THROUGH-HOLE TYPE Common-Mode Choke APPLICATIONS FEATURES 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 Low cost Low resistance Excellent electrical isolation and environmental stability o ELECTRICAL CHARACTERISTICS @25 C Inductance (uH) (1-8) 18~36 24 36 PART NO. CMK08B02TH CMK08B03TH CMK08B04TH Leakage Inductance (uH) Max (1-8, Short Others) 0.3 0.2 0.3 Interwinding Capacitance (pF) Max DC Resistance ( ) Max 25 15 25 0.065 0.30 0.35 MECHANICAL CONSTRUCTION SCHEMATICS A 8 7 6 2 3 8 7 6 5 1 2 3 4 5 CMK08B02 1 Turns Ratio @100KHz 5% 1:1:1:1 1:1:1:1 1:1:1:1 B 4 DATE CODE IMPEDANCE CURVE 4000 E CMK08B04TH C TYP 3000 F (Ohms) D G 2000 MIN 1000 I J K 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 70 50 100 200 300 FREQUENCY (MHz) ATTENUATION ATTENUATION (dB) H 0.005 0.005 0.005 0 -5 -10 -15 -20 -25 CMK08B03TH 1 10 FREQUENCY (MHz) 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-18 100