The BLM21PG220SN1 is a ferrite bead from Murata Electronics, designed for effective noise suppression in electronic circuits. This component is part of Murata's BLM series, known for its high impedance and reliable performance in suppressing high-frequency noise. It's a surface-mount device (SMD), making it suitable for automated assembly processes and high-density circuit boards.

Applications

• Noise suppression in mobile phones and smartphones
• Filtering power lines in digital devices
• Suppression of high-frequency noise in audio equipment
• EMI countermeasures in various electronic devices
• Decoupling in sensitive analog circuits

Features

• High impedance at high frequencies for effective noise suppression
• Small SMD package for space-saving design
• Excellent solderability for reliable mounting
• Wide operating temperature range suitable for diverse environments
• RoHS compliant, ensuring environmental friendliness

Benefits

• Improved signal integrity by reducing noise
• Enhanced device reliability by protecting circuits from EMI
• Reduced emissions, contributing to electromagnetic compatibility (EMC) compliance
• Simplified circuit design due to effective noise filtering
• Lower overall system cost through efficient noise suppression

Additional Details

The BLM21PG220SN1 has an impedance of 22 Ohms at 100 MHz. It is designed for signal line use. Its compact size (2.0mm x 1.2mm) allows for integration into space-constrained applications. This ferrite bead is particularly useful in applications where minimizing noise and maintaining signal integrity are critical, such as in portable devices, communication equipment, and digital electronics. The nickel barrier termination provides good solderability and resistance to soldering heat.

This component effectively attenuates unwanted high-frequency noise, preventing it from interfering with the desired signal. By implementing the BLM21PG220SN1, designers can improve the performance and reliability of their electronic devices, while also adhering to regulatory requirements for electromagnetic compatibility.