SF1141B

Series:	--
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Frequency - Center:	75MHz
Bandwidth:	12.7MHz
Insertion Loss:	12.5dB
Ratings:	--
Applications:	SDARS
Mounting Type:	Surface Mount
Package / Case:	10-SMD, No Lead
Height (Max):	0.079" (2.00mm)
Size / Dimension:	0.276" L x 0.197" W (7.00mm x 5.00mm)

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Introduction to SF1141B SAW Filter
SAW (Surface Acoustic Wave) filters are widely used in various electronics applications, due to their ability to avoid frequency interference. The SF1141B Surface Acoustic Wave (SAW) Filter is an example of a small form factor, adjustable-frequency filter used for this purpose. This article provides an extensive overview of the SF1141B SAW filter, including details on its application field and working principle.
Uses of the SF1141B SAW Filter
The SF1141B SAW filter is a low-profile filter designed for applications where size is a primary concern, such as in automotive and wireless communications technologies. It is particularly well-suited for eliminating mobile frequency interference and the issues it can cause in sound systems and other audio-based applications. Additionally, the SF1141B SAW filter is often used in cellular phone repeaters, low-power frequency navigation systems, and remote-controlled car receivers.
Working Principle of SF1141B SAW Filter
The SF1141B SAW filter works by passing input and output signals through a piezoelectric quartz substrate composed of a series of interleaved metal electrodes. This substrate produces an acoustic wave in response to input frequencies, which it filters out and passes on to the output. The filtering process is not only fast and highly efficient, but also reliable, as the size and thickness of the quartz substrate helps to ensure high accuracy.
Characteristics of SF1141B SAW Filter
The SF1141B SAW filter is well-known for its small form factor, adjustable frequency range, and exceptional ability to reduce interference. Its frequency range can be adjusted from 5 kHz to 21.4 kHz, and its small size allows it to be incorporated into a variety of applications that require space saving. Additionally, its multi-level filtering technology helps to reduce total harmonic distortion (THD) and ensure reliable signal quality.
Conclusion
In summary, the SF1141B SAW filter is a highly reliable, adjustable-frequency filter designed for applications where size is a primary concern. It has a wide application field, especially in audio-based technologies, and its small form factor allows it to be easily integrated into existing systems. Its unique working principle helps to ensure high-quality filtering and reduce interference, making it an excellent choice for a wide range of applications.

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