Key Specifications
Type Design:
Standard
Connection Type:
Between Series
Connector 1 Series:
SMA
Connector 1 Gender:
Jack (Female)
Connector 2 Series:
F
Connector 2 Gender:
Plug (Male)
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:
Nickel
Connector 2 Body Material:
Brass
Connector 2 Body Plating:
Nickel
VSWR, Max:
1.25
Impedance 1(Ohm):
50
Impedance 2(Ohm):
75
Description
Impedance Matching Pad, 50Ω SMA Jack (Female) to 75Ω F Plug (Male)
The ROSNOL MP-A25F17A-2G/H3-H33 impedance matching pad provides a precise 50 Ω (SMA) to 75 Ω (F) transition for DC–2 GHz links, specified with VSWR ≤ 1.25 (≥ 19.08 dB) and nominal attenuation 5.7 ± 0.5 dB. Power rating is 0.7 W at 40 °C with linear derating to 0 W at 125 °C. Mechanical data include SMA screw‑lock and F screw‑lock coupling, recommended torques of 0.57 Nm (SMA) and 1.1 Nm (F), coupling test torques up to 1.70 Nm (SMA) and 6.78 Nm (F), and ≥ 500 mating cycles on both sides. Temperature range −40 °C to +85 °C. (Model: MP-A25F17A-2G/H3-H33)Piece-part materials and plating: SMA side—centre contact: phosphor bronze, gold plated with non‑magnetic Ni‑P underplate; body: brass, nickel plated; insulator: PTFE. F side—centre contact: phosphor bronze, gold plated with non‑magnetic Ni‑P underplate; body: brass, nickel plated; insulator: PTFE; coupling nut: brass, nickel plated. This pad is intended for 50 Ω RF instruments and modules interfacing to 75 Ω cable-television/video distribution and broadband networks, also suitable for lab test benches, broadcast headends, and telecom infrastructure requiring quick 50↔75 Ω conversion.
ROSNOL’s precision‑engineered RF adapters deliver reliable performance across a wide range of RF and microwave systems. Designed for high‑frequency signal integrity, ROSNOL adapters offer a cost‑effective alternative to leading European and American brands. All ROSNOL RF components are manufactured in ISO 9001‑certified facilities and fully comply with RoHS and REACH regulations. Customization services for materials, plating, and mechanical design are available.
