The Inmet 18N25W is a coaxial fixed attenuator engineered for RF and microwave signal conditioning across DC to 18 GHz. Delivering 25 dB of attenuation with SMA male-to-female connectors, this 50 Ohm component provides stable impedance matching and controlled signal reduction in test and deployment systems. Rated for 2 Watts maximum average power with a 1.40:1 maximum VSWR across its entire frequency range, the 18N25W maintains predictable performance in signal level management applications.
## Technical Specifications
• **Attenuation:** 25 dB
• **Frequency Range:** DC to 18 GHz
• **Impedance:** 50 Ohms
• **Maximum Average Power:** 2 Watts
• **VSWR (DC to 18 GHz):** 1.40:1 maximum
• **Connector Type:** SMA Male to Female
## Key Features
• Flat attenuation across full DC to 18 GHz band
• Compact coaxial construction for system integration
• Predictable impedance matching (50 Ohm design)
• Low VSWR ensures minimal reflections
• Rated for continuous 2 Watt operation
## Typical Applications
• RF test and measurement setups requiring signal level control
• Microwave system gain flattening
• Power reduction in signal chains
• Source protection and signal conditioning
• Laboratory and field RF systems to 18 GHz
## Compatibility & Integration
The SMA connector interface mates with standard RF instrumentation and components operating at microwave frequencies. The 50 Ohm characteristic impedance aligns with industry-standard test equipment and passive components. Manufactured by Spectrum Control Inc. (Inmet brand) to ISO 9001-2015 certification.
