TA0659A

Overview

The TA0659A is a Surface Acoustic Wave (SAW) bandpass filter manufactured by TST. It operates at a center frequency of 868.3 MHz with a bandwidth of 1.5 MHz. The device features an insertion loss of 4.2 dB and is housed in an 8-SMD, no-lead package with dimensions of 3.0x3.0 mm.

Feature Summary

• Utilizes Surface Acoustic Wave technology for RF signal filtering
• Designed as a bandpass filter for specific frequency selection
• Constructed in a compact surface-mount package

Applications

• Wireless RF applications requiring 868.3 MHz operation
• ISM band communication systems
• RF front-end modules

Procurement Notes

Verify the manufacturer designation TST corresponds to Tai-Saw Technology Co. Ltd. when sourcing components. Confirm that the 8-SMD no-lead package matches the required footprint for PCB layout. Ensure the specified 868.3 MHz center frequency aligns with the target application's regulatory and technical requirements before procurement.

Selection Notes

Select this component for designs requiring a SAW filter at 868.3 MHz. The 1.5 MHz bandwidth defines the signal pass range. The 4.2 dB insertion loss impacts link budget calculations. The 3.0x3.0 mm SMD package dictates board space allocation. Verify compatibility with reflow soldering profiles suitable for leadless packages.

Part Context

This component belongs to the TST SAW filter product line, which includes various models for different RF frequencies. The TA0659A is specifically tuned for the 868.3 MHz region, distinguishing it from other variants like the TA0281A designed for 915 MHz or the TA1457A for 869.6 MHz within the same family.

Replacement Considerations

Potential substitutes include the TA1457A for 869.6 MHz applications if frequency tolerance allows. The TA0281A serves as an alternative for 915 MHz bands. Cross-reference datasheets to ensure pinout and electrical characteristics match the original design intent.