The BLM18PG471SN1 is a small, surface-mount ferrite bead from Murata Electronics. It is designed to suppress high-frequency noise in electronic circuits. These beads are widely used to filter unwanted electromagnetic interference (EMI) and radio-frequency interference (RFI) from power lines and signal paths.

Applications

• Noise suppression in smartphones and mobile devices: Filtering noise in power and signal lines to ensure stable performance.
• EMI filtering in computers and peripherals: Reducing electromagnetic interference to meet regulatory standards.
• Power line filtering in consumer electronics: Suppressing noise in power supplies to enhance the reliability of devices.
• Signal line filtering in audio and video equipment: Improving signal quality by reducing noise.
• Noise reduction in automotive electronics: Filtering noise in vehicle electronic systems for smooth operation.

Features

• Compact size: Its small form factor allows for placement in densely populated circuit boards.
• High impedance: Provides significant impedance at high frequencies to effectively suppress noise.
• Surface-mount design: Suitable for automated assembly processes.
• Wide operating temperature range: Can operate reliably in various environmental conditions.
• RoHS compliant: Compliant with environmental regulations.

Benefits

• Improved signal integrity: Reduces noise to enhance the clarity and reliability of signals.
• Enhanced device performance: Minimizes interference, leading to more stable and efficient operation.
• Reduced EMI/RFI emissions: Helps meet regulatory requirements for electromagnetic compatibility.
• Simplified circuit design: Easier noise suppression implementation with minimal impact on board space.
• Increased reliability: Protects sensitive components from noise-related damage.

Technical Specifications

The BLM18PG471SN1 has an impedance of 470 ohms at 100 MHz. It has a rated current of 500 mA and a DC resistance of 0.3 ohms. The operating temperature range is -55°C to +125°C. It comes in an 0603 package size.