LDB21881M20C-001

Balun Overview

The Murata LDB21881M20C-001 is a multi-layer hybrid balun designed for RF signal conditioning. It operates within the 869 MHz to 894 MHz frequency range, centered at 881 MHz. The component provides impedance transformation between a nominal 50 Ω port and a 200 Ω port. Packaged in an 0805 (2012 Metric) surface-mount footprint, it supports applications requiring balanced-to-unbalanced conversion in compact wireless systems.

Balun Feature Summary

• Multi-layer hybrid construction for stable RF performance
• Impedance matching between 50 Ω and 200 Ω ports
• Compact 0805 surface-mount package design

Balun Applications

• RF transceiver circuits
• Wireless communication modules
• Signal conditioning networks

Balun Procurement Notes

Verify component authenticity through authorized distributors. Confirm RoHS compliance status via official documentation. Check lifecycle status as obsolete data may indicate limited availability or end-of-life conditions. Ensure storage and handling meet ESD protection standards during assembly.

Balun Selection Notes

Evaluate impedance requirements against system specifications. Consider operating frequency alignment with target bands. Assess physical space constraints relative to the 0805 package dimensions. Review thermal management needs for high-power applications.

Balun Part Context

This balun belongs to Murata's signal conditioning portfolio, specifically engineered for RF front-end integration. It addresses the need for balanced-to-unbalanced conversion in modern wireless devices where space efficiency and signal integrity are critical design parameters.

Balun Replacement Considerations

No public confirmed substitute part numbers are available. As the component is listed as obsolete, alternative solutions require careful impedance and frequency matching validation.