4DFA-902E-10=P

Series:	4DFA
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Frequency:	902.5MHz Center
Bandwidth:	12.5MHz
Filter Type:	Band Pass
Ripple:	1dB
Insertion Loss:	2.5dB
Mounting Type:	Surface Mount
Package / Case:	5-SMD, Flat Leads
Size / Dimension:	0.492" L x 0.492" W (12.50mm x 12.50mm)
Height (Max):	0.197" (5.00mm)

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RF Filters help to shape the frequency spectrum so that an optical channel can easily pass through material such as glass and plastic without degradation of performance. The purpose of a RF filter is to attenuate certain unwanted frequencies in order to increase signal-to-noise ratio (SNR) and have a more reliable signal transmission.One such example of a RF filter is the 4DFA-902E-10=P, which is designed as a band-reject filter. This means that the filter can be tuned to reject a certain range of frequencies while allowing signals outside of this specified range to pass through. This makes the 4DFA-902E-10=P a great choice for applications where unwanted frequencies must be blocked, such as in RF systems.The working principle of the 4DFA-902E-10=P is based on the principle of electronic resonance. Electronic resonance involves inducing an electric current through a coil which creates a magnetic field. This field is what is used to adjust the filters frequency-response curve. Since the 4DFA-902E-10=P is a band-reject filter, it uses multiple coils placed in series to achieve the desired frequency-response.The 4DFA-902E-10=P can be used in a variety of applications such as radio frequency (RF) amplifiers, radio receivers, and satellite communications. For instance, in order for a radio receiver to pick up a signal from the transmitter on a particular frequency, it must reject any other frequencies that may be present. The 4DFA-902E-10=P can be used to accurately block out the frequencies that are extraneous in order for the receiver to pick up the desired signal.Furthermore, the 4DFA-902E-10=P is able to maintain its properties across a wide temperature range (-40°C to 125°C). This makes it a reliable filter, even in harsh environmental conditions.In conclusion, the 4DFA-902E-10=P is an excellent choice for RF filtering applications due to its wide operating temperature and ability to accurately reject certain frequencies. It is easy to adjust and maintain, and is ideal for use in RF amplifiers, receivers, and satellite communications.

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