P409CP104M275AH221

Resistance - Channel (Ohms):	220
Height:	0.650" (16.50mm)
Size / Dimension:	0.945" L x 0.445" W (24.00mm x 11.30mm)
Package / Case:	Radial
Mounting Type:	Through Hole
Voltage - Rated:	275VAC
Applications:	General Purpose
Operating Temperature:	-40°C ~ 85°C
ESD Protection:	No
Values:	R = 220 Ohms, C = 0.1µF
Series:	P409
Attenuation Value:	--
Center / Cutoff Frequency:	--
Number of Channels:	1
Technology:	RC
Filter Order:	1st
Type:	Low Pass
Part Status:	Active
Packaging:	Bulk

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EMI/RFI Filters (LC, RC Networks) Electro Magnetic Interference (EMI) and Radio Frequency Interference (RFI) Filters, such as the P409CP104M275AH221 type, are becoming increasingly popular as more and more electronic and electrical components and gadgets are being used at home and in the workplace. EMI and RFI filters are installed in various applications to attenuate Conducted Electromagnetic Interference (CEMI) from the radiated environment and increase the immunity of a circuit or system to EMI.An EMI/RFI filter is made up of inductors (L) and capacitors (C) connected in series or parallel. The most commonly used type is the LC filter, also known as a low-pass filter, which can be used for both CEMI or EMI suppression. In an LC filter, the inductor acts as a low impedance path restricting high-frequency signals from traveling through, while allowing low frequency, steady-state, signals to pass. The capacitor is used to isolate DC voltages, increase high frequency currents, and act as an energy store which helps the filter’s effectiveness. The P409CP104M275AH221 Filter is a double shielded LC filter specifically designed for EMI protection, with an input frequency range of 50-1000 mHz and an insertion loss of 5dB. The filter is also low profile and can be used in a variety of applications, such as electronic measurement and control equipment, medical and audio systems, computers and communications systems, as well as military and aerospace applications. The filter also eliminates ringing in switching power supplies, reduces common mode noise in differential systems, and reduces conducted emission levels to meet FCC, EMI and RFI requirements. In addition to LC filters, there are also RC filters which are generally used in signal conditioning and low-voltage applications where space is limited. RC filters operate by limiting the frequency range of the signals that can pass through them. They are also used to suppress RFI at the source of ignition sparks or in spark arrestors, as well as for coupling two pieces of equipment or transmission lines. In the end, filters such as the P409CP104M275AH221 are used to prevent RFI and EMI interference from noise and power disturbances in the environment and thus help to keep equipment and systems running smoothly. These filters are essential for increasing the safety, reliability, and performance of a wide variety of applications, and will continue to play an important role in our increasingly connected world.

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