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中文简体BNC Connectors Protective cap Manufacturer
Product Overview
BNC Protective Caps are passive accessories engineered to shield connector interfaces from contamination, moisture, mechanical damage, and electrostatic discharge during storage, transit, and periods of non-use. In RF systems, even minor contamination on the mating face—dust, metal filings, moisture—can measurably degrade insertion loss and VSWR, making proper interface protection an operational necessity rather than an afterthought.
Jingcheng's protective cap range covers both plug and jack (receptacle) interfaces in the BNC series, with cap body materials and retention designs selected for specific application environments. Shipping caps for connector protection during logistics, as well as port caps that remain on unused panel receptacles during equipment operation, are both available.
Key Features
Precision-molded polymer bodies (typically polyethylene or polyamide) with dimensional tolerances matched to BNC plug and jack interface geometries, ensuring reliable retention without deformation of connector contacts.
Available in standard bayonet-retention style (snaps onto jack outer conductor) and threaded retention style for environments with vibration or accidental dislodgement risk.
Color-coded options (red, blue, black, yellow, white) enable port identification systems on multi-port panels, reducing technician error during installation and maintenance.
Static-dissipative material variants available for ESD-sensitive RF assembly environments.
Lanyard-attached caps prevent loss in field maintenance scenarios where individual caps are easily misplaced.
Metal (aluminum or brass) cap options available where polymer caps are insufficient—for example, high-temperature storage or chemical-exposure environments.
Competitive Advantages
Single-source procurement: purchasing protective caps from the same factory as the connectors themselves eliminates interface compatibility concerns and simplifies supplier qualification.
Custom branding: caps can be molded or printed with customer logos or part numbers for OEM product differentiation at minimal incremental cost on volume orders.
Bulk packaging in anti-static trays or tape-and-reel available for automated assembly line consumption, reducing handling time in connector sub-assembly operations.
Typical Applications
Connector protection during storage and international shipping of connector assemblies and cable harnesses
Panel port caps on unused BNC receptacles in rack-mounted equipment
In-field maintenance kits where caps protect exposed connectors during module swaps
Military and aerospace connector protection per storage and handling specifications
FAQ
Q: Are the protective caps compatible with all BNC receptacle sizes from different manufacturers?
A: Our caps are dimensioned to the IEC 169-8 BNC interface standard, which ensures compatibility with all standard-compliant BNC jacks regardless of manufacturer. Non-standard or undersized interfaces may require dimensional verification; please share the mating connector drawing if in doubt.
Q: Can we order caps in a specific color to match our company's color-coding system?
A: Standard colors include red, blue, black, yellow, and white, available from stock for volume orders. Custom colors are achievable with a minimum order quantity; tooling cost is absorbed above a certain volume—contact sales for specifics.
Q: Do you offer caps with IP-rated sealing for outdoor-stored equipment?
A: Yes. Versions with EPDM or silicone sealing lips provide an additional moisture barrier for outdoor or marine storage environments. These are offered as non-stock specials with a 3–4 week lead time.
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Temperature Range
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-55～+155℃ (PE Cable -40～+85℃)
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Impedance
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50Ω, 75Ω
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Frequency Range
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DC～4GHz
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Insulation Resistance
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≥5000MΩ
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Insertion Loss
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≤0.20 dB/1GHz
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VSWR
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Straight ≤1.22/3GHz Right angle ≤1.30/3GHz
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Durability(mating)
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≥500 (cycles)
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