LDB21869M20C-001

Balun Overview

The LDB21869M20C-001 is a multi-layer hybrid balun manufactured by Murata Electronics, designed for signal conditioning applications. It operates within a frequency range of 824 MHz to 915 MHz, centered around 869 MHz. The component provides impedance transformation between unbalanced and balanced ports, specified as 50 Ohms and 200 Ohms respectively. It features a maximum insertion loss of 1.3 dB. The device is housed in an 0805 (2012 metric) surface-mount package and supports board mounting. It functions reliably within a temperature range of -40°C to +85°C.

Balun Feature Summary

• Multi-layer hybrid construction for compact integration
• Balanced-to-unbalanced signal conversion capability
• Surface-mount design suitable for automated assembly

Balun Applications

• RF front-end modules requiring impedance matching
• Wireless communication systems operating in the 800-900 MHz band
• Signal conditioning circuits for balanced line interfaces

Balun Procurement Notes

Verify component status carefully as this part is listed as obsolete in major distributor catalogs. Confirm availability through authorized channels or secondary markets if production continuity is required. Ensure datasheet specifications match current design requirements before procurement. Check for RoHS compliance documentation if environmental regulations apply to the end product.

Balun Selection Notes

Select this component when a 50-ohm to 200-ohm impedance transformation is needed within the 824-915 MHz range. The 0805 package size suits space-constrained designs. Consider the 1.3 dB insertion loss limit for power budget calculations. Verify thermal stability requirements against the -40°C to +85°C operating range. Evaluate alternative components only if this specific impedance ratio or frequency band is critical.

Balun Part Context

This balun belongs to Murata's LDB series of multi-layer hybrid baluns. These components are engineered for RF signal integrity in compact form factors. The LDB21869M20C-001 specifically targets applications requiring precise impedance balancing between standard 50-ohm transmission lines and higher-impedance balanced circuits.

Balun Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Consult Murata Electronics directly for potential obsolescence management strategies or equivalent replacements with similar electrical characteristics.