CET Inductors
An inductor is a passive electronic component which is capable of storing electrical energy in the form of magnetic energy. Basically, it uses a conductor that is wound into a coil, and when electricity flows into the coil from the left to the right, this will generate a magnetic field in the clockwise direction.
The more turns around the core an inductor may have, the greater the inductance that is generated. A higher inductance is also generated by increasing the cross-sectional area of the inductor or by changing the core of the inductor.
The lines of magnetic flux generated “bump” into each other due to the winding configuration and as such they act to slow each other down. The faster they bump into each other the lesser the increase made over the period of the applied voltage. The action of slowing, or choking, the field lines with and against each other in turn slows the rate of change in current through the inductor.
We offer a full line of inductors here at CET in numerous form factors. Everything from low frequency to high frequency, low inductance to high inductance and low current to high current inductors we can do for you!

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Have questions? Please give us a call at 603-894-6100
Passive Electronic Component by CET Technology: Custom Inductor & Transformer Solutions
What is a Passive Electronic Component?
Electronic devices that don’t require power are passive electronic parts. Transistors and integrated circuits can increase signals, whereas passive elements can’t. They switch voltage and current via inductance, capacitance, or resistance.
Inactive components include inductors, capacitors, and resistors. Inductor stores energy, filters signals, and controls voltage, making it crucial. It’s crucial to power electronics and high-performance circuits.
How Inductor Components Function in Circuits
When current runs through an inductor, the energy is stored in a magnetic field. Inductors are passive electronic parts that are wound around a coil. A few rules guide their behaviours:
Making a magnetic field: As current travels through the coil, a magnetic field forms.
Energy Storage: This magnetic field saves electricity until the current drops. Energy is returned to the circuit when the current lowers.
Electromotive Force (EMF): When the current changes, a generated voltage goes against it, which keeps the flow of current steady.
Because they can handle quick changes in current, inductors are useful for getting rid of noise, making signals smooth, and making sure that circuits work properly.
Types of Passive Electronic Components: Inductor Variants
CET Technology develops and makes a lot of different kinds of inductors for different uses, such as:
Toroidal Inductors: Toroidal inductors are small, effective, and great for reducing electromagnetic interference (EMI).
Air Core Inductors: These are high-frequency inductors that don’t have magnetic cores and are used in communication and RF systems.
Choke inductors: These are made to stop high-frequency AC signals but let DC or low-frequency currents flow through.
Power Factor Correction (PFC) Inductors: These make energy systems more efficient and improve the quality of the power they use.
Bobbin Core Inductors: These are standard and affordable for many electrical uses.
For each type of inductor, precise winding methods, optimal materials, and shape factors that meet customer needs are used in the design process.
Applications of Inductor Components in Electronics
Inductor components are used in many different types of electrical systems as passive parts.
Energy Storage: Making sure that the flow of energy stays steady in DC-DC converters and switching controllers.
Filtering: Getting rid of unwanted high-frequency signals and lowering ripple in power sources.
Noise Reduction: lowering EMI and making sure that sensitive devices can send signals smoothly.
Power Supplies: Power supplies help control voltage in medical, industrial, and household electronics.
Renewable Energy Systems: Making solar inverters and wind turbine controls work better.
Custom Transformers and Inductors from CET
CET Technology specializes in making custom transformers and inductors that are exactly what you need in terms of electrical, mechanical, and heat requirements.
Customized inductance, current ratings, and core materials are part of our method.
Design choices for both high-frequency and low-frequency.
Thorough testing and development to make sure quality
Small and effective options for systems with limited space
CET provides passive electronic component that gives you the best performance, durability, and cost-effectiveness by focusing on your application.
Custom Transformers and Inductors from CET
People in businesses that need precision and dependability trust our inductor and transformer solutions:
Automotive: For electric cars and hybrid systems, power technology and energy storage are important.
Aerospace & Defense: Inductors that are small, reliable, and lightweight are used in electronics and mission-critical systems in aerospace and defense.
Medical Equipment: Low-noise parts for imaging, diagnostic, and patient tracking devices are used in medical equipment.
Telecommunications: High-frequency inductors to block signals and keep power levels fixed.
Industrial Automation: Motor drives, robots, and control systems that use less energy.
CET Technology offers passive electronic parts that improve efficiency, reliability, and innovation across many industries. They do this by combining engineering knowledge, improved manufacturing, and customer-focused solutions. CET is the company you can trust to help you build better power systems, whether you need standard designs or inductors and transformers that are made just for you.
Frequently Asked Questions.
Why are toroidal inductors preferred for low EMI applications?
Because their closed magnetic path contains the flux, resulting in very low external magnetic field (low radiation).
What is the difference between a common-mode choke and a differential inductor?
A common-mode choke blocks noise that is common on both lines, while allowing differential (useful) current to pass.
Why use an air-core inductor instead of a ferrite core inductor?
Air-core inductors are used when magnetic saturation and core losses must be avoided, especially at very high frequencies. Because they have no magnetic core material, they do not saturate and exhibit virtually zero core loss. However, they require more turns and typically have larger size and higher copper loss compared to ferrite-core inductors.
What is the primary function of a PFC inductor in a power supply?
To shape the input current waveform so it follows the input voltage, improving power factor and reducing harmonics.