Amorphous Nanocrystalline Toroidal Inductor DIP Common Mode Coil
Filter Inductor
1.Product Description
Common Mode Coil Filter Inductor, also known as common mode
inductor, is an electronic component used to suppress common mode
interference and is widely used in the electromagnetic
compatibility (EMC) design of various electronic devices. It
consists of a magnetic core and two or more coils wound on the
core. The two sets of coils have equal number of turns and are
wound in opposite directions, and this structural design makes them
present different impedance characteristics for common mode signals
and differential mode signals.
In circuit operation, the normal differential mode signal current
in the two groups of coils in the opposite direction of the
magnetic field generated, offset each other, so the common mode
inductance of the differential mode signal presents a lower
impedance, the differential mode signal can pass through smoothly.
The common-mode interference signal current in the two groups of
coils in the same direction of the magnetic field, superimposed on
each other, so that the common-mode inductance of the common-mode
signal presents a higher impedance, thus effectively inhibiting the
transmission of common-mode interference signals in the circuit.
| Model Number | T15*21*10-4mH |
| Material | Amorphous nanocrystalline,copper wire |
| Place of Origin | Guangdong, China |
| Brand Name | ZXY |
| Usage | PCB board |
| Wire dia. | 0.025~2.0 |
| Winding | 2.5~50000 |
| Lead way | Pins |
| DC Resistance (mΩ) | Customized |
| Parameters | Customized |
| Exports | Worldwide |
2.Features
1. Unique Magnetic Circuit Characteristics: Based on its special
coil winding method, Common Mode Coil Filter Inductor is able to
effectively differentiate between common mode signals and
differential mode signals in its magnetic circuit design. When
common mode current passes through, the magnetic fluxes in the core
are superimposed on each other and the permeability is higher, thus
generating larger inductance and impedance and suppressing common
mode signals. For differential mode currents, the fluxes cancel
each other out, the permeability is lower, the inductance and
impedance are smaller, and the effect on the differential mode
signal is smaller.
2. Significant frequency characteristics: the impedance of Common
Mode Coil Filter Inductor changes with frequency. In the
low-frequency band, Common Mode Coil Filter Inductor's ability to
suppress common mode interference is relatively weak; as the
frequency rises, its impedance increases rapidly, and the
suppression effect on common mode interference is significantly
enhanced. This characteristic makes it work better in
high-frequency interference environment, effectively filtering out
high-frequency common-mode noise.
3. Compact structure: usually use toroidal core, the winding coil
is closely arranged on the core, the overall structure is more
compact. This compact design makes the common mode inductor can
achieve better filtering effect in the limited space, easy to
install in the circuit board of various electronic equipment, to
meet the development needs of modern electronic equipment
miniaturization and integration.
3.Applications
1. Power supply field
--Switching power supply
--Uninterruptible power supply
2.Communication field
--Network communication equipment
--Wireless communication equipment
3.Automotive electronics field
--Engine control system
--In-car entertainment systems
4.Industrial control field
--Programmable logic controller
-Motor drive system
5.Medical equipment field
--Diagnostic equipment
--Monitoring equipment
