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Coils and Cores
Toroid Inductors
BNBN1A
Toroidal Inductors at Electronica Embajadores: Efficiency and Reliability for Your Circuits
Toroidal Chokes
Essential components for electromagnetic interference (EMI) filtering in electronic circuits.
What is a Toroidal Choke?
A toroidal choke is a passive component in the shape of a ring that stores energy in a magnetic field. Its closed design allows for greater efficiency and reduces losses, making it ideal for filtering unwanted signals such as electromagnetic interference (EMI).
Technical Characteristics
Inductance: Toroidal chokes come in inductances ranging from a few microhenries (µH) to several millihenries (mH), suitable for various applications.
Current: They can handle currents ranging from less than 1 A to over 10 A, depending on the specifications.
Core material: Toroidal chokes may have ferrite cores for high-frequency applications or nanocrystalline cores for better performance and EMI reduction.
Size: Their compact design makes them easy to integrate into small devices, perfect for applications requiring minimal space without compromising performance.
Common Applications
Power supplies: Toroidal chokes are used to smooth the output voltage and reduce noise.
Audio systems: Used in amplifiers and audio equipment to minimize interference.
Telecommunications: Essential for ensuring clean signals in RF and telecommunications equipment.
Home appliances: Found in products like microwaves and televisions to enhance performance and reduce interference.
Advantages of Toroidal Chokes
High efficiency: Toroidal chokes exhibit low losses, allowing for more efficient energy usage.
EMI reduction: Their design minimizes electromagnetic interference, improving device performance.
Compact design: Their closed shape allows for higher energy density in a reduced space.
Reliability: High-performance components with long-lasting reliability.
Selecting the Right Toroidal Choke
When selecting a toroidal choke for your application, it is important to consider the following factors:
Required inductance: Determine the required inductance based on the circuit specifications for proper filtering.
Maximum current: Ensure that the selected choke can handle the maximum current expected in the circuit without overheating.
Operating frequency: Verify that the toroidal choke is suitable for the operating frequency of the system.
Size: Consider the available space on your circuit board to ensure proper fitting of the choke.
