Set of 3 SMA adapters, 18 GHz, measurement quality – (m)-(f), (m)-(m), (f)-(f)

Product detailed description

This set of three measurement-grade coaxial SMA adapters – (m)-(f), (m)-(m), and (f)-(f) – is designed for the precise interconnection of RF instruments, cables, and modules in the DC–18 GHz band. With a single set, you can connect two cables, change the connector gender on a device, or extend a measurement feed without introducing significant reflection or attenuation into your measurements. Unlike common low-cost adapters rated up to 3–6 GHz, these adapters feature a guaranteed max SWR of 1.20:1 and an insertion loss of up to 0.25 dB across the entire band up to 18 GHz, making them suitable for NanoVNA, spectrum analysers, and professional measurement equipment.

How it differs from standard adapters:

• Wide bandwidth: guaranteed parameters up to 18 GHz.
• Low reflection and attenuation: max SWR 1.20:1, max insertion loss 0.20 / 0.25 dB.
• Quality contacts: center conductor made of gold-plated beryllium copper maintains elasticity and stable contact resistance.
• Long lifespan: min. 500 connection cycles, PTFE insulator withstands up to +165 °C.
• Two versions: gold-plated for an affordable price, or stainless steel with a hard thread and face, ideal as a permanent "port protector" on the device.

Specifications:

• Type: straight coaxial adapters (RF connectors)
• Connectors: SMA (not RP-SMA)
  • SMA male – SMA female (JK)
  • SMA male – SMA male (JJ)
  • SMA female – SMA female (KK)
• Impedance: 50 Ω
• Frequency range: DC–18 GHz
• SWR: max. 1.20:1
• Insulation resistance: ≥ 5000 MΩ
• Dielectric strength: 1000 V
• Service life: min. 500 mating cycles
• Material:
  • Inner conductor: beryllium bronze, gold-plated
  • Insulator: PTFE
• Operating temperature: −55 °C to +165 °C
• Variants:
  • Gold-plated (QY-SMA-TD): gold-plated brass body; insertion loss max. 0.20 dB; length M-F 22.6 mm, M-M 23.4 mm, F-F 21.8 mm
  • Stainless Steel (QY-SMA-GD): passivated stainless steel body; insertion loss max. 0.25 dB; higher mechanical durability of thread and face; length M-F 25.8 mm, M-M 26.4 mm, F-F 25.0 mm
• Suitable for:
  • NanoVNA 2.8" vector network analyser
  • HTOOL SA8 Spectrum Analyzer and Signal Generator
• Related:
  • SMA (m) – SMA (m) test cable, RG223, 6 GHz
  • SMA Termination 50 Ω, 2 W, DC–18 GHz, SWR ≤ 1.15

Package contents:

• 1× SMA male – SMA female adapter
• 1× SMA male – SMA male adapter
• 1× SMA female – SMA female adapter

Note:

• This product is not a standalone functional unit and may require professional installation.
• Product images are for illustrative purposes only and may sometimes differ from the actual appearance of the item. However, this does not change their basic properties.