The B39931-B4040-Z810 V03 is a SAW (Surface Acoustic Wave) filter manufactured by EPCOS (TDK). These filters are essential components in radio frequency (RF) systems, designed to selectively pass desired signals while rejecting unwanted interference.

Applications:

• Mobile communication devices (e.g., smartphones, tablets): Used for filtering RF signals in cellular bands, ensuring clear communication.
• Wireless base stations: Employed to filter signals, enhancing network performance and capacity.
• Satellite communication systems: Integrated into receivers and transmitters for signal conditioning and noise reduction.
• RF modules and transceivers: Utilized in various wireless applications such as IoT devices, remote controls, and wireless sensors.
• Navigation systems (e.g., GPS, GNSS): Applied to filter signals, improving positioning accuracy and reliability.

Features:

• SAW filter technology: Offers high selectivity and low insertion loss for optimal RF signal processing.
• Compact size: Designed for integration into miniaturized electronic devices.
• High attenuation: Provides effective rejection of unwanted signals outside the passband.
• Low insertion loss: Minimizes signal power loss, ensuring efficient signal transmission.
• Stable performance: Delivers consistent performance across a wide range of operating temperatures and conditions.

Benefits:

• Improved signal quality: Filters out noise and interference, resulting in clearer and more reliable signals.
• Enhanced receiver sensitivity: Allows for the detection of weaker signals, improving communication range and reliability.
• Reduced interference: Minimizes the impact of unwanted signals on system performance, preventing signal degradation.
• Increased system reliability: Ensures stable and consistent performance under varying operating conditions.
• Optimized RF performance: Enables efficient and effective RF signal processing, improving overall system performance.

Additional Details:

SAW filters like the B39931-B4040-Z810 V03 use the piezoelectric effect to convert electrical signals into mechanical waves on the surface of a crystal substrate, and then back into electrical signals. This process allows for highly precise filtering characteristics. The filter's key parameters include center frequency, bandwidth, insertion loss, and attenuation. The V03 designation may indicate a specific version or revision of the filter with particular performance characteristics or manufacturing processes.