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2-5221128-7 — TE Connectivity AMP Connectors product photo

TE BNC Plug 2-5221128-7, 50 Ohm, 4 GHz, Obsolete

MPN2-5221128-7
Obsolete

TE Connectivity BNC plug, male pin, 50 Ohm, 4 GHz, 500 V, crimp termination, nickel body, gold center contact, bulk package.

$6.7600Ref. price · indicative, final on quote
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.
  • Photo-verified countsEvery line counted and photographed before the box closes.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

2-5221128-7 Technical Specifications
ParameterValue
Mounting typeFree Hanging (In-Line)
Connector typePlug, Male Pin
Fastening typeBayonet Lock
Voltage rating500 V
Frequency - max4 GHz
Cable groupRG-141, Belden 89907, 9907
Operating temperature-55°C ~ 85°C
Body materialZinc
Housing colorSilver
Dielectric materialPolyethylene (PE)
Center contact materialBrass
PackageBulk
Includes3 pcs - 1 Connector, 1 Contact, 1 Ferrule
Impedance50 Ohms
Body finishNickel
Mating cycles500
Insertion loss0.2dB
Number of ports1
Shield terminationCrimp
Contact terminationCrimp
Center contact platingGold

Product details

BNC Plug, 50 Ohm, Crimp Termination — Kit Includes Connector, Contact, Ferrule

It's a crimp-termination connector — the shield crimps over the cable braid, and the center contact crimps onto the signal conductor. The kit includes the connector body, one gold-plated brass center contact, and one ferrule, all in a single bulk package.

Cable Groups and Termination Fit

The ferrule and contact are sized for RG-141 and Belden 89907 / 9907 cable groups — the same 0.195-inch diameter class. The crimp tooling for the center contact and the hex die for the ferrule follow standard BNC crimp profiles; no special adapter needed. The shield termination is crimp, not clamp or solder, so the braid gets a gas-tight connection that holds up to vibration.

There is no official successor listed. If the application can tolerate a parametric alternative, a standard 50 Ohm BNC plug from the same or equivalent series (e.g., a TE 5221128-x variant or a generic Amphenol BNC) may fit, but that cross-reference must be verified against the cable group and center contact dimensions.

500 Mating Cycles — Field-Service Duty

The nickel body finish also holds up to repeated handling and field reconnection — this is not a one-crimp-and-forget connector.

Frequently asked questions

What cable groups does this BNC plug work with?

It is designed for RG-141 and Belden 89907 / 9907 cable groups. The ferrule and center contact are sized for that 0.195-inch diameter class.

What is the maximum frequency rating?

Rated to 4 GHz with 50 Ohm impedance and 0.2 dB insertion loss. That covers most test equipment and telecom signal paths up to the low microwave band.

Where can I buy 2-5221128-7?

This part is obsolete and sourced to order. Availability and pricing are confirmed at quote time against your RFQ.