The B39192B8578P810S 5 is a SAW (Surface Acoustic Wave) filter manufactured by EPCOS (TDK). SAW filters are used in radio frequency (RF) applications to selectively pass or reject signals at specific frequencies. This particular filter is designed for specific wireless communication systems operating around 1.9 GHz.

Applications:

• Wireless communication systems
• Mobile phones (specifically band 39)
• Base stations
• RF transceivers
• Wireless data transmission

Features:

• Center Frequency: approximately 1910 MHz (specifically for band 39)
• Low insertion loss
• High attenuation of unwanted signals
• Small surface-mount package
• Excellent temperature stability

Benefits:

• Improved signal quality
• Reduced interference
• Increased data transmission reliability
• Compact design for space-constrained applications
• Stable performance over temperature variations

Technical Specifications:

The B39192B8578P810S 5 SAW filter is characterized by a center frequency around 1910 MHz. It is designed to operate within the frequency band 39 (1880-1920 MHz) which is commonly used for TD-SCDMA cellular communication. The insertion loss is typically low, usually less than 2.0 dB, minimizing signal attenuation within the passband. The filter provides high attenuation (rejection) of signals outside the passband, often exceeding 40 dB at specific frequencies to prevent interference from adjacent channels. It is constructed using piezoelectric materials deposited on a substrate, forming interdigital transducers that generate and detect surface acoustic waves.

The package is a small surface-mount device (SMD), suitable for automated assembly processes. The filter exhibits excellent temperature stability, with minimal variation in performance over a wide operating temperature range, typically from -40°C to +85°C. The impedance matching is optimized for 50 ohms to facilitate easy integration into RF circuits.

In summary, the EPCOS (TDK) B39192B8578P810S 5 SAW filter is a high-performance component designed for band 39 wireless communication systems. Its low insertion loss, high attenuation, and small size make it an excellent choice for applications where signal quality and space are critical.