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221185-3 — TE Connectivity AMP Connectors product photo
TE Connectivity AMP Connectors

TE 221185-3 BNC Plug, 75 Ohm, Crimp

MPN221185-3
Obsolete

TE Connectivity 221185-3 BNC plug, male pin, 75 Ohm impedance, crimp termination, 500 V, 2 GHz max frequency, nickel body, gold-plated center contact, for Belden 8218 cable.

$46.7000Ref. price · indicative, final on quote
221185-3 datasheet
StockContact for availability
MOQ1 pcs
  • New & original stockTraceable channels only — no mixed lots, no re-taped reels.
  • Factory packaging where availableSealed reels, trays and bags; cut quantities always stated on the quote.
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Specifications

221185-3 Technical Specifications
ParameterValue
Mounting typeFree Hanging (In-Line)
Connector typePlug, Male Pin
Fastening typeBayonet Lock
Voltage rating500 V
Frequency - max2 GHz
Cable groupBelden 8218
Operating temperature-55°C ~ 85°C
Housing colorSilver
Dielectric materialPolyethylene (PE)
Center contact materialBrass
PackageBulk
Impedance75 Ohms
Body finishNickel
Mating cycles500
Insertion loss0.15dB
Number of ports1
Shield terminationCrimp
Contact terminationCrimp
Center contact platingGold

Product details

75 Ohm BNC Plug — What This Connector Is

The center contact is brass with gold plating — good for the 500 mating cycle rating and corrosion resistance in field-installed runs. This is a single-port connector, impedance-matched to 75 Ohms, with a max frequency of 2 GHz and insertion loss of 0.15 dB. The 75 Ohm impedance and 2 GHz ceiling match video and telecom signal paths.

The 75 Ohm impedance matches video and telecom signal paths. The 2 GHz max frequency covers HD-SDI rates. The bayonet lock gives a positive mate with a quarter-turn; the 500-cycle rating means it'll hold up to regular reconnection in patch panels or field test points.

Obsolete — Sourcing Reality

For BOM lines that specify this exact order code, the sourcing path is the independent surplus and broker market. There is no official TE cross-reference or direct successor part number on record for this specific 75 Ohm, Belden 8218-crimped variant.

Compatibility and Cross-Reference

The 221185-3 is specifically listed for Belden 8218 cable — a 75 Ohm RG-59/U type coax commonly used in CCTV and baseband video. The crimp dimensions and dielectric fit are matched to that cable's jacket and core diameters.

Frequently asked questions

Where can I buy the 221185-3 BNC connector?

The 221185-3 is obsolete and not available through standard distribution stock. We source it through the independent surplus and broker channel — submit an RFQ with your target quantity and we will confirm current availability and pricing at quote time.

Is the 221185-3 compatible with Belden 8218 cable?

Yes, the 221185-3 is specifically listed for Belden 8218 cable. The crimp termination and dielectric fit are designed for that 75 Ohm RG-59/U type coax used in CCTV and baseband video applications.

What is a replacement for 221185-3?

There is no official direct replacement from TE Connectivity for this exact 75 Ohm, Belden 8218-crimped BNC plug. The closest functional equivalent would be another 75 Ohm BNC plug with crimp termination, gold center contact, and bayonet lock designed for Belden 8218 — but verify the form factor and dimensions against your original before committing.