BLM18AG221SN1D

The BLM18AG221SN1D is a type of ferrite bead manufactured by Murata Electronics, designed primarily for use in electronic circuits to suppress high-frequency noise. Here’s a detailed description of its features and specifications:

General Description:

• Type: Ferrite Bead
• Series: BLM18
• Manufacturer: Murata Electronics
• Part Number: BLM18AG221SN1D

Physical Characteristics:

• Package Size: The BLM18 series typically comes in a compact 0603 (EIA 0201) package size, which measures approximately 1.6 mm x 0.8 mm.
• Material: The ferrite material used in the bead is designed to provide effective impedance at high frequencies while maintaining low DC resistance.
• Color: The component usually has a dark brown or black appearance, typical of ferrite materials.

Electrical Specifications:

• Impedance: The BLM18AG221SN1D has an impedance of 220 ohms at a frequency of 100 MHz, making it effective for filtering out unwanted high-frequency noise in various applications.
• Rated Current: It can handle a rated current of up to 300 mA, which is suitable for many low to medium power applications.
• DC Resistance (DCR): The DC resistance is typically low, around 0.1 ohms, which minimizes power loss in the circuit.
• Operating Temperature Range: The component is designed to operate within a temperature range of -55°C to +125°C, making it suitable for a variety of environments.

Applications:

• Noise Suppression: The primary application of the BLM18AG221SN1D is in noise suppression for power lines and signal lines in electronic devices.
• Consumer Electronics: It is commonly used in smartphones, tablets, and other consumer electronics to improve signal integrity and reduce electromagnetic interference (EMI).
• Automotive: The component can also be found in automotive applications, where it helps to ensure reliable operation of electronic systems in the presence of noise.

Compliance and Standards:

• RoHS Compliant: The BLM18AG221SN1D is compliant with the Restriction of Hazardous Substances (RoHS) directive, ensuring that it is free from certain hazardous materials.
• AEC-Q200 Qualified: This part may also meet automotive standards, making it suitable for use in automotive applications.

Summary:

The BLM18AG221SN1D from Murata Electronics is a compact, high-performance ferrite bead designed for effective noise suppression in a variety of electronic applications. Its combination of high impedance at high frequencies, low DC resistance, and robust operating temperature range makes it a versatile choice for engineers looking to enhance the performance and reliability of their electronic designs.