Dust Covers
Connector Caps Definition
Connector Dust Covers are used to protect the pins of connectors that are exposed when having no cable attached. Dust covers may be produced in either Plastic or Metal. Plastic dust covers are much cheaper than there more expensive metal counter-parts. Metal dust covers may also be made to shield against EMI issues. In addition many styles of metal dust covers also come with an attached chain which may be secured to the chassis. Using the chain insures that the dust cover is not dropped or lost when disconnected for cable attachment.
Either metal or plastic dust covers come in almost any connector shape, including D-Sub or circular connectors. Circular caps will press fit on in the case of plastic or screw on in the case of metal types. While D-Sub miniature types will press fit on with either plastic or metal caps, but the metal will also use the locking screws on either side of the D-connector. Environmental Protection Rating.
Alternate terms; Protective Covers, Dummy Stowage Receptacles
Dust Cover Manufacturers
Anderson Power Products {Connector Dust Covers}
Caplugs {Plastic Caps and Plugs for connectors}
S.M. Electronics {Metal Dust Caps, SMA, TNC, N, 2.4mm, SSMC, Male/Female}
Sys Concept Inc. {Metal Dust Cap w/ Chain}
StockCap {Plastic Dust Caps, Hoods}
Trompeter {RFI Connector Caps - Terminations}
Unitrack Industries {Metal Dust Caps w/chains}
Next section Fuse Holders; in Chassis Design
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Connector Cap Details
Dust Cap Chain; Bead chain, Safety Chain, Rope chain
Common chain lengths; 2.25 inches, 3.25 inches, 3.75 inches
Common Commercial lengths; 3, 5 and 6 inches
Chassis Attachment point, Eyelet ID; 0.144 inches, .17 inches, .281 inches, .5 inches, .52 inches .635 inches. End-Ring Assembly
BNC Connector Cap, Metal Cover
Specifications and Standards
MIL-C-39012/25 Connectors, Coaxial, Radio frequency (Hardware for Radio frequency Coaxial Connectors), MIL-PRF-39012
MIL-W-83420 Wire Rope, Flexible, for Aircraft Control
MIL-PRF-28876/15E; CONNECTORS, FIBER OPTIC, CIRCULAR, RECEPTACLE STYLE,
MULTIPLE REMOVABLE TERMINI, DUST COVER,
SCREW THREADS, ENVIRONMENT RESISTING
Related Topic: EMI Issues with a Chassis
How To Specify a Equipment Chassis; Chassis Design Index page
