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TE Connectivity AMP Connectors 221185-5 — RF / Coaxial Connectors

TE Connectivity 221185-5 BNC Plug, 75 Ohm, 2 GHz, Obsolete

MPN221185-5
Obsolete

TE Connectivity BNC plug, 75 Ohm, plug male pin, crimp termination, bayonet lock, 500 V, 2 GHz, 0.15 dB insertion loss, nickel body, gold center contact, -55°C~85°C, bulk.

$8.5500Ref. price · indicative, final on quote
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for stock & sourcing questions
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent supplier — new & surplus connector stock· Listing updated Jul 2026

Specifications

221185-5 key specifications
ParameterValue
MountingFree Hanging (In-Line)
Connector typePlug, Male Pin
Fastening typeBayonet Lock
Voltage rating500 V
Frequency - max2 GHz
Cable groupBelden 8281, 8281F, 9231
Operating temperature-55°C~85°C
Body materialZinc
Housing colorSilver
Dielectric materialPolyethylene (PE)
Center contact materialBrass
PackageBulk

All specifications

221185-5 additional specifications
ParameterValue
Impedance75Ohm
Body finishNickel
Mating cycles500
Insertion loss0.15dB
Number of ports1
Shield terminationCrimp
Contact terminationCrimp
Center contact platingGold

Product details

The plug mates with any standard 75 Ohm BNC jack via the bayonet lock and is rated for 500 mating cycles, backed by gold plating on the brass center contact. The connector is specified for Belden 8281, 8281F, and 9231 cable groups — these are precision 75 Ohm coax cables with a solid or foam polyethylene dielectric. The crimp termination on both the center contact and the shield (shield termination is also crimp) produces a gas-tight, repeatable assembly when paired with the correct crimp tool and die set. Electrical performance is clean: 0.15 dB insertion loss up to 2 GHz, with a voltage rating of 500 V. The zinc body with nickel finish provides RF shielding and corrosion resistance in studio or field environments.

The 500 mating cycles are driven by the gold-plated center contact. Gold over brass resists corrosion and maintains low contact resistance through repeated connect/disconnect cycles in field-serviceable installations. For a permanent install that mates once, the cycle life is irrelevant — but for test points or portable camera cables, 500 cycles is a solid service life before replacement. Cable compatibility is limited to the listed Belden types (8281, 8281F, 9231) because the crimp dimensions and dielectric diameter are matched to those specific cables. Using a different 75 Ohm coax with a different jacket OD or dielectric diameter will not produce a reliable crimp or maintain the 75 Ohm impedance through the termination.

Frequently asked questions

Where can I buy the 221185-5 available via RFQ confirmation?

The 221185-5 is obsolete and no longer in factory production. It is sourced through independent distribution against an RFQ — current availability and pricing are confirmed at quote time. Submit your BOM quantity for a same-day sourcing check.

What is the replacement for 221185-5?

There is no manufacturer-declared direct replacement for the 221185-5. For a 75 Ohm BNC plug with similar specs, review current TE BNC offerings in the 75 Ohm impedance class — confirm the cable group compatibility and crimp tooling before substituting.

What cable group is compatible with 221185-5?

The 221185-5 is specified for Belden 8281, 8281F, and 9231 cables. These are precision 75 Ohm coax cables; using a different cable may not produce a reliable crimp or maintain the 75 Ohm impedance through the termination.

What is the insertion loss of 221185-5?

The insertion loss is 0.15 dB, measured up to the 2 GHz maximum frequency. This is a low-loss figure for a BNC plug — suitable for video distribution where signal integrity matters over multiple mated pairs.