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Fixed Inductors

Category Introduction

An inductor, also known as a coil, choke, or reactor, is a passive two-terminal electrical component that stores energy in a magnetic field when electric current flows through it. When the current changes, the magnetic field induces a voltage in the conductor. The induced voltage has a polarity which opposes the change in current that created it. The unit of inductance is the Henry (H). Mounting options include surface, through-hole, and chassis.

Product List

1 Items
PDF Mfr Part # Quantity
Available		 UnitPrice RFQ Series Packaging Product StatusTypeMaterial - CoreInductanceToleranceCurrent Rating (Amps)Current - Saturation (Isat)ShieldingDC Resistance (DCR)Q @ FreqFrequency - Self ResonantRatingsOperating TemperatureInductance Frequency - TestFeaturesMounting TypePackage / CaseSupplier Device PackageSize / DimensionHeight - Seated (Max)
TCCH-80+
TCCH-80+
FIXED IND 4UH 200MA 100MOHM SMD
Mini-Circuits
 43 $4.96
Tape & Reel (TR) ActiveWirewound-4 µH-200 mA-Unshielded100mOhm----40°C ~ 85°C--Surface MountHorizontal, 4 PC PadHorizontal, 4 PC Pad0.150" L x 0.150" W (3.81mm x 3.81mm)0.150" (3.80mm)

About Fixed Inductors

What are Fixed Inductors?

Fixed Inductors

Fixed inductors are passive electronic components that store energy in a magnetic field when electrical current flows through them. They are characterized by having a fixed inductance value, meaning their ability to store energy does not change with varying conditions. The basic operating principle of a fixed inductor involves the creation of a magnetic field around a coil of wire when current passes through it. This magnetic field opposes changes in current, making fixed inductors essential for filtering, tuning, and energy storage applications in electronic circuits.

Types of Fixed Inductors

1. Air Core Inductors

Air core inductors use air as the core material, which means they have no solid core. They are typically used in high-frequency applications due to their low inductance and minimal core losses. Their simple construction makes them ideal for RF circuits and applications where minimal distortion is crucial.

2. Iron Core Inductors

Iron core inductors have a core made of iron or ferrite, which increases the inductance value by concentrating the magnetic field. These inductors are used in applications requiring higher inductance values, such as power supplies and audio equipment, due to their ability to handle higher currents and store more energy.

3. Ferrite Core Inductors

Ferrite core inductors use a ceramic compound of iron oxide as the core material. They are highly efficient at high frequencies and are commonly used in RF applications, transformers, and EMI suppression. Their high permeability allows for compact designs with high inductance values.

How to choose Fixed Inductors?

When selecting fixed inductors, consider the following key parameters:

  • Inductance Value: Choose based on the required energy storage and filtering needs of your circuit.
  • Current Rating: Ensure the inductor can handle the maximum current without overheating.
  • DC Resistance (DCR): Lower DCR values are preferable for efficiency, reducing power loss.
  • Frequency Range: Match the inductor to the operating frequency of your application to avoid performance issues.
  • Core Material: Select based on the application requirements for efficiency and size constraints.

Evaluate product quality by reviewing supplier specifications, certifications, and customer reviews. Consider environmental factors such as temperature and humidity, and ensure the inductor is suitable for the intended installation environment.

Applications of Fixed Inductors

1. Telecommunications

In telecommunications, fixed inductors are used in filters and tuning circuits to manage signal frequencies and reduce interference. They help maintain signal integrity in devices such as radios, mobile phones, and satellite communication systems.

2. Power Electronics

Fixed inductors are crucial in power electronics for energy storage and filtering in power supplies and converters. They smooth out voltage fluctuations and reduce electromagnetic interference in devices like inverters and battery chargers.

3. Automotive Industry

In the automotive sector, fixed inductors are used in electronic control units (ECUs) and infotainment systems. They help manage power distribution and reduce noise in vehicle electronics, ensuring reliable operation of critical systems.

4. Consumer Electronics

Consumer electronics, such as televisions, audio systems, and computers, utilize fixed inductors for filtering and noise suppression. They ensure clean power delivery and enhance the performance of audio and video components.

5. Industrial Automation

In industrial automation, fixed inductors are used in motor drives and control systems. They help regulate power flow and reduce electromagnetic interference, ensuring precise control and efficient operation of machinery.