The T1550-A120-A262 is a SAW (Surface Acoustic Wave) filter manufactured by EPCOS (TDK). These filters are widely used in radio frequency (RF) applications to selectively pass or reject signals within a specific frequency range. SAW filters utilize the piezoelectric effect of materials like quartz or lithium niobate to create acoustic waves on the surface of the substrate. These waves interact with metallic structures patterned on the surface to achieve the desired filtering characteristics.

Applications

• Mobile Communication Systems: Used in cellular base stations and mobile devices to filter signals in the transmit and receive paths.
• Wireless Communication Devices: Employed in Wi-Fi routers, Bluetooth devices, and other wireless systems to improve signal quality and reduce interference.
• Satellite Communication Systems: Integrated into satellite receivers and transmitters for signal conditioning.
• Television Broadcasting: Utilized in television tuners and transmitters for channel selection and signal filtering.
• Automotive Electronics: Found in keyless entry systems, tire pressure monitoring systems (TPMS), and other automotive RF applications.

Features

• Sharp Selectivity: Provides excellent rejection of unwanted signals outside the passband.
• Low Insertion Loss: Minimizes signal attenuation within the desired frequency range.
• Small Size: Compact design allows for integration into space-constrained applications.
• High Reliability: Robust construction ensures stable performance over a wide range of operating conditions.
• Surface Mount Technology (SMT): Designed for automated assembly on printed circuit boards (PCBs).

Benefits

• Improved Signal Quality: By filtering out unwanted noise and interference, the T1550-A120-A262 enhances the clarity and reliability of communication signals.
• Enhanced System Performance: Sharp selectivity and low insertion loss contribute to improved overall system performance.
• Reduced Interference: Minimizes the impact of unwanted signals on adjacent channels or systems.
• Simplified Design: Integrated filtering functionality simplifies circuit design and reduces component count.
• Cost-Effective Solution: Provides a cost-effective solution for achieving high-performance filtering in RF applications.

Additional Details

While specific detailed specifications like center frequency, bandwidth, insertion loss, and rejection depend on the exact application and are often proprietary, SAW filters like the T1550-A120-A262 are generally characterized by their ability to provide precise filtering at relatively high frequencies (typically in the MHz to GHz range). The materials used in their construction, such as lithium tantalate or quartz, contribute to their stability and performance. The SMT package allows for efficient and reliable assembly onto circuit boards, making them suitable for high-volume production.