Telegärtner J01021A0217 N Female to N Female Coupler Adapter, Straight, 50 Ohm

RF technicians and network installers use the Telegärtner J01021A0217 N coupler to join two N male cables in antenna systems, test setups, and base station infrastructure. The straight inline adapter provides a reliable 50-ohm connection with low insertion loss and stable VSWR across DC to 11 GHz.

Key specifications

• Connector series: N
• Connector type: Coupler / Adapter
• Gender: Jack (female) to Jack (female)
• Body orientation: Straight
• Impedance: 50 Ω
• Frequency range: DC - 11 GHz
• VSWR (DC-6 GHz): ≤ 1.05
• VSWR (6-11 GHz): ≤ 1.15
• Insertion loss at 6 GHz: ≤ 0.05 dB
• Dielectric withstanding voltage: 2.5 kVeff
• Insulation resistance: ≥ 5 GΩ
• Center contact resistance: ≤ 1.0 mΩ
• Outer contact resistance: ≤ 0.25 mΩ
• Operating temperature: -65 °C to +165 °C
• Mating cycles: ≥ 500
• Body material: Brass, white bronze plating
• Center contact: Brass, gold plated
• Insulator: PTFE

Why choose it

Precision-machined brass construction with white bronze and gold plating ensures low contact resistance and long-term durability. The PTFE insulator maintains stable impedance over a wide temperature range, making it suitable for demanding RF environments.

Ideal use cases

• Joining N-type coaxial cables in antenna feeder lines
• Test and measurement setups requiring a female-to-female N adapter
• Base station and broadcast infrastructure interconnections

Good to know

The coupler is a straight inline adapter with N female interfaces on both ends. It is designed for 50-ohm systems and operates from DC to 11 GHz with excellent VSWR performance. The white bronze body plating offers corrosion resistance and solderability.