Key Specifications
Type Design:
Standard
Connection Type:
In-Series
Connector 1 Series:
SMA
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):
1.0
Connector 1 Body Material:
Stainless Steel
Connector 1 Body Plating:
Passivated
Connector 2 Body Material:
Stainless Steel
Connector 2 Body Plating:
Passivated
VSWR, Max:
1.15
Impedance 1(Ohm):
50
Impedance 2(Ohm):
75
Description
SMA 50 Ω Plug to SMA 75 Ω Jack Impedance Matching Pad | DC to 1 GHz | Stainless Steel Body
The ROSNOL MP-A15A27A-1G/9XX-9X impedance matching pad is designed to provide accurate impedance transition between SMA 50 Ω plug (male) and SMA 75 Ω jack (female) interfaces. Supporting a frequency range from DC to 1 GHz, this model delivers stable RF performance with a VSWR of ≤ 1.1 on the 50 Ω side (return loss ≥ 26.44 dB) and ≤ 1.15 on the 75 Ω side (return loss ≥ 23.13 dB). Insertion loss is specified at ≤ 5.7 dB in both transmission directions. The insulation resistance is rated at ≥ 5 GΩ. Average power handling reaches 0.7 W at 40 °C, with linear derating to 0 W at 125 °C for reliable thermal performance.The MP-A15A27A-1G/9XX-9X features a compact and robust mechanical structure optimized for secure mating. The center contact is manufactured from beryllium copper with gold plating over a non-magnetic nickel-phosphorus underplating. The body and coupling nut are constructed from passivated stainless steel to ensure mechanical durability and corrosion resistance. PTFE is used as the insulator material to maintain stable dielectric characteristics, while a silicone rubber gasket enhances mechanical compliance. The screw-lock coupling mechanism supports ≥ 500 mating cycles, with an axial center contact captivation strength of ≥ 27 N. The allowable test torque is ≤ 1.7 Nm, with a recommended installation torque range of 0.8 Nm to 1.1 Nm.
ROSNOL RF components are precision-manufactured in ISO 9001-certified facilities and fully comply with RoHS and REACH regulations. ROSNOL impedance matching pads are engineered to deliver consistent quality, dependable RF performance, and competitive pricing, making them an ideal alternative to products offered by leading European and American brands. Comprehensive customization services, including mechanical design, material options, and plating configurations, are available to support specialized RF and microwave interconnection requirements.
