DPX202690DT-4049A2

RF Multiplexers Overview

The DPX202690DT-4049A2 is a surface-mount RF diplexer manufactured by TDK Corporation, designed for signal conditioning in wireless communication systems. It operates across two distinct frequency bands: a low band ranging from 704 MHz to 960 MHz and a high band spanning 1.71 GHz to 2.69 GHz. The component utilizes a compact 0805 (2012 Metric) package with six printed circuit board pads, measuring 2.0 mm in length, 1.25 mm in width, and 0.9 mm in height. Key electrical specifications include a maximum low-band insertion loss of 0.3 dB and a maximum high-band insertion loss of 1.2 dB. The device features an echo loss of 17.9 dB for the low band and 8.8 dB for the high band. It supports a standard operating temperature range from -40°C to +85°C and complies with RoHS3 standards.

RF Multiplexers Feature Summary

• Dual-band operation supporting LTE and cellular frequency allocations
• Compact 0805 surface-mount footprint for space-constrained designs
• Low insertion loss characteristics for efficient signal transmission
• High reliability under extreme industrial temperature conditions

RF Multiplexers Applications

• LTE Cat 4/5/6 mobile handsets
• IoT modules requiring dual-band connectivity
• Wireless communication base station front-ends
• Smartphone RF front-end modules

RF Multiplexers Procurement Notes

Verify the specific ordering suffix to ensure correct frequency alignment and performance parameters. Confirm that the procurement channel provides original manufacturer documentation to validate authenticity. Check for any recent Product Change Notices or End-of-Life announcements, as this part may have specific lifecycle statuses. Ensure storage conditions comply with Moisture Sensitivity Level 1 requirements to maintain component integrity prior to assembly.

RF Multiplexers Selection Notes

Select this component when designing circuits requiring simultaneous reception and transmission in the 700MHz and 1.7GHz+ ranges. Evaluate the 0.3dB low-band and 1.2dB high-band insertion losses against system link budget requirements. Consider the 0805 package dimensions for PCB layout constraints. Verify compatibility with the target application's operating temperature range of -40°C to +85°C. Compare echo loss specifications to ensure adequate isolation between bands for the specific radio architecture.

RF Multiplexers Part Context

This diplexer belongs to TDK's DPX series of RF multiplexers, which are widely used in modern mobile devices. The series offers various configurations tailored to different regional frequency allocations. As a passive component, it integrates SAW technology to filter and combine signals. It serves as a critical interface between the antenna and the transceiver, enabling efficient spectrum utilization in crowded wireless environments.

RF Multiplexers Replacement Considerations

DPX202700DT-4062A1 is listed as a manufacturer-recommended substitute. Verify frequency band overlap and insertion loss specifications before swapping. DPX202700DT-4162A1 covers similar bands but has different attenuation characteristics. Cross-reference datasheets to ensure pinout and thermal compatibility.