Overview

The EPCOS (TDK) B39941-B9461-P810-S05 is a Surface Acoustic Wave (SAW) filter used in Radio Frequency (RF) applications. These filters are crucial for selectively passing or rejecting signals within a specific frequency range, improving signal quality and preventing interference in various wireless communication systems.

Applications

• Mobile Phones: Filters for specific frequency bands used in cellular communication (e.g., GSM, CDMA, LTE).
• Wireless Networking: Used in Wi-Fi routers and access points to filter and improve signal reception.
• GPS Receivers: Employed to filter GPS signals, increasing the accuracy and reliability of location data.
• Satellite Communication: Used in satellite receivers and transmitters to filter signals.
• Cordless Phones: Filter signals for clear communication.

Features

• SAW Filter Technology: Utilizes surface acoustic waves for precise filtering.
• Low Insertion Loss: Minimizes signal attenuation within the desired frequency band.
• High Attenuation: Provides excellent suppression of unwanted signals outside the passband.
• Compact Size: Small form factor allows for integration in portable devices.
• Surface Mount Device (SMD): Designed for automated assembly on printed circuit boards.
• Stable Performance: Offers reliable performance over a wide range of temperatures.

Benefits

• Improved Signal Quality: Filters out noise and interference, resulting in clearer signals.
• Enhanced Receiver Sensitivity: Allows for the detection of weaker signals.
• Increased System Reliability: Reduces the likelihood of signal degradation and interference.
• Miniaturization: Enables the development of smaller and more compact wireless devices.
• Reduced Manufacturing Costs: Surface mount design facilitates automated assembly.
• Optimized Performance: Ensures optimal performance in wireless communication systems.

Additional Details

The key technical characteristics of the B39941-B9461-P810-S05 include its center frequency, bandwidth, insertion loss, and attenuation. Consult the EPCOS/TDK datasheet for specific values. These parameters are critical for selecting the appropriate filter for a given application. Proper soldering techniques are essential when mounting this SMD component. Handle with care, as SAW filters are sensitive to electrostatic discharge (ESD). The performance of SAW filters can be affected by temperature, so the operating temperature range is a key consideration. It is a passive component, and therefore, does not require external power.

The filter's functionality is achieved through the precise design and manufacturing of the piezoelectric substrate and the electrode patterns.