Key Specifications
Type Design:
Precision
Connection Type:
Between Series
Connector 1 Series:
Precision N
Connector 1 Gender:
Jack (Female)
Connector 2 Series:
SMA
Connector 2 Gender:
Plug (Male)
Body Style:
Straight
Impedance (Ohm):
50
Panel Mount:
None
Connector 1 Connection Method:
Threaded (Screw-lock)
Connector 2 Connection Method:
Threaded (Screw-lock)
Frequency, Max (GHz):
18
Connector 1 Body Material:
Brass
Connector 1 Body Plating:
Copper-Tin-Zinc Alloy
Connector 2 Body Material:
Brass
Connector 2 Body Plating:
Copper-Tin-Zinc Alloy
VSWR, Max:
1.15
Description
SMA Plug (Male) to Precision N Jack (Female) | Straight Adapter | Screw-lock | Brass Body
The ROSNOL AD-A1PCN25B/944-94 adapter delivers high-performance RF connectivity with 50 Ω impedance and DC–18 GHz frequency range. It achieves VSWR ≤ 1.15 (≥ 23.1 dB return loss), insertion loss ≤ 0.05 × √F (GHz) dB, and insulation resistance ≥ 5 GΩ. Contact resistance is ≤ 3 mΩ (SMA) and ≤ 1 mΩ (N), while outer contact resistance is ≤ 2 mΩ and ≤ 0.25 mΩ respectively. Rated for 1000 V rms test voltage and 480 V rms working voltage, it supports power handling up to 200 W at 2 GHz with RF leakage ≥ 100 dB up to 1 GHz. Mechanical integrity includes screw-lock coupling, axial captivation ≥ 28 N, torque range 0.80–1.10 Nm (SMA) and 0.70–1.10 Nm (N), and minimum 500 mating cycles.The SMA and Precision N bodies are brass with copper-tin-zinc alloy for enhanced durability. Center contacts use beryllium copper with 3 μinch gold plating over 80 μinch non-magnetic nickel-phosphorus underplating. Insulators are PTFE for both ends, complemented by a silicone rubber gasket for environmental sealing. Dimensions include overall length 31.12 mm [1.225 in], hex sizes 8 mm [.315 in] and 14 mm [.551 in], and thread 5/8-24 UNEF-2A.
ROSNOL’s precision-engineered RF adapters deliver reliable performance across a wide range of RF and microwave systems. Designed to meet the stringent demands of high-frequency signal transmission, ROSNOL adapters offer a cost-effective alternative to products from leading European and American brands. All ROSNOL RF components are manufactured in ISO 9001-certified facilities and fully comply with RoHS and REACH regulations, ensuring global environmental and safety standards. Customization services for materials, plating, and mechanical design are available to support specialized interconnect requirements.