Common mode
Toroidal winding series
● Low energy loss, suitable for applications whose inductance varies with current.
● Choose different core materials as per different suppressing frequency points.
● The two windings of common mode choke cross the core in the same direction, the magnetic flows produced by common mode signals when they pass the ferrite core also share the same direction, so the flows overlap and as a result give play to effect of induction. By analysing the working principle of common mode inductor, we can know the reason that common mode inductor doesn't react to differential mode signals is the result that the magnetic flows produced by differential mode signals of the two wires crossing the core , whose values are equal but directions are opposite to each other, mutually offset. In order to make common mode inductor give effect to differential mode signals, adjust the turns of two windings as unequal, then the magnetic flows caused by them won't totally be offset by each other, under this condition, the common mode inductor can make effect to both common mode and differential mode signals. We may call it common-differential mode inductor. What should be taken into consideration is that the core of common mode inductor is made from ferrite, whose uI value is generally higher as 4000, therefore, its resisting ability to saturation is not good. So the differential mode inductance value should be chosen properly when design the parameters, to avoid losing working effect when there arises saturation at rated operation conditions.
Toroidal winding series
● Resist AC and let go DC, resist high frequency and let go low frequency, which means there is great resistance when high-frequency signals try crossing the induction winding, it's hard to pass, and for low-frequency signals, it's the opposite to high-frequency signals. The induction winding's electric resistance to AC is nearly zero.
● It has the functions of sorting signals, filtering noise, stabilizing current, suppressing EMI and so on. We usually see ferrite cores in electronic devices, they combine the cables and form toroidal winding inductors, which are anti-interference components commonly used for electronic circuits. It's widely called absorbing core because it has nice performance on shielding high-frequency noise, and also called ferrite core because it's generally made from ferrite material. Ferrite core shows different impedance characteristics at different frequencies. Its impedance is low at low frequency but it will rapidly increase when the frequency get higher.
● Widely used for various consumer electronics in daily life such as mobile phone, notebook, display, camera, etc.
● Automotive electronic parts will also be used around engine compartment.
P/N Description:
TII 25*15*13 192 P
TII --------------- Series name
25*15*13 -------- Dimensions
192 -------------- Inductance【192=1.9mH】
P ---------------- Tolerance【P=Min】
