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Product Detailed Parameters
- Description：FILTER CER BAND PASS 2.45GHZ SMD
- Series：SG
- Mfr：Murata Electronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Frequency：2.45GHz Center
- Impedance：50Ohm
- Bandwidth：50 MHz
- Insertion Loss：1.5dB
- 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 LFB212G45SG8A127 is a surface-mount ceramic band-pass filter designed for RF applications. It operates at a center frequency of 2450 MHz with a bandwidth of 50 MHz. The component features a 50 Ohm impedance and an 0805 (2012 metric) package. Key electrical specifications include a maximum insertion loss of 1.5 dB to 2.6 dB depending on the specific test condition or variant data, and it supports an operating temperature range from -40°C to +85°C.
Feature Summary
- Utilizes ceramic technology for stable RF signal filtering in compact designs
- Provides precise band-pass characteristics centered at 2.45 GHz
- Engineered for surface-mount assembly in space-constrained PCB layouts
Applications
- Wireless LAN (WLAN) systems
- Bluetooth connectivity modules
- ISM band RF front-end circuits
Procurement Notes
Verify current availability status as this component is scheduled for obsolescence by the manufacturer. Confirm end-of-life notifications and transition plans before finalizing design-in decisions. Ensure compatibility with existing supply chain channels for remaining stock or approved alternatives.
Selection Notes
Select this component for applications requiring a 2.45 GHz band-pass filter with low insertion loss. Consider the 0805 footprint for board space constraints. Evaluate thermal performance within the specified -40°C to +85°C range. Check for newer Murata series replacements if long-term supply assurance is required due to discontinuation status.
Part Context
This part belongs to Murata's LFB series of ceramic filters, which are widely used in wireless communication devices. The LFB212G45SG8A127 specifically targets the 2.4 GHz ISM band, offering high Q-factor and sharp selectivity compared to LC-based solutions. It is commonly integrated into mobile phones, IoT devices, and wireless peripherals.
Replacement Considerations
Check for official Murata replacement part numbers listed in the product discontinuation notification. Verify pinout and electrical parameter equivalence before substituting.
