Skip to main content
Log in
282121-75 — Amphenol product photo
Amphenol

Amphenol RF 282121-75, 1.0/2.3 Receptacle, 75 Ohm, 4 GHz

MPN282121-75
Active

Amphenol RF 1.0/2.3 receptacle, 75 Ohm, 4 GHz, 250 V, panel mount through-hole, gold-plated brass body, beryllium copper centre contact, 500 mating cycles.

$11.5000Ref. price · indicative, final on quote
282121-75 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.
  • 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.
How we verify every order →

Specifications

282121-75 Technical Specifications
ParameterValue
Mounting typePanel Mount, Through Hole
Connector type1.0/2.3
Fastening typePush-Pull
Voltage rating250 V
Frequency - max4 GHz
Mounting featureBulkhead - Front Side Nut
Operating temperature-65°C~165°C
Body materialBrass
Housing colorGold
Dielectric materialPolytetrafluoroethylene (PTFE)
Center contact materialBeryllium Copper
PackageBulk
Includes2 pcs - 1 Connector, 1 Nut
Impedance75Ohm
Body finishGold
Mating cycles500
Number of ports1
Shield terminationSolder
Contact terminationSolder
Center contact platingGold

Product details

75-Ohm 1.0/2.3 Receptacle, 4 GHz, Bulkhead-Mount

The 282121-75: The 75-ohm impedance is the defining parameter here — it matches 75-ohm cable and system impedance, common in broadcast video, telecom, and test equipment where a 50-ohm path would introduce a mismatch.

Panel Mount with Hardware Included

Mounts through a panel hole with a bulkhead — front side nut — and the package includes the connector and nut (2 pieces total). The through-hole solder termination for the centre contact and shield means the signal and ground paths are soldered to the PCB or cable centre conductor and braid. The push-pull fastening type allows quick mate/demate without tools, but the bulkhead nut secures the connector body to the panel so the push-pull action doesn't stress the solder joints.

Temperature Range and Dielectric

The 250 V rating across the PTFE is conservative for the material; the real voltage limit in a 75-ohm system is usually set by the cable or the air gap at the interface, not the connector itself.

Mating Half and System Compatibility

Mates with a male 1.0/2.3 plug, push-pull fastening. The 1.0/2.3 interface is a defined standard for compact 75-ohm coaxial connectors — look for a male plug with the same 75-ohm impedance and 1.0/2.3 style.

Frequently asked questions

What is the mating connector for 282121-75?

The mating connector is a male 1.0/2.3 plug with push-pull fastening, also 75-ohm impedance. Amphenol RF offers male plugs in the same 1.0/2.3 series — look for an order code like 282133-75 (which is a receptacle, not a plug) or search for a male 1.0/2.3 plug with 75-ohm rating.