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Helical coils

Flat Helical windings are popular in application where a high stacking ratio is required. It has good thermal properties and low skin effects in high frequency applications due to large surface area and shallow skin depth. It is commonly used in high current inductors, common mode chokes, differential mode chokes, power factor correction inductors and transformers. Other application includes motor windings, etc.
helical coils
Helical coil CPH2,5 - dimensions ±20%
OD - output diameter11,7 mm
ID - input diameter6,6 mm
T - wire thickness (with isolation)1,1 mm
W - wire width (with isolation)2,6 mm
a - soldered leadout2 mm
b - unsoldered leadout5 mm
IndexNumber of turnsLength H ±20%Inductance
(f=500kHz) ±10%
Imax.RDC±20%
CPH2,5x1,51,52,4 mm20 nH25 A0,29 mΩ
CPH2,5x2,52,53,5 mm50 nH25 A0,52 mΩ
CPH2,5x3,53,54,6 mm80 nH25 A0,76 mΩ
CPH2,5x4,54,55,8 mm120 nH25 A0,97 mΩ
CPH2,5x5,55,56,7 mm150 nH25 A1,20 mΩ
CPH2,5x6,56,58,0 mm190 nH25 A1,42 mΩ
CPH2,5x7,57,59,6 mm230 nH25 A1,66 mΩ
CPH2,5x8,58,510,7 mm270 nH25 A1,85 mΩ
CPH2,5x9,59,511,8 mm300 nH25 A2,14 mΩ
CPH2,5x10,510,512,9 mm340 nH25 A2,45 mΩ

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