LFB312G45SG2A509

Overview

The Murata LFB312G45SG2A509 is a surface-mount bandpass filter designed for signal conditioning applications. It operates at a center frequency of 2.45 GHz with a bandwidth of 50 MHz and features a 50 Ohm impedance. The component utilizes a 1206 (3216 Metric) package, measuring 3.2 mm in length and 1.6 mm in width. It exhibits an insertion loss of 2 dB and supports an operating temperature range from -40°C to +85°C. This device is RoHS compliant and is currently classified as obsolete.

Feature Summary

• Provides bandpass filtering functionality for RF signal conditioning
• Optimized for operation at 2.45 GHz with defined bandwidth characteristics
• Designed for surface-mount board mounting in compact electronic assemblies

Applications

• Wireless communication systems requiring 2.45 GHz signal filtering
• RFID reader and tag circuitry
• Bluetooth module interface stages

Procurement Notes

This component is officially designated as obsolete by the manufacturer. Procurement should focus on verifying the authenticity of existing stock through authorized channels. Buyers must confirm the specific lot date code and physical condition prior to acquisition. Due to the end-of-life status, long-term supply continuity cannot be guaranteed. Engineering teams should prioritize design transitions to active replacement parts to ensure future production stability and availability.

Selection Notes

Engineers selecting this part must account for its obsolete lifecycle status when planning for new designs. The 1206 footprint and 50 Ohm impedance are standard parameters that may influence PCB layout compatibility. Designers should evaluate whether the 2.45 GHz center frequency and 50 MHz bandwidth meet specific system requirements. Given the discontinuation, alternative components with similar electrical specifications and active status should be identified to mitigate supply chain risks for ongoing or future manufacturing projects.

Part Context

The LFB312G45SG2A509 belongs to Murata's LFB series of surface-mount bandpass filters. These components are engineered for high-frequency signal processing tasks within compact form factors. The 1206 package size allows for dense PCB integration while maintaining necessary thermal and electrical performance standards for consumer and industrial electronics applications.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.