KNH21471-3AA

Current:	1A
Height:	0.037" (0.95mm)
Size / Dimension:	0.079" L x 0.049" W (2.00mm x 1.25mm)
Package / Case:	0805 (2012 Metric)
Mounting Type:	Surface Mount
Voltage - Rated:	50V
Applications:	General Purpose
Operating Temperature:	-25°C ~ 85°C
ESD Protection:	No
Values:	C = 470pF
Series:	KNH, Kyocera
Resistance - Channel (Ohms):	0.08
Attenuation Value:	--
Center / Cutoff Frequency:	--
Technology:	LC
Filter Order:	--
Type:	Low Pass
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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EMI/RFI Filters (LC, RC Networks)

The KNH21471-3AA is an EMI/RFI filter designed for use in a wide range of applications. Its main purpose is to reduce electromagnetic interference and radio frequency interference (EMI/RFI) which can cause disruptions and interference in other systems or connections that are operating in close proximity. In addition, the filter also serves to protect sensitive electronic equipment from the effects of external electromagnetic fields.This particular filter is designed with a small compact size and is capable of providing a high level of attenuation to reduce EMI/RFI. It uses a combination of two different filter technologies, namely low pass (LP) and high pass (HP) filters, to offer a wide range of signal suppression characteristics. The filter has a very low insertion loss (IL), meaning that signal energy is not lost during the filtering process. It also has a wide attenuation range, meaning that it can reduce EMI/RFI over a wide frequency range.The various components that comprise a KNH21471-3AA filter include a low pass filter, a high pass filter, and an inductor to provide additional EMI/RFI suppression. The unique construction of this filter allows it to be used in many different environments. It is capable of operating in either an AC or DC power supply, and is suitable for environments where standard wall current is available.The basic principle of operation of the KNH21471-3AA filter is as follows. The high pass and low pass filters work both to attenuate or reduce EMI/RFI in the signal path and also to help eliminate cross talk between different electrical system components. The inductor provides additional EMI/RFI suppression, helping to ensure that the filter will be able to reduce any external noise or interference that may be present in the signal.The KNH21471-3AA filter can be used in a variety of applications, such as:•Automotive electronics•Aerospace electronics•Industrial electronics•Medical electronics•Communication systems•Inertial sensors•Wireless detectors•Computer peripheralsThe KNH21471-3AA is designed to provide superior EMI/RFI reduction in a wide range of applications. It can easily fit into circuit layout where space is an issue. Its low power consumption ensures that the filter will not add too much load to the system and that it will not cause any increase in energy costs. It has a high attenuation range and is capable of suppressing EMI/RFI over a wide frequency range. It is also designed to provide reliable performance in any environment, and its design makes it an ideal choice for use in a number of different applications.

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