B39431B3935H110

Series:	*
Part Status:	Active
Lead Free Status / RoHS Status:	--
Frequency - Center:	433.92MHz
Moisture Sensitivity Level (MSL):	--
Bandwidth:	--
Insertion Loss:	2.2dB
Ratings:	AEC-Q200
Applications:	Remote Control
Mounting Type:	Surface Mount
Package / Case:	6-SMD, No Lead
Height (Max):	0.043" (1.10mm)
Size / Dimension:	0.118" L x 0.118" W (3.00mm x 3.00mm)

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SAW Filters

SAW filters stands for Surface Acoustic Wave filters, it is an electronic filter used for signal processing in the microwave frequency range. In comparison to other types of filters such as LC filter, SAW filters typically have better out-of-band rejection but poorer in-band response that can be achieved with appropriate design. B39431B3935H110 is an example of SAW filter that is designed with low insertion loss, small size, high return loss, good temperature stability, etc. It is ideal for use in signal applications such as infrastructure base station, multiband RF front ends, and telecommunication system.

Application Field and Working Principle

The B39431B3935H110 is designed mainly for duplexer application, where isolation between Tx and Rx port is required. It works by allowing certain signal frequencies while at the same time rejecting other frequencies. The frequency selectivity of the B39431B3935H110 is achieved by providing a path between the input and output of the filter via two main components: a piezoelectric substrate and interdigital transducer (IDT) fingers. The IDT fingers work by vibrating the piezoelectric substrate at different frequency levels determined by the design of its structure and material used. This vibration in turn produces mechanical waves that separates certain signal frequencies while others are blocked to produce the desired out-of-band rejection. In addition, the B39431B3935H110 is designed to have low insertion loss, meaning that it causes minimal signal attenuation while operating within the prescribed frequency range. This is achieved through the use of high quality materials used in the substrate and IDT fingers, as well as careful design of the structure. The filter also has a low Return Loss that minimises signal reflections. This is done by introducing impedance matching components at the input and output of the filter in order to reduce the mismatches between the filter and its environment.The filter also has a great temperature stability, meaning that its characteristic will remain constant regardless of the changes in temperature. This is due to the filter’s proprietary design which makes it less sensitive to external environmental parameters. The B39431B3935H110 can be used in a wide variety of RF signal processing applications including WiMAX, WCDMA, base station front end, RF radio receiver, telecom systems, radar systems, etc. Its small size makes it ideal for use in portable device applications. Overall, the B39431B3935H110 is an excellent choice for designing duplexer applications with excellent performance. It has low insertion loss, small size, high return loss, good temperature stability, and countless other features that make it suitable for a wide variety of applications.

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