RSF-748.500-39000-1109-TR

Overview

The RSF-748.500-39000-1109-TR is a Surface Acoustic Wave (SAW) filter manufactured by Raltron Electronics, designed for radio frequency applications at a center frequency of 748.5 MHz. It features a bandwidth of 39 MHz and an insertion loss of 1.7 dB. The component operates with a maximum input voltage of 5 V and is housed in a compact 5-SMD, No Lead package with a maximum height of 0.65 mm. It is RoHS3 compliant and meets REACH SVHC standards.

Feature Summary

• Utilizes Surface Acoustic Wave technology for precise RF signal filtering
• Optimized for low insertion loss to maintain signal integrity
• Designed for surface mount assembly in space-constrained environments

Applications

• RF front-end modules requiring specific bandpass filtering
• Wireless communication systems operating near 748.5 MHz
• Mobile device receiver stages

Procurement Notes

Verify the complete part number including the -TR suffix to confirm tape and reel packaging configuration. Ensure compatibility with the target PCB footprint for the 5-SMD no lead package. Confirm RoHS3 compliance requirements match project specifications. Check moisture sensitivity level ratings for proper storage and handling procedures during assembly.

Selection Notes

Select this component when a narrow 39 MHz bandwidth is required at 748.5 MHz. Consider the 1.7 dB insertion loss impact on system noise figure. Evaluate the 5-pin SMD package dimensions against available board space. Verify that the 5 V input rating aligns with the circuit's power supply constraints.

Part Context

This SAW filter belongs to Raltron's RF filter portfolio, targeting specific frequency bands for wireless infrastructure and consumer electronics. The RSF series typically offers stable performance across temperature variations. The 748.5 MHz designation indicates its use in specialized communication bands distinct from common cellular or Wi-Fi frequencies.

Replacement Considerations

Consult official substitution guides for equivalent SAW filters with matching 748.5 MHz center frequency and 39 MHz bandwidth. Verify pinout compatibility for the 5-SMD package before replacing. Ensure electrical parameters such as insertion loss and voltage ratings meet or exceed original specifications.