Medium Resistivity NF13 PTC Ni-Fe Alloy Wire 8 Mm Diameter

Product Specification

NF13 PTC Ni-Fe Alloy Wire with High Nickel85-95 for Power Regulation Resistivity 0.13 with Tolerance plusmn 0.02

The product exhibits a resistivity of 0.13 at a temperature of 20°C, with a tolerance range of ±0.02.

PTC Alloy wire has medium resistivity and high positive temperature coefficient of resistance. It is widely used in various heaters. It can automatically control temperature and adjust power by keeping constant current and limiting current. PTC alloy has many advantages such as automatic temperature control, automatic power regulation, constant current, current limiting, energy saving and long practical life.

Thermistors made from PTC alloy resistance wire can be connected in series in a circuit to suppress excessive current, providing protection for components. They are widely used in power equipment such as chargers and transformers.

We perform two sampling analyses during production and conduct a finished product inspection upon completion, ensuring the chemical composition, diameter, resistivity, and temperature coefficient of the product meet the requirements. Compared to similar products, we achieve a higher yield rate and greater usage stability, minimizing potential quality issues during use.

Resistance Values and Naming Conventions for PTC Ni-Fe Alloy Wires

Chemical Composition of Different Models of PTC Ni-Fe Alloy Wire

Temperature Coefficients of Different Models of PTC Ni-Fe Alloy Wire

Mechanical properties (tensile strength)

Size (diameter)

Key features of NF13 PTC Ni-Fe Alloy include:

1. High Nickel Content (85%-95% Ni):

   • The high nickel content provides excellent corrosion resistance, especially in aggressive environments, making it durable and long-lasting.

2. Positive Temperature Coefficient (PTC):

   • The alloy exhibits a positive temperature coefficient, meaning its electrical resistivity increases with temperature. This property makes it ideal for temperature sensing, overcurrent protection, and self-regulating heating applications.

3. Magnetic Properties:

   • High magnetic permeability and low coercivity allow NF13 to perform efficiently in soft magnetic applications like transformers, inductors, and magnetic cores.

4. High Electrical Resistivity:

   • The alloy’s resistivity is high, reducing energy losses and improving efficiency in circuits, particularly in magnetic applications.

5. Thermal Stability:

   • Maintains stable electrical and magnetic properties over a wide temperature range, making it reliable for use in varying temperature conditions.

6. Mechanical Strength:

   • Offers good mechanical properties, including ductility and machinability, enabling it to be processed into various forms such as wires, sheets, and other components.

7. Corrosion Resistance:

   • The high nickel content enhances its resistance to oxidation and corrosion, ensuring durability and longevity in harsh environments.

8. Versatility in Applications:

   • Suitable for use in electrical components, magnetic shielding, heating elements, and temperature sensors in a wide range of industries, including automotive, electronics, and industrial applications.

NF13’s combination of high nickel content, thermal stability, PTC behavior, and magnetic properties makes it an excellent choice for applications where reliability, corrosion resistance, and efficiency are critical.

Applications:

1. Temperature Sensing and Control:

   • Used in thermistors and temperature-sensitive resistors for precise temperature regulation in industrial, automotive, and electronic systems.

2. Overcurrent Protection:

   • Acts as a current limiter by increasing resistance at higher temperatures, protecting sensitive circuits from damage due to overcurrent.

3. Magnetic Cores:

   • Ideal for transformers, inductors, and chokes requiring high permeability and low coercivity for efficient energy transfer and reduced energy losses.

4. Magnetic Shielding:

   • Provides protection against external magnetic interference in sensitive electronics, precision instruments, and communication systems.

5. Industrial Heating Systems:

   • Integrated into self-regulating heating elements for efficient and safe temperature control in industrial and domestic applications.

6. Automotive Electronics:

   • Used in sensors, resistors, and overcurrent protection devices for reliable operation in high-temperature and harsh environments.

7. Consumer Electronics:

   • Found in temperature regulation and circuit protection components for household appliances, ensuring safety and durability.

8. Aerospace and Defense Applications:

   • Suitable for high-performance electronic systems where thermal stability and magnetic shielding are critical.

9. Renewable Energy Systems:

   • Utilized in power electronics, inverters, and converters to stabilize magnetic and resistive components under varying operating conditions.

10. Precision Instruments:

• Applied in high-accuracy sensing and control devices requiring stable resistive and magnetic properties over a wide temperature range.

NF13's high nickel content, PTC behavior, and excellent magnetic and thermal properties make it a versatile material for demanding applications in various industries.

Support and Services:

1. Technical Consultation

2. Product Selection

3. Time Guarantee

4. Warranty and After-Sales Support

Q&A:

1. Application scenarios of this product

Household appliances, electric floor heating, industrial heating and other electric heating equipment

2. How to choose products with different diameters and resistivity

We have product experts who are familiar with the use of the scenario to help determine the product, you can send email or contact us via chat software.

3. What are the advantages of PTC Ni-Fe Alloy Wire?

Energy saving, long service life and other advantages.