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| ( DataSheet : www..com ) EMI Noise Filter KNF 21/32 Series / Signal Line Use HOW TO ORDER Part Number KNF 32 050 -W 3 1 2 3 45 1 Series 2 Size: 21=2012 (0805); 32=3216 (1206) 3 Type (Freq.): 025 - 25MHz, 050 - 50MHz 100 -100MHz, 200 - 200MHz 400 - 400MHz 4 Taping Direction (W, X) W (STD) X 5 Quantity Per Reel: 3 - 3000p (Std.) FEATURES * Distributed constant type LC filter. Prevents ringing caused by circuit impedance. Suitable for high speed digital circuits and visual line circuits. * Stable noise attenuation over wide frequency ranges. * Low profile (H = 1.0mm max.) suitable for miniature electronic equipment. * First class auto-placement. DIMENSIONS A 3 Input Directional Mark 1 2B APPLICATIONS * PCs, Laser Printers, Clock Data Lines for LCD Display * High Speed Video Signal Circuits and Interface Circuits * High Speed Digital Circuits * Anti-Noise Solution Achieves effective noise suppression in noisy high speed circuits without signal waveform distortion. 1 : INPUT 2 : OUTPUT 3 : GROUND D C millimeters (inches) KNF 21 A B C D Rated Current (A) 0.15 0.15 0.15 0.15 0.20 0.20 0.20 0.20 Rated Voltage (V) 25 25 25 25 25 25 25 25 2.00 (0.079) 1.25 (0.049) 0.80 (0.031) 0.40 (0.016) KNF 32 3.20 (0.126) 1.60 (0.063) 1.00 (0.039) 0.60 (0.024) SPECIFICATIONS Part Number KNF21050 KNF21100 KNF21200 KNF21400 KNF32025 KNF32050 KNF32100 KNF32200 Cut off Frequency (MHz) 50 100 200 400 25 50 100 200 Capacitance (pF) 130 65 33 17 235 130 65 33 Attenuation (dB) 20 (350-850) MHz 20 (450-950) MHz 20 (700-1200) MHz 20 (900-1400) MHz 20 (200-600) MHz 20 (350-850) MHz 20 (450-950) MHz 20 (600-1100) MHz IN OUT GND Equivalent Circuit www..com www..com EMI Noise Filter KNF 21/32 Series / Signal Line Use PERFORMANCE CHARACTERISTICS 10 0 Attenuation (dB) -10 -20 -30 -40 -50 10 20 50 100 200 500 1000 2000 Frequency (MHz) 100MHz 50MHz KNF 21 SERIES 400MHz 200MHz 10 0 Attenuation (dB) -10 -20 -30 -40 -50 10 20 KNF 32 SERIES 200MHz 100MHz 50MHz 25MHz 50 100 200 500 1000 2000 Frequency (MHz) TYPICAL EXAMPLE OF SUPPRESSION KC KNF32050 Spectrum Attenuation (dB) 10 0 -10 -20 -30 -40 2V 20ns 2V 20ns LAND PATTERN U (Via Hole) Distributed Parameter Circuit OUTPUT WAVE FORM ORIGINAL WAVE FORM QS W R 0 100 200 300 400 500 Frequency (MHz) P C Foot Print Solder Resist Area LC FILTER Spectrum Attenuation (dB) 10 0 -10 -20 -30 -40 2V 20ns Lumped Parameter Circuit 74HC04 FILTER 74HC00 T Dimensions: millimeters (inches) KNF 21 T 10MHz Measuring Point 15cm KNF 32 4.40 (0.173) 1.40 (0.055) 3.00 (0.118) 2.50 (0.098) 1.20 (0.047) 0.60 (0.024) 0.60 (0.024) 0.50 (0.020) 3.20 (0.126) 1.00 (0.039) 2.30 (0.091) 1.20 (0.047) 0.80 (0.031) 0.40 (0.016) 0.60 (0.024) 0.30 (0.012) - 0.40 (0.016) W R C P Q S U 0 100 200 300 400 500 Frequency (MHz) NOTICE: Specifications are subject to change without notice. Contact your nearest AVX Sales Office for the latest specifications. All statements, information and data given herein are believed to be accurate and reliable, but are presented without guarantee, warranty, or responsibility of any kind, expressed or implied. Statements or suggestions concerning possible use of our products are made without representation or warranty that any such use is free of patent infringement and are not recommendations to infringe any patent. The user should not assume that all safety measures are indicated or that other measures may not be required. Specifications are typical and may not apply to all applications. USA AVX Myrtle Beach, SC Corporate Offices Tel: 843-448-9411 FAX: 843-448-1943 EUROPE Tel: 602-539-1496 FAX: 602-539-1501 ASIA-PACIFIC AVX/Kyocera, Singapore Asia-Pacific Headquarters Tel: (65) 258-2833 FAX: (65) 350-4880 AVX Southwest, AZ AVX Limited, England European Headquarters Tel: ++44 (0)1252 770000 FAX: ++44 (0)1252 770001 AVX GmbH, Germany - Elco Tel: ++49 (0) 2741 2990 FAX: ++49 (0) 2741 299133 AVX/Kyocera, China Tel: (86) 21-6249-0314-16 FAX: (86) 21-6249-0313 AVX South Central, TX Tel: 972-669-1223 FAX: 972-669-2090 AVX srl, Italy Tel: ++390 (0)2 614571 FAX: ++390 (0)2 614 2576 AVX/Kyocera, Malaysia Tel: (60) 4-228-1190 FAX: (60) 4-228-1196 AVX Northwest, WA Tel: 360-669-8746 FAX: 360-699-8751 AVX S.A., France Tel: ++33 (1) 69.18.46.00 FAX: ++33 (1) 69.28.73.87 AVX/Kyocera, Hong Kong Tel: (852) 2-363-3303 FAX: (852) 2-765-8185 AVX Southeast, NC Tel: 919-878-6357 FAX: 919-878-6462 AVX sro, Czech Republic Tel: ++420 (0)467 558340 FAX: ++420 (0)467 558345 Elco, Japan Tel: 045-943-2906/7 FAX: 045-943-2910 AVX North Central, IN Tel: 317-848-7153 FAX: 317-844-9314 AVX GmbH, Germany - AVX Tel: ++49 (0) 8131 9004-0 FAX: ++49 (0) 8131 9004-44 AVX/Kyocera, Korea Tel: (82) 2-785-6504 FAX: (82) 2-784-5411 AVX Canada Tel: 905-564-8959 FAX: 905-564-9728 Kyocera, Japan - AVX Tel: (81) 75-604-3426 FAX: (81) 75-604-3425 AVX Northeast, MA Tel: 508-485-8114 FAX: 508-485-8471 AVX/Kyocera, Taiwan Tel: (886) 2-2516-7010 FAX: (886) 2-2506-9774 Kyocera, Japan - KDP Tel: (81) 75-604-3424 FAX: (81) 75-604-3425 AVX Mid-Pacific, CA Tel: 408-436-5400 FAX: 408-437-1500 A KYOCERA GROUP COMPANY http://www.avxcorp.com S-EMI21/325M499-N |
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