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Small metallic BNC adapter with knurled barrel, female to male, silver finish

Pomona Electronics

Pomona Electronics 4289 BNC Female-Male Adapter 335 Vrms 50 Ohm 12.4 GHz

SKU CH-HWMT-B0F6F

BNC female-to-male adapter rated 335 Vrms, 50 ohm impedance and DC to 12.4 GHz bandwidth with PTFE insulation

  • Product typeMechanical Connectors
  • BNC female-to-male adapter connects coaxial cables
  • 335 Vrms rating handles high-voltage RF signals
  • DC to 12.4 GHz bandwidth supports microwave applications
  • 50 ohm impedance matches standard RF systems
  • PTFE insulation operates from -65 to 165 °C

BNC Female-to-Male Adapter 12.4 GHz

The Pomona Electronics 4289 adapter connects a BNC female port to a BNC male plug across a DC to 12.4 GHz range. It presents a 50 ohm impedance and handles up to 335 Vrms for RF and test applications.

Beryllium Copper Body PTFE Insulation

The body uses beryllium copper with brass and beryllium copper contacts for durable conductivity. PTFE insulation supports an operating range from -65 to 165 degrees C, suiting bench and field environments.

Replaces Worn or Mismatched BNC Links

This adapter upgrades damaged or gender-mismatched coaxial connections without changing cable assemblies. The jump is worth it when a quick, high-frequency gender change is needed at 50 ohm impedance.

How it compares

Measured against everything we stock in Wire Connectors & Cable Ties, at today’s prices. Recalculated every night.

Price $15.99
Pricier than about 55% of the 1,040 comparable items (median $13.99).

Specifications

Product
Brand namePOMONA
Product typeMechanical Connectors

Questions about this item

What frequency range does the BNC adapter support up to 12.4 GHz?

The adapter operates from DC to 12.4 GHz with a 50 ohm impedance, maintaining signal integrity across that full range for RF and microwave applications.

What are the body and contact materials of the 4289 BNC adapter?

The body is beryllium copper and the contacts are brass and beryllium copper, with PTFE insulation rated from -65 to 165 degrees C for reliable mechanical and electrical performance.

How do you correctly install a BNC female-to-male adapter without damaging the center pin?

Align the bayonet lugs, push straight on, then twist clockwise until the lugs lock; forcing it at an angle bends the center contact and degrades the 50 ohm match.

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