Product Description

NF43 PTC Ni-Fe Alloy Wire with 45-50% Nickel Content for Temperature-Sensitive Applications, Resistance 0.43

The product exhibits a resistivity of 0.43 at a temperature of 20°C, with a tolerance range of ±0.02.

NF43 PTC Ni-Fe Alloy (Ni 50%-55%) is a nickel-iron alloy with a Positive Temperature Coefficient (PTC), meaning its resistivity increases with rising temperature. This property makes it ideal for temperature sensing, overcurrent protection, and self-regulating heating applications. Its high magnetic permeability and low coercivity make it a suitable material for soft magnetic applications, such as transformers, inductors, and magnetic shielding.

The alloy exhibits high electrical resistivity, reducing energy losses in magnetic circuits, and offers excellent thermal stability across a wide temperature range, ensuring consistent performance. Its nickel content enhances resistance to oxidation and corrosion, providing durability in harsh environments.

With good mechanical strength and ductility, NF43 can be formed into various shapes, including wires and strips, for use in precision devices, magnetic components, and industrial systems. Widely used in automotive, electronics, and industrial applications, NF40 combines thermal, magnetic, and electrical reliability, making it a versatile and durable material for critical applications.

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 PTC Ni-Fe Alloy NF43 Include:

Positive Temperature Coefficient (PTC):

The resistivity increases with rising temperature, making it ideal for applications requiring temperature sensing, control, and circuit protection.
Enhanced Magnetic Properties:

High magnetic permeability and low coercivity enable efficient performance in soft magnetic applications such as transformers, inductors, and chokes.
High Electrical Resistivity:

Minimizes energy losses in magnetic circuits and ensures reliable performance in electronic devices.
Thermal Stability:

Offers consistent electrical and magnetic properties across a wide temperature range, suitable for demanding operational conditions.
Corrosion Resistance:

The nickel content provides excellent resistance to oxidation and corrosion, ensuring durability in harsh environments.
Mechanical Versatility:

Good ductility and machinability allow for easy processing into wires, sheets, or custom components for diverse applications.
Wide Application Range:

Used in temperature-sensitive devices, magnetic shielding, heating elements, and precision electronic components.
Reliability and Durability:

Combines stable thermal, magnetic, and resistive properties with long-lasting performance for industrial, automotive, and electronic applications.

NF43 is a versatile alloy, designed for applications requiring high precision, reliability, and stability in thermal and magnetic performance.

Applications:

Temperature Sensing and Control:

Used in thermistors and temperature-sensitive resistors for monitoring and regulating temperature in industrial equipment and electronic devices.
Overcurrent Protection Devices:

Serves as a current limiter by increasing resistance with rising temperature, protecting electronic circuits from damage due to overcurrent.
Magnetic Cores:

Applied in soft magnetic cores for transformers, inductors, and chokes to enhance energy transfer efficiency and minimize losses.
Magnetic Shielding:

Provides shielding for sensitive electronic components by protecting them from external magnetic interference.
Industrial Heating Systems:

Integrated into self-regulating heating elements for precise temperature control and energy efficiency.
Automotive Electronics:

Found in temperature sensors, circuit protectors, and resistors within automotive systems for reliable operation under varying conditions.
Precision Instrumentation:

Used in high-accuracy devices requiring consistent magnetic and resistive properties, such as precision sensors and actuators.
Consumer Electronics:

Incorporated into circuit protection components for household appliances, ensuring safety by preventing overheating or electrical faults.
Energy Systems:

Utilized in renewable energy systems and power electronics to enhance the stability and reliability of magnetic and thermal components.

NF43's PTC behavior, combined with its magnetic and thermal stability, makes it versatile for applications in industrial, automotive, and electronic fields.

Support and Services:

1. Technical Consultation

2. Product Selection

3. Time Guarantee

4. Warranty and After-Sales Support

Q&A: 

1. Where can this product be applied?

This material is widely used in various electrical heaters, such as car seat heating, snow melting heating, electric floor heating, etc. 

2. Is your product safe and environmentally friendly?** Our product has passed SGS test reports, the SVHC content, which is of concern to the European Chemicals Agency and WTO, is lower than the specified 0.1%, and it has also passed the ISO9001 quality system certification. 

3. What is the minimum order quantity for customers?

If the desired product is in stock, we can provide a single piece as a sample. If the stock is insufficient, the minimum order quantity is 5kg. 

4. How do you guarantee product quality?

Advanced manufacturing processes are used, with three samples taken for inspection during production. The quality inspection standards are high, consistent with Swedish KANTHAL, and ISO9001 certified.