ELK-EA221FA Filters

Current:	6A
Height:	0.087" (2.20mm)
Size / Dimension:	0.126" L x 0.071" W (3.20mm x 1.80mm)
Package / Case:	1207 (3218 Metric), 3 PC Pad
Mounting Type:	Surface Mount
Voltage - Rated:	50V
Applications:	Data Lines for Mobile Devices
Operating Temperature:	-20°C ~ 85°C
ESD Protection:	No
Values:	C = 220pF
Series:	ELKEA
Resistance - Channel (Ohms):	--
Attenuation Value:	--
Center / Cutoff Frequency:	30MHz (Cutoff)
Number of Channels:	1
Technology:	LC (T-Type)
Filter Order:	3rd
Type:	Low Pass
Part Status:	Active
Packaging:	Tape & Reel (TR)

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EMI/RFI Filters (LC, RC Networks)

ELK-EA221FA EMI/RFI filters are used in a variety of applications, from consumer electronics to industrial and medical equipment. These filters are intended to reduce the emission of radio-frequency interference (RFI) and electromagnetic interference (EMI). The filters can be used to reduce noise and keep the line voltage within safety limits.The ELK-EA221FA EMI/RFI filter consists of an inductor and a capacitor connected in series. This type of filter is also known as an LC or RC filter. The inductor and capacitor act together to reduce the frequency of the higher frequencies that cause noise and interference. The filter also limits the voltage and current that can pass through it, helping to protect the equipment from spikes and other disturbances.When the filter is connected to a power supply, the inductor and capacitor work together to create a filter. The inductor stores energy in the form of magnetic field, while the capacitor stores energy in the form of electric field. When a signal passes through the filter, the inductor begins to oppose the current, while the capacitor begins to oppose the voltage. This impedance acts like a sponge, absorbing the higher frequencies and stopping them from reaching the equipment.The ELK-EA221FA EMI/RFI filter also has other features that can make it more useful. For instance, the filter can be designed with different characteristics, such as different impedance values and different frequencies. Additionally, the filter can be used in combinations with other filter circuits, such as band-pass and low-pass filters. This allows for more control of the frequencies that can pass through the filter and helps to reduce any emissions from the device.In conclusion, the ELK-EA221FA EMI/RFI filter is an effective way to reduce noise and interference from equipment. It is designed to absorb the higher frequencies that can cause interference and help protect equipment from spikes and other disturbances. This filter is used in a variety of applications, from consumer electronics to industrial and medical equipment, and can be used in combination with other filter circuits for more control of the frequencies that can pass through.

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