The B9497 is a SAW (Surface Acoustic Wave) filter manufactured by EPCOS, now part of TDK Corporation. SAW filters are electronic components used to selectively filter specific frequencies in electronic circuits. They are commonly used in radio frequency (RF) applications where precise filtering is required.

Applications

• Mobile Communication Systems (e.g., GSM, CDMA, UMTS, LTE)
• Wireless Communication Devices (e.g., Wi-Fi, Bluetooth)
• Remote Control Systems
• GPS Receivers
• Satellite Communication Systems

Features

• High Selectivity: Provides sharp and precise filtering of specific frequencies.
• Low Insertion Loss: Minimizes signal attenuation within the passband.
• Small Size: Compact design for integration into space-constrained applications.
• Stable Performance: Offers consistent performance over a wide temperature range.
• RoHS Compliant: Complies with RoHS (Restriction of Hazardous Substances) directives.

Benefits

• Improved Signal Quality: Reduces unwanted noise and interference, improving signal clarity.
• Enhanced System Performance: Enables better performance in wireless communication systems by isolating desired signals.
• Compact Design: Allows for smaller and more portable electronic devices.
• Reliable Operation: Ensures stable and consistent performance over time.

Additional Details

SAW filters like the B9497 utilize the piezoelectric effect to convert electrical signals into mechanical waves on the surface of a piezoelectric substrate. These waves are then converted back into electrical signals at the output. The filter's characteristics, such as center frequency, bandwidth, and insertion loss, are determined by the design of the interdigital transducers (IDTs) on the substrate. Exact specifications will vary based on the particular variant of this part number.