DPX205850DT-4055A1

RF Multiplexers Overview

The DPX205850DT-4055A1 is an LTCC diplexer manufactured by TDK Corporation, designed for RF signal conditioning. It operates with a low band of 700MHz to 1.99GHz and a high band of 2.4GHz to 5.85GHz. The device features a 0805 (2012 metric) surface mount package with six PCB pads. Electrical specifications include low band attenuation ranging from 13.00dB to 28.00dB and high band attenuation from 15.00dB to 21.00dB. Return loss is specified at 9.5dB for both frequency bands. The component maintains a standard 50 Ohm impedance and is RoHS3 compliant.

RF Multiplexers Feature Summary

• Utilizes Low Temperature Co-fired Ceramic (LTCC) technology for compact integration
• Provides simultaneous filtering for cellular and WLAN/Bluetooth frequency ranges
• Supports surface mount installation in small form factor packages

RF Multiplexers Applications

• Mobile phone baseband interfaces
• Wireless LAN connectivity modules
• Bluetooth radio transceivers

RF Multiplexers Procurement Notes

Verify the specific suffix A1 against the official datasheet to confirm pinout and electrical tolerances match the design requirements. Ensure the procurement channel provides valid traceability documentation. Confirm that the 0805 footprint aligns with the target PCB layout. Check for any recent manufacturing site changes noted in Product Change Notifications. Validate RoHS3 compliance status prior to final assembly approval.

RF Multiplexers Selection Notes

Select this component when dual-band isolation is required between sub-2GHz cellular spectrum and 2.4/5GHz ISM bands. The 0805 package size suits space-constrained mobile designs. Consider the specific attenuation profiles to ensure adequate interference rejection for the intended application environment. Verify thermal management capabilities within the operating temperature range during system integration.

RF Multiplexers Part Context

This part belongs to the TDK DPX series of RF multiplexers. The series utilizes LTCC construction to achieve high performance in miniature packages. These components are engineered for wireless connectivity applications requiring efficient signal separation. The DPX205850DT-4055A1 specifically addresses the needs of devices supporting multiple wireless standards simultaneously.

RF Multiplexers Replacement Considerations

DPX205850DT-9043B1BR is listed as a manufacturer recommended alternative. Verify frequency band alignment and package compatibility before substitution. Note that the alternative may have different attenuation characteristics or pin configurations. Consult official replacement lists for current availability and design-in status.