LinkCom Manufacturing Co.,Ltd Common Mode SMD Filter for Signal Line CMF Series CMF1210U Features: Small size. Highly effective in noise suppression. High common-mode impedance at noise band and low differential-mode impedance at signal band. Virtually no distortion on high speed signal. Adopted high precision micro-production technology, quality is ensured by all day CCD inspection. This series is in compliance with RoHS Directive, Halogen free, and compatible with lead-free solders. Operating temperature: -25°C ~ 85°C. Applications: Noise countermeasure for any electronic devices such as personal computer and peripheral equipment, Universal Serial Bus(USB), amusement equipment (IEEE 1394), LCD panels (LVDS), etc. Product Identification: Schematic: C M F 1 2 1 0 U – 2 5 0 – 2P 1 2 3 4 5 1. Series : CMF=Common Mode Filter 2. Dimension Code: 1.25mmx1.0mm 3. Shielding Type/Application 4. Impedance Value 5. Number of lines 1 U=USB 4 2 250=25Ω No Polarity 3 2P=2-line Dimension(mm): A B Epoxy A : 1.25 ± 0.20 C B : 1.00 ± 0.20 C : 0.90 ± 0.20 Terminations Wires ④ ① 1.7 (0.36) 0.32 0.36 1.0 (0.36) ② ③ (0.33) (0.33) 0.54 0.62 Recommended layout 40 LinkCom Manufacturing Co.,Ltd Common Mode SMD Filter for Signal Line CMF Series CMF1210U Electrical Characteristics Common-Mode Part Number DC Resistance Rated Current Rated Voltage Rdc(Ω) Max. Idc(mA) Max. Vdc(V) Impedance Z(Ω) at 100MHz Cut-off Insulation Frequency Resistance (GHz)Typ (MΩ)Min. CMF1210U-250-2P 25±25% 0.25 300 50 8.5 10 CMF1210U-500-2P 50 ±25% 0.25 300 50 8.5 10 CMF1210U-670-2P 67 ±25% 0.25 300 50 8.5 10 CMF1210U-900-2P 90 ±25% 0.30 300 50 8.5 10 CMF1210U-121-2P 120 ±25% 0.40 200 50 8.5 10 1.Rdc:Single Wire Test Value 2.Idc :DC current at which the inductance drops 10% from its value without current. 41 LinkCom Manufacturing Co.,Ltd Common Mode SMD Filter for Signal Line CMF Series CMF1210U Characteristics(Reference) CMF1210U-250-2P 10000 CMF1210U-500-2P 10000 Z (common mode) Z(differential mode) 1000 Impedance(Ω) Impedance(Ω) 1000 Z (common mode) Z(differential mode) 100 10 100 10 1 1 1 10 Frequency(MHz) 100 1000 1 CMF1210U-670-2P 10000 10000 Z (common mode) Z(differential mode) Frequency(MHz) 100 1000 Z (common mode) Z(differential mode) 1000 Impedance(Ω) Impedance(Ω) 1000 100 10 100 10 1 1 1 10 Frequency(MHz) 100 1000 1 CMF1210U-121-2P 10000 Z (common mode) Z(differential mode) 1000 Impedance(Ω) 10 CMF1210U-900-2P 100 10 1 1 10 Frequency(MHz) 100 1000 42 10 Frequency(MHz) 100 1000 LinkCom Manufacturing Co.,Ltd Common Mode SMD Filter for Signal Line CMF Series CMF1210U Insertion loss vs. Frequency (Reference) CMF1210U-250-2P USB 3.0 Choke Insertion Loss Graphic result USB 3.0 Chok e Common Mode Insertion Loss C1-(Pass) USB 3.0 Choke Impedance Graphic result USB 3.0 Choke Impedance C1 43 LinkCom Manufacturing Co.,Ltd Common Mode SMD Filter for Signal Line CMF Series CMF1210U CMF1210U-500-2P 44 LinkCom Manufacturing Co.,Ltd Common Mode SMD Filter for Signal Line CMF Series CMF1210U CMF1210U-670-2P USB 3.0 Choke Insertion Loss Graphic result USB 3.0 Choke Common Mode Insertion Loss C1-(Pass) USB 3.0 Choke Impedance Graphic result USB 3.0 Choke Impedance C1 45 LinkCom Manufacturing Co.,Ltd Common Mode SMD Filter for Signal Line CMF Series CMF1210U CMF1210U-900-2P USB 3.0 Choke Insertion Loss Graphic result USB 3.0 Choke Common Mode Insertion Loss C1-(Pass) USB 3.0 Choke Impedance Graphic result USB 3.0 Choke Impedance C1 46 LinkCom Manufacturing Co.,Ltd Common Mode SMD Filter for Signal Line CMF Series CMF1210U CMF1210U-121-2P USB 3.0 Choke Insertion Loss Graphic result USB 3.0 Choke Common Mode Insertion Loss C1-(Pass) USB 3.0 Choke Impedance Graphic result USB 3.0 Choke Impedance C1 47 LinkCom Manufacturing Co.,Ltd Common Mode SMD Filter for Signal Line CMF Series CMF1210U Packaging Information 1. Tape dimensions Ko P1 P0 P W Bo t Ao ( Dimensions in mm; Tolerance:±0.1) Symbol W P P0 P1 Ao Bo Ko t Dimension 8 4 4 2 1.2 1.45 0.95 0.22 2. Reel dimensions D ( Dimensions in mm ) C B A E 48 Symbol T A 180 B 60 C 13 D 14.4 E 8.4 LinkCom Manufacturing Co.,Ltd Common Mode SMD Filter for Signal Line CMF Series CMF1210U 3. Tapping figure Top cover tape Carrier tape Sprocket hole Cavity (chip insert) 4. Direction of Unreeling There is no continuation more than two vacancies of the product. (360 mm) Blank Chip Blank (50 pitches) Leader. (70 pitches) Material of carrier tape : Polystyrene Material of cover tape : Polyester 5. Cover Tape Peel Strength The force for tearing off cover tape is 0.05~0.69(N) in the arrow direction at the following conditions: Temperature : 5 ~ 35℃ Humidity : 45 ~ 85% Atmospheric pressure : 860 ~ 1060 hpa 160 ~ 180。 Top cover tape Base tape 6. Packing Quantity φ180 mm reel T type : 3000 pcs./reel 49