptacle sets are available. Male pins use turned solid gold-plated coaxial contacts; female sockets feature beryllium-copper elastic contacts, maintaining stable connection after 1,000 mating cycles.
III. Key Electrical & Material Specifications
Electrical Performance
1. Characteristic Impedance: 50Ω (RF communications) / 75Ω (video & broadcast equipment) selectable.
2. Rated Voltage: 250V DC; Withstand Voltage: 1000V RMS.
3. Rated Current per Contact: 5A (RF version); up to 40A for high-power variants.
4. Contact Resistance: ≤15mΩ; Insulation Resistance: ≥2000MΩ (tested at 500V DC).
5. Operating Frequency: DC ~ 2GHz (standard); customizable up to 4GHz with low VSWR and minimal signal loss.
Material Configuration
Coaxial Contacts: Brass substrate, nickel underplating, with thick gold plating on contact surfaces for oxidation and corrosion resistance.
Insulator Insert: PBT + fiberglass, UL94-V0 flame retardant, resistant to high/low temperature deformation.
Shell: SPCC cold-rolled steel with nickel plating, providing full EMI shielding for effective electromagnetic interference suppression.
Waterproof Version: Silicone sealing gasket for dust/water and oil resistance.
Environmental Ratings
Operating Temperature Range: -55℃ ~ +105℃ (standard); waterproof version supports -55℃ ~ +125℃.
Withstands 10~55Hz vibration, 12-hour salt spray testing, and 96-hour stable operation in high-humidity environments—suitable for demanding industrial conditions.
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D Sub Waterproof Connector
