LDB212G4020C-001

Balun Overview

The LDB212G4020C-001 is a chip multilayer hybrid balun manufactured by Murata Electronics, designed for RF signal conditioning applications. It operates within a frequency range of 2.3 GHz to 2.5 GHz and provides an impedance transformation between 50 ohms (unbalanced) and 200 ohms (balanced). The component utilizes a surface-mount technology (SMD/SMT) package in the 0805 (2012 metric) footprint. Key electrical specifications include a maximum insertion loss of 1.1 dB. The device supports a wide operating temperature range from -40°C to +85°C and complies with RoHS3 standards. It is classified under the LDB21 series and is currently marked as obsolete.

Balun Feature Summary

• Hybrid construction utilizing chip multilayer technology for compact integration
• Provides balanced-to-unbalanced signal conversion functionality
• Designed for surface mount board mounting processes

Balun Applications

• RF signal conditioning circuits
• Wireless communication modules
• Balanced-to-unbalanced transformer interfaces

Balun Procurement Notes

This component is officially discontinued and no longer in active manufacturing. Verification of availability should focus on surplus stock or authorized distributors holding remaining inventory. Potential design-in risks include long-term supply chain instability. Engineers must confirm end-of-life status through official manufacturer notifications or product change notices before finalizing procurement plans for production use.

Balun Selection Notes

Selection requires matching the specific 2.3 GHz to 2.5 GHz frequency band and the 50/200 Ohm impedance ratio. The 0805 package size dictates board space constraints. Designers must account for the -40°C to +85°C operational temperature limits. Due to the obsolete status, alternative components with similar hybrid balun characteristics and compatible impedance transformations should be evaluated for new designs.

Balun Part Context

The LDB212G4020C-001 belongs to the LDB21 series of passive signal conditioning components produced by Murata Electronics. This series focuses on RF hybrid baluns intended for wireless applications. The part represents a specialized solution for converting unbalanced signals to balanced signals within a defined microwave frequency range, fitting into the broader category of RF filters and signal integrity components.

Balun Replacement Considerations

LDB181G7FAAEA046 is identified as a confirmed substitute part number.