KNA21250C18UA3TS Filters

Current:	25mA
Height:	0.033" (0.85mm)
Size / Dimension:	0.079" L x 0.049" W (2.00mm x 1.25mm)
Package / Case:	0805 (2012 Metric), Array, 10 PC Pad
Mounting Type:	Surface Mount
Voltage - Rated:	25V
Applications:	Data Lines for Mobile Devices
Operating Temperature:	-25°C ~ 85°C
ESD Protection:	No
Values:	C = 18pF
Series:	KNA, Kyocera
Resistance - Channel (Ohms):	--
Attenuation Value:	25dB @ 470MHZ ~ 1GHz
Center / Cutoff Frequency:	250MHz (Cutoff)
Technology:	LC
Filter Order:	--
Type:	Low Pass
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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EMI/RFI Filters (LC, RC Networks)

EMI/RFI (electromagnetic interference/ radio frequency interference) filtering enables different devices (like the KNA21250C18UA3TS) to operate with less interference caused by external devices. Any form of external electromagnetic interference, either electric or magnetic in origin, can create problems in the performance of the KNA21250C18UA3TS. EMI/RFI filters are used to reduce the effect these interferences have on the performance of the device.EMI/RFI filters are made up of LC (inductance-capacitance) and RC (resistance-capacitance) networks of components, which act together to filter out and reduce unwanted interference. LC and RC networks are used as filters to provide better signal integrity by blocking unwanted signals. This is achieved by the components working together to form an electronic circuit with a unique set of characteristics that gives it particular filtering properties.In a LC filter, the inductance works to block high frequencies, while the capacitance blocks low frequencies. The capacitance stores energy and provides a path for high frequency signals, allowing them to pass through. The inductance acts as a choke, creating resistance to current, preventing low frequency signals from passing through. The RC filter works in a similar way, but its resistance and capacitance interact differently. The resistance works to block low frequency signals, while the capacitance acts as an energy store, allowing high frequency signals to pass through.The KNA21250C18UA3TS uses EMI/RFI filters for a number of reasons. Firstly, to reduce the interference that external sources create, allowing for more reliable and steady operation. Secondly, to reduce the total electromagnetic radiation, making it safer for the environment and people. Lastly, to reduce the amount of power being consumed, increasing the device\'s efficiency and battery life.The KNA21250C18UA3TS EMI/RFI filters are used in a number of different applications. Examples include audio equipment, automotive electronics, cell phones, medical equipment, as well as computer and networking equipment. In all these applications the filters are used to enable the devices to properly block out and reduce unwanted interference, allowing them to function correctly.In conclusion, EMI/RFI filters are essential components for the KNA21250C18UA3TS to reduce the interference caused by external sources for reliable and efficient operation. LC and RC networks of components are used to form the filter and give it the properties needed for effective filtering. The filters are used in a range of applications to reduce interference and power consumption, ensuring the KNA21250C18UA3TS can reliably complete the desired tasks.

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Part Number	Manufacturer	Price	Quantity	Description