Model BD2425N5050AHF Rev B Ultra Low Profile 0404 Balun 50Ω to 50Ω Balanced Description The BD2425N5050AHF is a low profile, low impedance sub-miniature unbalanced to balanced transformer designed for differential inputs and output locations on modern chipsets targeted at 802.11 b+g, MIMO b+g, Bluetooth, Zigbee, ULPR and ISM band Applications in an easy to use surface mount package. The BD2425N5050AHF is ideal for high volume manufacturing and delivers higher performance than traditional ceramic baluns. The BD2425N5050AHF has an unbalanced port impedance of 50Ω and a 50Ω balanced port impedance.. The output ports have equal amplitude (-3dB) with 180 degree phase differential. The BD2425N5050AHF is available on tape and reel for pick and place high volume manufacturing. Detailed Electrical Specificati ons: Specifications subject to change without notice. Features: ROOM (25°°°°C) • 2400 – 2500 MHz Parameter Min. Typ. Max Unit • 0.56 mm Height Profile Frequency 2400 2500 MHz • 50 Ohm to 2 x 25 Ohm • Low Insertion Loss Unbalanced Port Impedance 50 Ω • Targeted At 802.11 b+g, MIMO Balanced Port Impedance 50 Ω b+g, Bluetooth, Zigbee, ULPR Return Loss 15 23 dB and ISM Band Applications Insertion Loss* 0.7 0.9 dB • Surface Mountable Amplitude Balance 0.3 0.8 dB • Tape & Reel • Non-conductive Top Surface Phase Balance 3 7 Degrees • RoHS Compliant CMRR 30 dB • Halogen free Power Handling 0.75 Watts Operating Temperature -55 +85 ºC * Insertion Loss stated at room temperature (Insertion Loss is approximately 0.1 dB higher at +85 ºC) Outline Drawing Top View (Near-side) Side View Bottom View (Far-side) .012 [0.30] .022±.002 .041±.004 [0.56±0.05] .012 [0.30] 1 2 [1.04±0.10] 3x.010 .041±.004 [0.25] [1.04±0.10] 4 3 .020 [0.51] 3x.010 [0.25] .020 [0.51] Pin Designation GND / DC Feed 1 + RF GND 2 Unbalanced Port Dimensions are in Inches [Millimeters] 3 Balanced Port Mechanical Outline 4 Balanced Port Tolerances are Non-Cumulative 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 BD2425N5050AHF Rev B Typical Performance:2300 MHz. to 2600 MHz. Return Loss - Input Insertion Loss 0 0 -3 -0.3 -6 -0.6 -9 -0.9 -12 -1.2 -15 -1.5 B]-18 B]-1.8 d d [-21 [-2.1 -24 -2.4 -27 -2.7 -30 -3 -33 -3.3 -36 -3.6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 4 5 6 3 4 5 6 2 2 2 2 2 2 2 2 Frequency [MHz] Frequency [MHz] Amplitude Balance Phase Balance 2 20 1.5 15 1 10 0.5 5 [dB] 0 deg 0 -0.5 -5 -1 -10 -1.5 -15 -2 -20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 4 5 6 3 4 5 6 2 2 2 2 2 2 2 2 Frequency [MHz] Frequency [MHz] CMRR 0 -3 -6 -9 -12 -15 dB]-18 [ -21 -24 -27 -30 -33 -36 0 0 0 0 0 0 0 0 3 4 5 6 2 2 2 2 Frequency [MHz] 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 BD2425N5050AHF Rev B Wide Band Performance: 500 MHz. to 8500 MHz. Return Loss - Input Insertion Loss 0 0 -3 -0.3 -6 -0.6 -9 -0.9 -12 -1.2 -15 -1.5 dB]-18 dB]-1.8 [ [ -21 -2.1 -24 -2.4 -27 -2.7 -30 -3 -33 -3.3 -36 -3.6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 55 105 155 205 255 305 355 405 455 505 555 605 655 705 755 805 5 55 105 155 205 255 305 355 405 455 505 555 605 655 705 755 805 Frequency [MHz] Frequency [MHz] Amplitude Balance Phase Balance 2 20 1.5 15 1 10 0.5 5 [dB] 0 deg 0 -0.5 -5 -1 -10 -1.5 -15 -2 -20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 0 5 0 5 0 5 0 5 0 5 0 5 0 5 0 5 0 5 0 5 0 5 0 5 0 5 0 5 0 5 0 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 Frequency [MHz] Frequency [MHz] CMRR 0 -3 -6 -9 -12 -15 dB]-18 [ -21 -24 -27 -30 -33 -36 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 0 5 0 5 0 5 0 5 0 5 0 5 0 5 0 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 Frequency [MHz] 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 BD2425N5050AHF Rev B Mounting Configuration: In order for Xinger surface mount components to work optimally, the proper impedance transmission lines must be used to connect to the RF ports. If this condition is not satisfied, insertion loss, Isolation and VSWR may not meet published specifications. All of the Xinger components are constructed from ceramic filled PTFE composites which possess excellent electrical and mechanical stability having X and Y thermal coefficient of expansion (CTE) of 17 ppm/oC. An example of the PCB footprint used in the testing of these parts is shown below. An example of a DC-biased footprint is also shown below. In specific designs, the transmission line widths need to be adjusted to the unique dielectric coefficients and thicknesses as well as varying pick and place equipment tolerances. With No DC Bias With DC Bias 3X .011 3X .011 Plated thru [0.29] [0.29] hole to Plated thru .008 [0.21] hole to .008 [0.21] ground 3X .011 ground 3X .011 [0.29] .013 [0.33] [0.29] .013 [0.33] .020 .008 [0.21] .020 .008 [0.21] [0.50] [0.50] 3X Transmission 3X Transmission Line .020 Line [.00.2500] [0.50] Circuit Pattern Circuit Pattern Footprint Pad (s) Footprint Pad (s) Dimensions are in Inches [Millimeters] Solder Resist Dimensions are in Inches [Millimeters] Solder Resist Mounting Footprint Mounting Footprint 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 BD2425N5050AHF Rev B Packaging and Ordering Information Parts are available in reel and are packaged per EIA 481-2. Parts are oriented in tape and reel as shown below. Minimum order quantities are 4000 per reel. See Model Numbers below for further ordering information. ØA ØC ØD TABLE 1 QUANTITY/REEL REEL DIMENSIONS (inches [mm]) B ØA 7.00 [177.8] B 0.32 [8.0] 4000 ØC 2.0 [50.8] ØD 0.512 [13.0] 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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