DPX202170DT-4149A1

RF Multiplexers Overview

The DPX202170DT-4149A1 is a multilayer RF diplexer manufactured by TDK Corporation, designed for surface-mount integration in compact electronic systems. It operates with a low-frequency pass band ranging from 824 MHz to 960 MHz and a high-frequency pass band spanning 1.71 GHz to 2.17 GHz. The component utilizes a 0805 (2012 Metric) package footprint, occupying six PCB pads. Electrical performance includes minimum attenuation of 15.00 dB for the low band and 18.00 dB for the high band, with maximum attenuation limits at 20.00 dB and 23.00 dB respectively. Return loss specifications are rated at 20.0 dB for the low band and 14.0 dB for the high band.

RF Multiplexers Feature Summary

• Multilayer construction enables passive signal separation between distinct frequency bands without active power requirements.
• Surface-mount design facilitates automated assembly and integration into space-constrained printed circuit boards.
• Dual-band filtering capability isolates low-band and high-band signals to prevent interference in transceiver architectures.

RF Multiplexers Applications

• Wireless communication devices requiring simultaneous transmission and reception on separate frequency bands
• Mobile terminal hardware utilizing GSM/CDMA or LTE frequency allocations
• RF front-end modules in telecommunications equipment

RF Multiplexers Procurement Notes

Verify that the specific part number matches the required frequency bands and attenuation specifications for the target application. Confirm the 0805 package dimensions align with the PCB layout constraints. Ensure compatibility with standard reflow soldering profiles suitable for multilayer ceramic components. Check current product status as availability may vary across distribution channels.

RF Multiplexers Selection Notes

Select this component when a compact, passive solution is needed to separate signals within the 824–960 MHz and 1.71–2.17 GHz ranges. Consider the return loss characteristics to ensure impedance matching meets system requirements. Evaluate the physical size against available board space, noting the six-pad footprint. Assess thermal management needs based on the expected power handling in the specific circuit topology.

RF Multiplexers Part Context

This device belongs to TDK's series of RF multiplexers, specifically designed for general electronic and telecommunications equipment. It represents a passive filtering solution within the broader portfolio of RF components offered by the manufacturer. The product is categorized under diplexers, distinguishing it from filters or duplexers by its specific two-port separation function.

RF Multiplexers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official TDK resources for cross-reference data or verify if alternative models within the same series meet the specific electrical and mechanical requirements.