BLM21BD152SN1D

The BLM21BD152SN1D 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: BLM21
• Part Number: BLM21BD152SN1D

Physical Characteristics:

• Package Size: The component typically comes in a compact 0805 (2.0mm x 1.25mm) surface-mount package, making it suitable for space-constrained applications.
• Material: The ferrite material used in the bead is designed to provide effective impedance at high frequencies, which helps in noise suppression.
• Color: The bead usually has a dark color, often black or dark brown, which is typical for ferrite components.

Electrical Specifications:

• Impedance: The BLM21BD152SN1D has a nominal impedance of 1500 ohms at a frequency of 100 MHz, making it effective for filtering out high-frequency noise.
• Rated Current: It can handle a rated current of up to 500 mA, which allows it to be used in various applications without overheating or degrading performance.
• DC Resistance (DCR): The DC resistance is typically low, around 0.15 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, ensuring reliability in various environmental conditions.

Applications:

• Use Cases: The BLM21BD152SN1D is commonly used in power supply circuits, RF applications, and digital circuits where noise reduction is critical. It is suitable for applications in consumer electronics, automotive systems, and telecommunications.
• Noise Suppression: It effectively suppresses electromagnetic interference (EMI) and radio frequency interference (RFI), enhancing the performance and stability of electronic devices.

Compliance and Standards:

• RoHS Compliant: The component is compliant with the Restriction of Hazardous Substances (RoHS) directive, ensuring it is free from harmful substances and environmentally friendly.

Summary:

The BLM21BD152SN1D from Murata Electronics is a high-performance ferrite bead that provides excellent noise suppression capabilities in a compact package. Its high impedance at RF frequencies, low DC resistance, and robust construction make it an ideal choice for a wide range of electronic applications where signal integrity is paramount.