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Product Detailed Parameters
- Description：FILTER CER BANDPASS 2.49GHZ SMD
- Series：SG
- Mfr：Murata Electronics
- Package：Tape & Reel (TR)
- Frequency：2.49GHz Center
- Impedance：-
- Bandwidth：195 MHz
- Insertion Loss：2.4dB
- Filter Type：Band Pass
- Mounting Type：Surface Mount
- Package / Case：0805 (2012 Metric), 4 PC Pad
- Size / Dimension：0.079" L x 0.049" W (2.00mm x 1.25mm)
- Height (Max)：0.041" (1.05mm)
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Overview
The Murata LFB212G49SG8B830 is a surface-mount ceramic bandpass filter designed for EMI/RFI suppression. It features a center frequency of 2490 MHz and a bandwidth of 195 MHz. The device utilizes an 0805 (2012 Metric) package with a 4-pad configuration. Key electrical specifications include a maximum insertion loss of 2.4 dB at the center frequency. The component is RoHS3 compliant and operates as a passive filter for signal integrity management in high-frequency circuits.
Feature Summary
- Provides effective electromagnetic interference and radio frequency interference suppression
- Utilizes ceramic technology for stable bandpass filtering characteristics
- Designed for surface-mount assembly to support compact PCB layouts
Applications
- EMI/RFI suppression modules
- Power line filtering applications
- Wireless communication devices requiring 2.4 GHz band filtering
Procurement Notes
Verify the specific suffix B830 against official Murata documentation to confirm exact tolerance and packaging details. Ensure compatibility with standard 0805 footprints during PCB design. Cross-reference datasheet revision dates to validate current manufacturing status and compliance certifications before finalizing procurement orders.
Selection Notes
Select this component when a 2.49 GHz center frequency with 195 MHz bandwidth is required. The low insertion loss of 2.4 dB makes it suitable for sensitive RF paths. Consider the 0805 package size for space-constrained designs. Verify thermal and mechanical requirements align with the surface-mount construction.
Part Context
This part belongs to Murata's LFB series of ceramic filters, which are engineered for high-performance RF applications. The series offers various center frequencies and bandwidths tailored for wireless standards. The LFB212G49SG8B830 specifically targets the 2.4 GHz ISM band, providing reliable filtering for modern electronic systems.
Replacement Considerations
Consult official Murata substitution guides for direct equivalents. Verify that any alternative maintains the 2.49 GHz center frequency and 195 MHz bandwidth. Ensure pinout compatibility with the 4-pad 0805 footprint to avoid redesign efforts.
