BLM18KG121TN1D

The BLM18KG121TN1D 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: BLM18K
• Part Number: BLM18KG121TN1D
• Material: Ferrite material, which is effective in attenuating high-frequency noise.

Electrical Characteristics:

• Impedance: The BLM18KG121TN1D has a nominal impedance of 120 ohms at a frequency of 100 MHz. This characteristic makes it suitable for applications where high-frequency noise suppression is critical.
• Rated Current: The component can handle a rated current of up to 1.5 A, making it suitable for various power applications without overheating or degrading performance.
• DC Resistance (DCR): The DC resistance is typically low, around 0.1 ohms, which minimizes power loss in the circuit.

Physical Characteristics:

• Package Size: The component is housed in a compact 0603 (EIA) package size, which measures approximately 1.6 mm x 0.8 mm. This small footprint allows for easy integration into densely packed circuit boards.
• Height: The height of the component is typically around 0.8 mm, contributing to its low-profile design.
• Mounting Type: It is designed for surface mount technology (SMT), making it suitable for automated assembly processes.

Applications:

• Use Cases: The BLM18KG121TN1D is commonly used in a variety of electronic applications, including:
  • Power supply circuits
  • Signal lines in communication devices
  • Audio equipment to reduce noise
  • Consumer electronics such as smartphones and tablets
• Noise Suppression: It is particularly effective in suppressing electromagnetic interference (EMI) and radio frequency interference (RFI), ensuring cleaner signal integrity.

Compliance and Reliability:

• RoHS Compliant: The component adheres to RoHS (Restriction of Hazardous Substances) standards, ensuring it is free from harmful substances.
• Temperature Range: It operates effectively within a wide temperature range, typically from -55°C to +125°C, making it suitable for various environmental conditions.

Conclusion:

The BLM18KG121TN1D from Murata Electronics is a versatile and reliable ferrite bead that provides effective noise suppression in compact electronic designs. Its combination of high impedance, low DC resistance, and small size makes it an ideal choice for modern electronic applications where space and performance are critical.