The B39181-B4955-H310 is a surface acoustic wave (SAW) filter manufactured by EPCOS (now TDK). SAW filters are electronic components used to selectively filter signals of specific frequencies in radio frequency (RF) applications. They are commonly used in wireless communication systems.

Applications

• RF front-end filtering in mobile phones.
• Intermediate frequency (IF) filtering in receivers.
• Filtering in wireless communication systems (e.g., Wi-Fi, Bluetooth).
• Radar systems.
• Remote control systems.

Features

• Center Frequency: Designed for a specific center frequency around 1.8 GHz (approximate based on typical SAW filter usage).
• Low Insertion Loss: Minimizes signal attenuation in the passband.
• High Attenuation: Provides high attenuation of unwanted signals outside the passband.
• Small Size: Compact surface mount package.
• Surface Mount Technology (SMT): Suitable for automated assembly.

Benefits

• Improved Signal Quality: Selectively filters desired signals and rejects unwanted noise.
• Enhanced Receiver Sensitivity: Low insertion loss improves receiver sensitivity.
• Simplified Circuit Design: Provides a compact filtering solution.
• Easy Assembly: Surface mount design facilitates automated manufacturing processes.

Technical Specifications

Specific technical specifications depend heavily on the precise frequency band and application. However, typical parameters include:

Center Frequency: Approximately 1.8 GHz (exact value varies). Bandwidth: Specified bandwidth around the center frequency. Insertion Loss: Measured in dB (decibels). Attenuation: Measured in dB at specific frequencies outside the passband. Impedance: Typically 50 ohms. Package Style: Surface Mount Device (SMD). Operating Temperature: -40°C to +85°C (typical range).

The B39181-B4955-H310 SAW filter is a critical component in RF systems, ensuring signal quality and performance. Its compact size and high selectivity make it suitable for various wireless communication applications.