Key Specifications
Type Design:
Standard
Connection Type:
Between Series
Connector 1 Series:
N
Connector 1 Gender:
Plug (Male)
Connector 2 Series:
SMA
Connector 2 Gender:
Jack (Female)
Body Style:
Straight
Connector 1 Connection Method:
Threaded (Screw-lock)
Connector 2 Connection Method:
Threaded (Screw-lock)
Frequency, Max (GHz):
2.0
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:
1.25
Impedance 1(Ohm):
75
Impedance 2(Ohm):
50
Description
Impedance Matching Pad, 50Ω SMA Jack (Female) to 75Ω N Plug (Male)
The ROSNOL MP-A25N17A-2G/H4-H44 provides a controlled 50 Ω to 75 Ω transition from DC to 2 GHz with VSWR ≤ 1.25 (≥19.08 dB), insertion loss ≤5.7 ± 0.5 dB, and a 0.7 W power rating at 40 °C with linear derating to 0 W at 125 °C. Mechanical data include SMA and N screw‑lock coupling, ≥500 mating cycles, test torque 1.70 Nm max, and recommended torques of 0.57 Nm (SMA) and 1.0 Nm (N). Operating temperature −40 °C to +85 °C.Piece-part materials: SMA side—centre contact phosphor bronze with gold/Ni‑P plating; body brass with copper‑tin‑zinc alloy plating; insulator PTFE. N side—centre contact phosphor bronze with gold/Ni‑P plating; body brass with copper‑tin‑zinc alloy plating; insulator PTFE; gasket silicone rubber; coupling nut brass with copper‑tin‑zinc alloy plating. Suitable for RF measurement systems, telecom modules, broadband distribution, and CATV/IF networks requiring consistent 50↔75 Ω conversion.
ROSNOL’s RF components are manufactured in ISO 9001‑certified facilities and fully comply with RoHS and REACH. They deliver high performance at competitive pricing, serving as reliable alternatives to major European and American brands. Custom options for materials, plating, and mechanical design are available.
