LFB215G12SG8A178

Overview

The LFB215G12SG8A178 is a ceramic band-pass filter manufactured by Murata Electronics. It operates with a center frequency of 5.12 GHz and features a bandwidth of 225 MHz. The component provides a nominal impedance of 50 ohms and supports a maximum power capacity of 1 watt. Designed for surface-mount applications, it utilizes an 0805 (2012 metric) package configuration with four pads. This device is engineered to manage RF signals within the 2400 MHz to 5950 MHz range.

Feature Summary

• Provides selective frequency filtering via a defined center frequency and bandwidth
• Maintains signal integrity through standardized 50-ohm nominal impedance
• Supports high-power RF transmission up to 1 watt capacity
• Enables compact circuit integration using a small surface-mount footprint

Applications

• Wireless communication systems requiring specific band selection
• RF front-end modules in mobile devices
• Industrial, scientific, and medical (ISM) radio equipment
• Satellite communication transceivers

Procurement Notes

Verify the exact part number against official Murata documentation before procurement. Confirm that the 0805 package dimensions align with your PCB layout requirements. Ensure compatibility with your assembly process regarding thermal profiles. Check current availability status as components may be subject to obsolescence notices from the manufacturer.

Selection Notes

Select this component when a precise 5.12 GHz center frequency is required for signal conditioning. The 225 MHz bandwidth suits applications needing narrowband rejection of out-of-band noise. Consider the 1W power rating for moderate power handling needs. The SMD form factor is suitable for automated pick-and-place manufacturing processes.

Part Context

This component belongs to Murata's line of ceramic filters designed for RF applications. These filters utilize ceramic resonator technology to achieve sharp roll-off characteristics. They are commonly used in wireless infrastructure and consumer electronics where size constraints and performance stability are critical design factors.

Replacement Considerations

Check for direct substitutes with identical electrical specifications if this part is discontinued. Verify that any replacement maintains the same 5.12 GHz center frequency and 225 MHz bandwidth. Ensure the alternative component fits the same 0805 package outline to avoid PCB redesign.