SQ20-1745K6SUA1

RF Multiplexers Overview

The SQ20-1745K6SUA1 is a SAW quadplexer manufactured by KYOCERA AVX, designed for signal conditioning in wireless communication systems. It operates across four distinct frequency bands: 1.695 GHz to 1.709 GHz, 2.11 GHz to 2.199 GHz, 1.7102 GHz to 1.7799 GHz, and 1.8503 GHz. The component supports Band 25, 66, and 70 configurations with unbalanced port architecture. It features an insertion loss of 2.2 dB and 2.9 dB depending on the specific band operation. The device is housed in a 5-SMD, No Lead package and is classified as moisture sensitive.

RF Multiplexers Feature Summary

• Integrates four distinct RF frequency paths into a single compact surface-mount package
• Supports LTE Band 25, Band 66, and Band 70 operations simultaneously
• Utilizes Surface Acoustic Wave (SAW) technology for efficient signal filtering
• Designed for unbalanced port configuration in mobile communication modules

RF Multiplexers Applications

• Smartphone and tablet PC wireless communication modules
• LTE-enabled wearable devices requiring multi-band support
• Industrial equipment utilizing cellular connectivity
• Automotive infotainment and safety systems with telematics capabilities

RF Multiplexers Procurement Notes

Verify that the specific order matches the exact suffix K6SUA1 to ensure correct frequency alignment for Bands 25, 66, and 70. Confirm moisture sensitivity handling requirements during storage and assembly. Check for RoHS compliance documentation. Ensure the 5-SMD no-lead package footprint aligns with the PCB design. Validate insertion loss specifications against system link budget requirements before finalizing procurement.

RF Multiplexers Selection Notes

Select this component when designing for multi-band LTE applications requiring integration of Bands 25, 66, and 70. Consider the 5-SMD no-lead package for space-constrained designs. Evaluate the 2.2 dB and 2.9 dB insertion loss values against receiver sensitivity needs. Ensure the unbalanced port topology matches the existing RF front-end architecture. Verify compatibility with standard SMT reflow processes given the moisture sensitivity classification.

RF Multiplexers Part Context

This part belongs to the KYOCERA AVX SAW Quadplexer series, which provides integrated filtering solutions for complex RF front-ends. These components consolidate multiple filters into a single device to reduce board space and simplify assembly. The SQ20 series specifically targets modern cellular standards requiring simultaneous transmission and reception across diverse global bands. This integration helps minimize signal interference and improves overall system performance in compact electronic devices.

RF Multiplexers Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Direct replacement requires matching the exact frequency ranges and package dimensions. Consult KYOCERA AVX technical support for equivalent parts if this specific model is discontinued or unavailable. Ensure any alternative maintains the same unbalanced port configuration and SAW technology characteristics.