RSF-780.000-44500-1109-TR

Overview

The RSF-780.000-44500-1109-TR is a Surface Acoustic Wave (SAW) bandpass filter manufactured by Raltron Electronics, designed for RF applications at a center frequency of 780 MHz. It features a bandwidth of 44.5 MHz and operates within a temperature range of -30°C to +85°C. The component utilizes a 5-SMD, no-lead package with maximum dimensions of 1.1 x 0.9 mm and a height of 0.021 inches (0.55 mm). Insertion loss specifications vary between 1.6 dB and 1.7 dB depending on the specific datasheet version.

Feature Summary

• Miniature surface acoustic wave construction optimized for space-constrained designs
• Bandpass filtering capability centered at 780 MHz with defined bandwidth characteristics
• Surface mount compatibility via leadless SMD package configuration

Applications

• LTE wireless communication systems
• Smartphone RF front-end modules
• General purpose RF signal processing

Procurement Notes

Verify the exact insertion loss value against the current manufacturer datasheet, as sources indicate variations between 1.6 dB and 1.7 dB. Confirm package availability in tape-and-reel format if automated assembly is required. Ensure the operating temperature range meets system requirements given the specified -30°C to +85°C limit.

Selection Notes

Select this component when a compact SAW filter is required for 780 MHz LTE bands. Consider the 5-SMD no-lead footprint for PCB layout constraints. Evaluate thermal performance within the specified industrial temperature range. Compare insertion loss specifications across different supplier datasheets to ensure compliance with link budget requirements.

Part Context

This part belongs to Raltron's extensive family of SAW filters, which are widely utilized in mobile device applications. The RSF series typically offers high selectivity and low insertion loss. This specific model targets the 780 MHz frequency range, aligning with common LTE spectrum allocations used in global telecommunications infrastructure and handheld devices.

Replacement Considerations

Consult official substitution lists for compatible alternatives. Verify that any replacement maintains the 780 MHz center frequency and 44.5 MHz bandwidth. Ensure pinout compatibility with the 5-SMD no-lead package to avoid rework.