EMI220T-RC Filters

Current:	5A
Height:	0.315" (8.00mm)
Size / Dimension:	0.354" L x 0.126" W (9.00mm x 3.20mm)
Package / Case:	Radial - 3 Leads
Mounting Type:	Through Hole
Voltage - Rated:	50V
Applications:	General Purpose
Operating Temperature:	-25°C ~ 85°C
ESD Protection:	No
Values:	R = 0.05 Ohms, C = 22pF
Series:	EMIT
Resistance - Channel (Ohms):	0.05
Attenuation Value:	25dB @ 800MHz ~ 1GHz
Center / Cutoff Frequency:	--
Number of Channels:	1
Technology:	LC (T-Type)
Filter Order:	3rd
Type:	Low Pass
Part Status:	Active
Packaging:	Tape & Box (TB)

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Applications of EMI220T-RC

The EMI220T-RC filter has several key features that make it suitable for a range of applications. First, it has a very high common mode attenuation up to 80dB @ 10MHz, making it suitable for high-frequency applications. Additionally, its filter is designed to reduce both conducted and radiated emissions, making it particularly useful for applications that require both EMC compliance and EMI protection. Moreover, it can be used in AC/DC power supplies, laptop chargers, medical devices, computer peripherals, consumer applications, and more.

Working Principle of EMI220T-RC

The EMI220T-RC filter is designed to reduce EMI interference by blocking the transmission of unwanted signals while allowing the desired signals to pass through. This is achieved through the use of capacitors, inductors, and resistors to create an RC network. These components form a differential-mode filter, which creates a low-pass filter to reduce the current flow for high-frequency interference. At the same time, a common-mode filter is designed to eliminate common-mode signals, which could cause interference to other adjacent circuits. The filter is composed of two capacitors in series with an inductor connected between them. The inductor and capacitors together form a low-pass filter, which reduces the current flow of common-mode signals. Finally, the EMI220T-RC filter also includes a series resistor, which is used to limit the current and provide additional EMI protection. This resistor helps prevent signal overload, which could damage the filter or the connected circuit.

Conclusion

The EMI220T-RC filter is an effective and reliable solution for reducing the risk of EMI interference. Its high common mode attenuation and differential-mode/common-mode filters make it suitable for a range of applications, including AC/DC power supplies, laptop chargers, medical devices, computer peripherals, and more. Additionally, its series resistor helps limit the current and provide additional protection, ensuring the filter and the connected circuit remain safe.

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