SA3R-03 FAIRVIEW | Alldatasheet
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Fairview Microwave carries a broad selection of fixed attenuators with a wide range of attenuation levels, frequency ranges, and power dissipation ranges. Also known as RF pads, RF microwave attenuators lower the amplitude of a signal (or attenuate) a known amount. These attenuator pads can be used in a wide variety of applications including reducing a signal level to protect measurement equipment or other circuitry, extending the range of power meters and amplifiers, and impedance matching circuits by reducing the VSWR seen by adjacent components. RF attenuators can prevent signal overload in amplifiers, receivers and detectors, adjusting the signal level to a range that is optimal. Few RF components are as commonly used as fixed coaxial attenuators, and Fairview Microwave carries one of the largest in-stock varieties and ships them same day. The SA3R-03 is a 3 dB Fixed Attenuator that operates from DC to 3 GHz and is rated to 2 Watts. The versatile coaxial package uses SMA male to reverse polarity SMA female connectors. Electrical Specifications Description Minimum Typical Maximum Units Frequency Range DC 3 GHz Impedance 50 Ohms Nominal Attenuation 3 dB VSWR 1.25:1 Input Power, CW 2 Watts Input Power, Peak 100 Watts Specifications by Frequency Description F1 F2 F3 F4 F5 Units Frequency Range DC to 2 2 to 3 GHz VSWR, Max 1.15:1 1.25:1 Attenuation Accuracy, Typ 0.2 0.3 dB Mechanical Specifications Size Length 0.97 in [24.64 mm] Width/Diameter 0.315 in [8 mm] Height 0 in [0 mm] Weight 0.01058 lbs [4.8 g] Body Material and Plating Brass, Nickel Configuration Design Fixed
The Right Parts, Right Away +1 (866) 839-4711 | sales@fairviewmicrowave.com | fairviewmicrowave.com © 2025 Infinite Electronics, Inc. Fairview Microwave is a registered trademark of Infinite Electronics, Inc. 3 dB Fixed Attenuator SMA Male (Plug) to SMA Reverse Polarity Female (Jack) Up to 3 GHz Rated to 2 Watts, Brass Nickel Body, 1.25 VSWR SA3R-03 Connectors Description Connector 1 Connector 2 Type SMA Male SMA Female Reverse Polarity Hex Size 5/16 inch Body Material and Plating Phosphor Bronze Environmental Specifications Temperature Operating Range -50 to +80 deg C Compliance Certifications (see product page for current document) Plotted and Other Data Notes: Typical Performance Data 3 dB Fixed Attenuator SMA Male (Plug) to SMA Reverse Polarity Female (Jack) Up to 3 GHz Rated to 2 Watts, Brass Nickel Body, 1.25 VSWR from Fairview Microwave is in-stock and available to ship same-day. All of our RF/microwave products are available off-the-shelf from our ISO 9001:2008 certified facilities in Lewisville, Texas. Fairview Microwave is RF on-demand. For additional information on this product, please click the following link: 3 dB Fixed Attenuator SMA Male (Plug) to SMA Reverse Polarity Female (Jack) Up to 3 GHz Rated to 2 Watts, Brass Nickel Body, 1.25 VSWR SA3R-03 URL: https://www.fairviewmicrowave.com/3db-fixed-attenuator-sma-male-sma-female-2-watts-sa3r-03-p.aspx The information contained within this document is accurate to the best of our knowledge and representative of the part described herein. It may be necessary to make modifications to the part and/or the documentation of the part in order to impliment improvements. Fairview Microwave reserves the right to make such changes as required. Unless otherwise stated, all specifications are nominal. Fairview Microwave does not make any representation or warranty regarding the suitability of the part described herein for any particular purpose, and Fairview Microwave does not assume liability arising out of the use of any part or document.