High/Low Frequency Single-Layer or Multi-Layer Pure Copper Inductor

• Customization: Available
• Type: Fixed Inductor
• Structure: Inductive Choke
• Model NO.: RH-GJ-009
• Working Frequency: Low Frequency
• Structure of Winding: Single Coil
• Nature of Operation: Choke Coil
• Structure of Magnetizer: Copper Coil
• Range of Application: Switches, Control
• Packaging Form: Welding
• Brand: Ruhua
• Inductor Value: Fixed Inductor
• Transport Package: Paper Case
• Specification: customize
• Trademark: Ruhua
• Origin: China
• HS Code: 8504500000
• Production Capacity: 5000PC/Day

Product Description

We specialize in producing electrical product supporting equipment, including high-quality coils, transformers, inductors, and deep processing of high-grade electronic wires. At present, it has an annual production capacity of 15 million coils, 10 million transformers, 20 million inductors, 30 million high-grade electronic wires, and 60 million terminal electronic wires. The company is composed of a team with over 20 years of production and research and development experience, which provides a strong guarantee for the company to meet customer needs on time and with quality and quantity. And ensure to cooperate with customer concepts and look forward to jointly developing and researching various innovative products with customers.

The company takes "meeting customer needs" as its purpose and adheres to the concept of "quality first, attentive service." The company has passed the certification of our company's implementation of the GB/T19001-2008/ISO9001:2008 quality management system standard by the international certification company-"Fangyuan Mark Certification Group Co., Ltd.", and has obtained the "Quality Management System Certification Certificate." At the same time, the company leads all employees to unite, seek truth from facts, and strive for innovation for the benefit of customers, striving to achieve the common goal of building a first-class enterprise in the same industry. Company vision: Through the efforts of all employees, the com[any has made significant progress in all aspects, employees have a clear sense of belonging, and customers have become long-term stable partners.
 

Model	RH-GJ-009
Material	Pure copper
Application scope	Electromagnets, magnetic suction, low-voltage electrical switches, solenoid valve switches, fire safety switches, automotive electronics, industrial control, household appliances,etc.
Types	Inductive coils, Magnetic coils, Iron core coils
Winding form	Single-layer or multi-layer dense winding
packaging form	adhesive paper, epoxy, adhesive tape
Magnetic properties	Iron core, ferrite
Working frequency	low frequency, high frequency
Installation method	Welding
Skeleton materials	plastic, ceramic, aluminum
inductance	5uh-101mh
Rated current	10mA-11A
Nominal voltage	1.5V-381V

FAQ

1. What is an inductor coil?
An inductor coil stores energy in a magnetic field when electric current passes through it. Made of wire wound around a core, it can induce an emf when the current changes, following Faraday's law. This property enables applications in filtering, energy storage, and impedance matching.
2. How is an inductor coil constructed?
It typically consists of a wire coil. The wire can be copper, aluminum, etc. Coils are wound around different cores:

• Air core: Used in high - frequency applications to avoid unwanted losses from magnetic core materials.

• Ferrite core: A ceramic with magnetic properties, increasing inductance significantly. Widely used in power supplies and RF circuits.

• Iron core: Enhances inductance due to high magnetic permeability, but has losses at high frequencies. Used in low - frequency applications like power transformers.

3. How is inductance measured?
Measured in henries (H), with smaller units like millihenries (mH) and microhenries (μH). Specialized instruments such as LCR meters or inductance meters are used. They apply an AC signal to the inductor and calculate inductance from the resulting voltage and current.
4. What are the key specifications of an inductor coil?

• Inductance: Fundamental, determines energy storage in a magnetic field and circuit interaction.

• Rated current: Maximum continuous current without overheating or damage.

• DC resistance: Resistance to DC current; lower is better to reduce heat losses.

• Quality factor (Q): Ratio of inductive reactance to equivalent series resistance, indicating efficiency.

• Self - resonant frequency (SRF): Above this, the inductor behaves like a capacitor.

5. What are the common failure modes of inductor coils?

• Open circuit: Wire breaks due to stress, overheating, or defects, halting current flow.

• Short circuit: Insulation breakdown allows current between turns, caused by overvoltage or overheating.

• Inductance change: Caused by overheating, core damage, or external magnetic fields, disrupting circuit function.

• Overheating: From high current or high - temperature environments, degrading insulation and core properties.

6. How can I test an inductor coil?

• Using an LCR meter: Set to inductance mode, connect to the inductor to measure its value and compare with the rated value.

• Continuity test with a multimeter: Checks for open circuits, but doesn't measure inductance accurately.

7. What are the applications of inductor coils?

• Power supplies: Filtering and energy storage in DC - DC converters.

• RF circuits: Impedance matching and frequency selection in wireless devices.

• Audio circuits: Speaker - protection and tone - control.

• Motor control: Reducing brush sparking in DC motors and controlling speed in AC motors.

8. How do I choose the right inductor coil for my application?

• Determine inductance: Based on circuit design, like ripple - reduction in power supplies or impedance - matching in RF circuits.

• Check current rating: Ensure it can handle maximum circuit current.

• Evaluate DC resistance: Balance with other factors in high - Q circuits.

• Choose core material: Depends on frequency and inductance needs.

• Consider size and form factor: Fit available space without sacrificing performance.

• Check operating temperature range: Ensure it suits the application environment.

9. Can I replace an inductor coil with one of a different value?
Not advisable without considering circuit impact. Changing inductance can affect ripple suppression in power supplies or impedance matching in RF circuits. Best to use an inductor with the same or similar specifications. If different, re - design and re - test the circuit.

10. How do inductor coils interact with other components in a circuit?

• With capacitors: Create resonant circuits for filtering.

• With resistors: Determine current change speed in LR circuits.

• With transistors: Used in biasing or load circuits in amplifier and power - supply circuits.