SA4S25-02 FAIRVIEW | Alldatasheet

Document overview

  • Manufacturer or author: Provided By alldatasheet.com(free datasheet download site)
  • PDF pages: 4

Technical content

Features

  • Bidirectional
  • DC to 4 GHz Frequency Range
  • Attenuation 2±0.5 dB
  • Max Power 25 Watts (CW)
  • VSWR < 1.2:1

Applications

  • Instrumentation
  • Precision measurements
  • Prototyping and characterization
  • Production systems

Description

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 SA4S25-02 is a 2 dB Fixed Attenuator that operates from DC to 4 GHz and is rated to 25 Watts. The versatile coaxial package uses SMA male to SMA female connectors. The Black Anodized Aluminum Heatsink body allows for efficient heat dissipation under high power usage conditions. Electrical Specifications Description Minimum Typical Maximum Units Frequency Range DC 4 GHz Impedance 50 Ohms Nominal Attenuation 2 dB Attenuation Accuracy 0.5 dB VSWR 1.2:1 Input Power, CW 25 Watts rated at +25°C, derated linearly to 2.5W at +125°C Input Power, Peak 5 kWatts 5µs pulse, 0.25% duty cycle Electrical Specification Notes: Values at +25°C, sea level. Mechanical Specifications Size Length 2.75 in [69.85 mm] Width/Diameter 1.5 in [38.1 mm] Height 1.46 in [37.08 mm] Weight 0.288 lbs [130.63 g] Body Material and Plating Black Anodized Aluminum Heatsink

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. 2 dB Fixed Attenuator SMA Male (Plug) to SMA Female (Jack) Up to 4 GHz Rated to 25 Watts, Heatsink Body, 1.2 VSWR SA4S25-02 Configuration Design Fixed, Bidirectional Package Style Connectorized Module Connectors Description Connector 1 Connector 2 Type SMA Male SMA Female Connector Specification MIL-STD-348A MIL-STD-348A Contact Material and Plating Beryllium Copper, Gold Beryllium Copper, Gold Body Material and Plating Passivated Stainless Steel Passivated Stainless Steel Environmental Specifications Temperature Operating Range -55 to +125 deg C Compliance Certifications (see product page for current document) Plotted and Other Data Notes: Typical Performance Data

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. 2 dB Fixed Attenuator SMA Male (Plug) to SMA Female (Jack) Up to 4 GHz Rated to 25 Watts, Heatsink Body, 1.2 VSWR SA4S25-02 2 dB Fixed Attenuator SMA Male (Plug) to SMA Female (Jack) Up to 4 GHz Rated to 25 Watts, Heatsink Body, 1.2 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: 2 dB Fixed Attenuator SMA Male (Plug) to SMA Female (Jack) Up to 4 GHz Rated to 25 Watts, Heatsink Body, 1.2 VSWR SA4S25-02 URL: https://www.fairviewmicrowave.com/2db-fixed-attenuator-sma-male-sma-female-25-watts-sa4s25-02-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.

+1 (866) 839-4711 | sales@fairviewmicrowave.com | fairviewmicrowave.com © 2025 Infinite Electronics, Inc. Fairview Microwave is a registered trademark of Infinite Electronics, Inc. SA4S25-02 TITLE NOTES: 1. UNLESS OTHERWISE SPECIFIED ALL DIMENSIONS ARE NOMINAL. 2. ALL SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE AT ANY TIME. 3. DIMENSIONS ARE IN INCHES [mm]. CAD FILE 020615 SCALE N/A SIZE A 5568 FAIRVIEW MICROWAVE INC. ALLEN, TX 75013 WWW.FAIRVIEWMICROWAVE.COM DWG NO CAGE CODE 3FKR5 SHEET 1.45" [36.8] 1.70" [43.2] 0.90" [22.9] 1.04" [26.5] 6-32 UNC .25 [6.35] DEEP MTG. HOLES x 4 0.45" [11.4] 0.30" [7.6] 0.23" [5.84] 1.50" [38.1] 1.20" [30.5] 2.75" [69.9] 0.60" [15.2] SA4S25-02 CAD Drawing 2 dB Fixed Attenuator SMA Male (Plug) to SMA Female (Jack) Up to 4 GHz Rated to 25 Watts, Heatsink Body, 1.2 VSWR