Model X2AS Rev C SMT Crossover Description The X2AS is a low profile crossover to intersect an RF and DC circuit trace in an easy to use surface mount package designed for frequencies up to 6 GHz. The X2AS is ideal for any application where an RF circuit must intersect with a DC circuit without resorting to a multilayer PCB. Parts have been subjected to rigorous qualification testing and units are 100% tested. They are manufactured using materials with x and y thermal expansion coefficients compatible with common substrates such as FR4, G- 10, RF-35, RO4003 and polyimide. Produced with 6 of 6 RoHS compliant tin immersion finish. Electrical Specifications ** Features: Frequency Port Impedance Return Loss • DC – 6.0 GHz GHz Ohms dB Min • RF – DC Crossover DC – 2.5 50 20 • Low Loss 2.5 – 3.5 50 17 • DC Isolation 3.5 – 6.0 50 15 • Surface Mountable Insertion Operating • Tape And Reel Power ΘJC Loss Temp. • Convenient Package • Lead Free dB Max Watts ºC / Watt ºC • 100 % Tested 0.05 30 250.9 -55 to +85 0.10 15 250.9 -55 to +85 0.15 10 250.9 -55 to +85 **Specification based on performance of unit properly installed on microstrip printed circuit boards with 50 Ω nominal impedance. Specifications subject to change without notice. Mechanical Outline Dimensions are in Inches [Millimeters] X2AS Mechanical Outline USA/Canada: (315) 432-8909 Available on Tape and Reel for Pick and Toll Free: (800) 411-6596 Place Manufacturing. Europe: +44 2392-232392

Model X2AS Rev C Insertion Loss and Power Derating Curves Typical Insertion Loss Derating Curve for X2AS X2AS Power Derating Curve 0 50 -0.02 45 DC - 2.5 -0.04 2.5 - 3.5 40 3.5 - 6.0 -0.06 typical insertion loss (f=2.5Ghz) dB)-0.08 ttyyppiiccaall iinnsseerrttiioonn lloossss ((ff==63G.5hGzh)z) 35 Loss ( -0.1 Watts) 30 nsertion -0.12 Power ( 25 I 20 -0.14 15 -0.16 10 -0.18 5 -0.2 -100 -50 0 50 100 150 200 0 Temperature of the Part (oC) 0 50 85 100 150 200 Mounting Interface Temperature (oC) Insertion Loss Derating: Power Derating: The insertion loss, at a given frequency, of a group of The power handling and corresponding power derating couplers is measured at 25°C and then averaged. The plots are a function of the thermal resistance, mounting measurements are performed under small signal surface temperature (base plate temperature), conditions (i.e. using a Vector Network Analyzer). The maximum continuous operating temperature of the process is repeated at 85°C and 150°C. A best-fit line coupler, and the thermal insertion loss. The thermal for the measured data is computed and then plotted insertion loss is defined in the Power Handling section of from -55°C to 150°C. the data sheet. As the mounting interface temperature approaches the maximum continuous operating temperature, the power handling decreases to zero. If mounting temperature is greater than 95°C, Xinger crossover will perform reliably as long as the input power is derated to the curve above. USA/Canada: (315) 432-8909 Available on Tape and Toll Free: (800) 411-6596 Reel for Pick and Place Europe: +44 2392-232392 Manufacturing.

Model X2AS Rev C Typical Performance: 0.5 GHz to 6.0 GHz Return Loss X2AS Insertion Loss X2AS -10 0 -20 -0.1 ) ) B (dB-30 s (d-0.2 s s s o o L n L on etur-40 erti-0.3 R -55C ns -55C I 25C 25C -50 85C -0.4 85C 100 100 150C 150C -60 -0.5 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 Freq (MHz) Freq (MHz) Mounting Mounting Footprint In order for Xinger crossovers to work optimally, there To ensure proper electrical and thermal performance must be 50Ω transmission lines leading to and from all of there must be a ground plane with 100% the RF ports. Also, there must be a very good ground to solder connection underneath the part the corners of the crossover to insure proper electrical performance. If either of these two conditions are not satisfied, insertion loss, VSWR and isolation parameters may not meet published specifications. When a surface mount crossover is mounted to a printed circuit board, the primary concerns are; insuring the RF pads of the device are in contact with the circuit trace of the PCB and insuring the ground plane of neither the component nor the PCB is in contact with the RF signal. Since the component is not symmetrical, the crossovers are specifically oriented in the tape and reel. An example of how the PCB footprint could look is shown below. In specific designs, the 50Ω lines need to be adjusted to the unique dielectric coefficients and thicknesses as well as varying pick and place equipment tolerances. Dimensions are in Inches [Millimeters] X2AS Rev A Mounting Footprint USA/Canada: (315) 432-8909 Available on Tape and Reel for Pick and Toll Free: (800) 411-6596 Place Manufacturing. Europe: +44 2392-232392

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