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| THROUGH-HOLE TYPE Common-Mode Choke FEATURES Low cost Low resistance Excellent electrical isolation and environmental stability APPLICATIONS To suppress common mode noise in particular frequency range Eliminate the problem of conducted EMI in data line applications C M K 08 B 02 ELECTRICAL CHARACTERISTICS @25 C PART NO. CMK08B02TH CMK08B03TH CMK08B04TH Inductance (uH) (1-8) 18~36 24 36 Leakage Inductance (uH) Max (1-8, Short Others) 0.3 0.2 0.3 Interwinding Capacitance (pF) Max 25 15 25 DC Resistance ( ) Max 0.065 0.30 0.35 Turns Ratio @100KHz 5% 1:1:1:1 1:1:1:1 1:1:1:1 o MECHANICAL CONSTRUCTION A 8 7 6 5 SCHEMATICS 8 7 6 5 CMK08B02 B 1 2 3 4 1 2 3 4 DATE CODE IMPEDANCE CURVE E 4000 C CMK08B04TH TYP 3000 D (Ohms) 2000 MIN F G 1000 H I J 0.005 K 0.005 0.005 ATTENUATION (dB) UNIT : mm / inch A =11.90 0.254 / 0.315 B = 9.90 0.254 / 0.217 C = 6.40 0.254 / 0.157 D = 3.20 0.254 / 0.327 E = 0.50 0.254 / 0.028 F = 2.54 / 0.005 (TYP) G = 0.50 0.127 / 0.020 H = 7.62 / 0.300 (TYP) I = 7.62 / 0.300 (TYP) J = 1.10 0.127 / 0.043 K = 2.14 0.127 / 0.084 0.010 0.010 0.010 0.010 0.010 10 20 30 50 70 100 200 300 FREQUENCY (MHz) ATTENUATION 0 -5 -10 -15 -20 -25 CMK08B03TH 1 10 FREQUENCY (MHz) 100 DELTA ELECTRONICS, INC. (TAOYUAN PLANT CPBG) 252, SHANG YING ROAD, KUEI SAN, TAOYUAN HSIEN 333, TAIWAN, R.O.C. TEL: 886-3-3591968; FAX: 886-3-3591991 http://www.deltaww.com/products/networking/power.htm B-18 |
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