DPX202170DT-4021A1

RF Multiplexers Overview

The DPX202170DT-4021A1 is an RF diplexer from TDK Corporation designed for surface-mount applications in the 0805 (2012 Metric) package. It operates with a low-frequency band of 830MHz to 885MHz and a high-frequency band of 1.92GHz to 2.17GHz. The component provides minimum attenuation of 15dB for the low band and 20dB for the high band, ensuring effective signal separation. Return loss specifications are 20dB for the low-frequency band and 14dB for the high-frequency band. This multilayer device integrates into compact radio frequency circuits.

RF Multiplexers Feature Summary

• Multilayer construction enables reliable signal separation between distinct frequency bands
• Compact 0805 surface-mount footprint supports automated assembly processes
• Integrated design reduces circuit board space requirements for RF front ends

RF Multiplexers Applications

• Wireless communication devices requiring dual-band signal filtering
• Mobile phone RF front-end modules
• IoT hardware utilizing multiple frequency standards

RF Multiplexers Procurement Notes

Verify the exact part number against official TDK documentation to ensure compatibility with specific frequency requirements. Confirm that the 0805 package dimensions align with the target PCB layout. Check datasheet specifications for insertion loss and return loss tolerances relevant to the application environment. Ensure supply chain sources provide genuine components to maintain signal integrity.

RF Multiplexers Selection Notes

Select this component when a compact solution is needed for separating signals around 860MHz and 2.05GHz. Evaluate the trade-off between the small 0805 size and the specified attenuation levels. Consider thermal management and soldering profiles compatible with lead-free processes. Compare performance metrics against alternative diplexers if wider bandwidths or different packages are required.

RF Multiplexers Part Context

This component belongs to TDK's DPX series of multilayer diplexers. These devices utilize advanced ceramic materials to achieve high performance in miniature packages. The series supports various frequency combinations tailored for modern wireless standards. TDK manufactures these components at global facilities to ensure consistent quality and reliability for electronic systems.

RF Multiplexers Replacement Considerations

DPX202170DT-4149A1 is a related model within the same series but features different frequency ranges (824MHz–960MHz / 1.71GHz–2.17GHz). Verify that the alternate part meets the specific 830MHz–885MHz and 1.92GHz–2.17GHz requirements before substitution.