China Suppliers Factory Custom Permalloy Stacked Iron Cores - High Magnetic Permeability 1J85 Material
Product Introduction
Stacked cores designed for high-performance electromagnetic applications.
Application Fields
Widely used in electromagnetic components such as transformers, small transformers, sensors, reactors, chokes, etc., in electronic equipment.
Core Material
High magnetic permeability permalloy soft tape materials, such as 1J85 and 1J50, deliver excellent performance, high magnetic permeability, and low loss.
Exquisite Craftsmanship
Precision punch mold making, precise dimensions, tight insertion, no magnetic leakage, and high magnetic permeability.
High Customization
To meet the diverse needs of customers, various specifications can be customized.
Process Features
Welding or lamination riveting forming, fast and efficient.
The stacked cores is usually made of high magnetic permeability 1J85 material. This material is known for its high magnetic permeability and low residual magnetism, which gives the laminated iron core significant advantages in the application of various electromagnetic components.
1J85 material has the characteristics of low residual magnetism. Low residual magnetism means that the material can quickly return to a non-magnetic state during magnetization and demagnetization, thereby reducing hysteresis losses and improving the efficiency and stability of electromagnetic components. This characteristic is particularly important for applications that require frequent magnetization and demagnetization, such as leakage protectors.
The design of the stacked cores also takes into account the heat dissipation and mechanical strength of the electromagnetic components. The lamination design not only helps optimize the magnetic circuit, but also improves the heat dissipation performance of the core and prevents overheating. At the same time, precise processing and high-quality material selection give the core good mechanical strength and can withstand the mechanical stress and vibration that electromagnetic components may encounter during operation.
| Trademark | level | Strip thickness mm | At 0.08 magnetic field permeability uo GS/Oe | Maximum magnetic permeability um Gs/Oe | Coercivity HC | Saturation magnetic hardness BS GS |
|---|---|---|---|---|---|---|
| no less than | no greater than | no less than | ||||
| 1J79B | YB/T5251-2013 | 0.05 | 20000 | 150000 | 0.03 | 7500 |
| 0.1 | 22000 | 200000 | 0.02 | |||
| 0.2 | 24000 | 220000 | 0.015 | |||
| 1J85B | YB/T5251-2013 | 0.05 | 45000 | 150000 | 0.02 | 6500 |
| 0.1 | 55000 | 180000 | 0.015 | |||
| 0.2 | 65000 | 220000 | 0.01 | |||
| 0.3 | 65000 | 250000 | 0.009 | |||
What are the main applications of these stacked cores?
They are widely used in key electromagnetic components such as transformers, small transformers, sensors, reactors, and chokes in electronic equipment.
Why is 1J85 material preferred for stacked cores?
1J85 is a high magnetic permeability permalloy material known for its low residual magnetism. This allows the core to quickly return to a non-magnetic state, reducing hysteresis loss and improving efficiency and stability.
How does the lamination design benefit heat dissipation?
The lamination design optimizes the magnetic circuit and improves heat dissipation across the core structure, effectively preventing overheating during high-frequency operation.
Can I order custom specifications for these cores?
Yes. We offer high customization with precision punch mold making to meet diverse sizing, dimensional, and performance requirements.
What manufacturing options are used for forming the cores?
We employ fast and efficient forming processes, including professional welding or lamination riveting, to ensure high mechanical strength and precise dimensions.








