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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 - dimensions ±20%
OD - output diameter9 mm
ID - input diameter4,8 mm
T - wire thickness (with isolation)1,1 mm
W - wire width (with isolation)2,2 mm
a - isolated leadout3 mm
b - unsoldered leadout4 mm
IndexNumber of turnsLength H ±20%Inductance
(f=500kHz) ±10%
Imax.RDC±20%
CPH2x1,51,52,4 mm22 nH20 A0,42 mΩ
CPH2x2,52,53,5 mm33 nH20 A0,65 mΩ
CPH2x3,53,54,6 mm50 nH20 A0,87 mΩ
CPH2x4,54,55,5 mm75 nH20 A1,12 mΩ
CPH2x5,55,56,6 mm100 nH20 A1,32 mΩ
CPH2x6,56,57,7 mm125 nH20 A1,54 mΩ
CPH2x7,57,58,7 mm150 nH20 A1,76 mΩ
CPH2x8,58,59,7 mm175 nH20 A1,95 mΩ
CPH2x9,59,510,9 mm200 nH20 A2,2 mΩ

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