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MPL 5x5x1.5 / N38 - lamellar magnet

lamellar magnet

Catalog no 020172

GTIN: 5906301811787

length [±0,1 mm]

5 mm

Width [±0,1 mm]

5 mm

Height [±0,1 mm]

1.5 mm

Weight

0.28 g

Magnetization Direction

↑ axial

Load capacity

0.59 kg / 5.79 N

Magnetic Induction

293.49 mT

Coating

[NiCuNi] nickel

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MPL 5x5x1.5 / N38 - lamellar magnet

Specification/characteristics MPL 5x5x1.5 / N38 - lamellar magnet

properties

values

Cat. no.

020172

GTIN

5906301811787

Production/Distribution

Dhit sp. z o.o.

Country of origin

Poland / China / Germany

Customs code

85059029

length

5 mm [±0,1 mm]

Width

5 mm [±0,1 mm]

Height

1.5 mm [±0,1 mm]

Weight

0.28 g [±0,1 mm]

Magnetization Direction

↑ axial

Load capacity ~ ?

0.59 kg / 5.79 N

Magnetic Induction ~ ?

293.49 mT

Coating

[NiCuNi] nickel

Manufacturing Tolerance

± 0.1 mm

Magnetic properties of material N38

properties

values

units

coercivity bHc ?

860-915

kA/m

coercivity bHc ?

10.8-11.5

kOe

energy density [Min. - Max.] ?

287-303

BH max KJ/m

energy density [Min. - Max.] ?

36-38

BH max MGOe

remenance Br [Min. - Max.] ?

12.2-12.6

kGs

remenance Br [Min. - Max.] ?

1220-1260

actual internal force iHc

≥ 955

kA/m

actual internal force iHc

≥ 12

kOe

max. temperature ?

≤ 80

°C

Physical properties of NdFeB

properties

values

units

Vickers hardness

≥550

Density

≥7.4

g/cm³

Curie Temperature TC

312 - 380

°C

Curie Temperature TF

593 - 716

°F

Specific resistance

150

μΩ⋅Cm

Bending strength

250

Mpa

Compressive strength

1000~1100

Mpa

Thermal expansion parallel (∥) to orientation (M)

(3-4) x 106

°C^-1

Thermal expansion perpendicular (⊥) to orientation (M)

-(1-3) x 10-6

°C^-1

Young's modulus

1.7 x 104

kg/mm²

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Flat neodymium magnets min. MPL 5x5x1.5 / N38 are magnets created from neodymium in a flat form. They are known for their very strong magnetic properties, which surpass traditional ferrite magnets.
Due to their strength, flat magnets are frequently applied in devices that need exceptional adhesion.
Most common temperature resistance of flat magnets is 80 °C, but with larger dimensions, this value grows.
In addition, flat magnets usually have different coatings applied to their surfaces, e.g. nickel, gold, or chrome, to improve their strength.
The magnet named MPL 5x5x1.5 / N38 i.e. a magnetic strength 0.59 kg weighing a mere 0.28 grams, making it the excellent choice for projects needing a flat magnet.

Neodymium flat magnets offer a range of advantages compared to other magnet shapes, which lead to them being a perfect solution for a multitude of projects:
Contact surface: Thanks to their flat shape, flat magnets ensure a larger contact surface with other components, which can be beneficial in applications requiring a stronger magnetic connection.
Technology applications: They are often utilized in many devices, such as sensors, stepper motors, or speakers, where the thin and wide shape is important for their operation.
Mounting: The flat form's flat shape simplifies mounting, especially when it is required to attach the magnet to another surface.
Design flexibility: The flat shape of the magnets permits designers a lot of flexibility in placing them in structures, which is more difficult with magnets of other shapes.
Stability: In some applications, the flat base of the flat magnet may offer better stability, minimizing the risk of shifting or rotating. However, it's important to note that the optimal shape of the magnet is dependent on the specific application and requirements. In certain cases, other shapes, like cylindrical or spherical, are more appropriate.

How do magnets work? Magnets attract objects made of ferromagnetic materials, such as iron, nickel, materials with cobalt or alloys of metals with magnetic properties. Additionally, magnets may lesser affect alloys containing iron, such as steel. It’s worth noting that magnets are utilized in various devices and technologies.

The operation of magnets is based on the properties of their magnetic field, which arises from the ordered movement of electrons in their structure. The magnetic field of magnets creates attractive forces, which affect objects made of cobalt or other magnetic materials.

Magnets have two poles: north (N) and south (S), which interact with each other when they are oppositely oriented. Poles of the same kind, such as two north poles, act repelling on each other.
Thanks to this principle of operation, magnets are commonly used in magnetic technologies, e.g. motors, speakers, sensors, or magnetic locks. Neodymium magnets stand out with the highest power of attraction, making them perfect for applications requiring strong magnetic fields. Additionally, the strength of a magnet depends on its dimensions and the materials used.

Magnets do not attract plastics, glass, wooden materials or most gemstones. Moreover, magnets do not affect most metals, such as copper, aluminum, copper, aluminum, and gold. These metals, although they are conductors of electricity, do not exhibit ferromagnetic properties, meaning that they do not respond to a standard magnetic field, unless exposed to a very strong magnetic field.
It should be noted that extremely high temperatures, above the Curie point, cause a loss of magnetic properties in the magnet. Every magnetic material has its Curie point, meaning that under such conditions, the magnet stops being magnetic. Interestingly, strong magnets can interfere with the operation of devices, such as navigational instruments, credit cards and even electronic devices sensitive to magnetic fields. For this reason, it is important to avoid placing magnets near such devices.

A neodymium magnet N50 and N52 is a powerful and highly strong magnetic product in the form of a plate, that provides strong holding power and universal application. Good price, availability, durability and universal usability.

Advantages as well as disadvantages of neodymium magnets NdFeB.

In addition to their magnetic capacity, neodymium magnets provide the following advantages:

They retain their attractive force for almost 10 years – the loss is just ~1% (according to analyses),
Their ability to resist magnetic interference from external fields is notable,
By applying a bright layer of nickel, the element gains a sleek look,
They exhibit elevated levels of magnetic induction near the outer area of the magnet,
Neodymium magnets are known for exceptionally strong magnetic induction and the ability to work at temperatures up to 230°C or higher (depending on the geometry),
Thanks to the flexibility in shaping and the capability to adapt to specific requirements, neodymium magnets can be created in different geometries, which broadens their usage potential,
Key role in new technology industries – they are utilized in HDDs, rotating machines, clinical machines or even sophisticated instruments,
Relatively small size with high magnetic force – neodymium magnets offer impressive pulling strength in small dimensions, which makes them ideal in miniature devices

Disadvantages of magnetic elements:

They can break when subjected to a heavy impact. If the magnets are exposed to external force, they should be placed in a steel housing. The steel housing, in the form of a holder, protects the magnet from damage , and at the same time reinforces its overall robustness,
Magnets lose pulling force when exposed to temperatures exceeding 80°C. In most cases, this leads to irreversible power drop (influenced by the magnet’s dimensions). To address this, we provide [AH] models with superior thermal resistance, able to operate even at 230°C or more,
Due to corrosion risk in humid conditions, it is advisable to use sealed magnets made of plastic for outdoor use,
The use of a protective casing or external holder is recommended, since machining multi-axis shapes in neodymium magnets is difficult,
Health risk due to small fragments may arise, when consumed by mistake, which is notable in the protection of children. Additionally, minuscule fragments from these magnets can disrupt scanning once in the system,
In cases of tight budgets, neodymium magnet cost is a challenge,

Precautions with Neodymium Magnets

Do not bring neodymium magnets close to GPS and smartphones.

Intense magnetic fields generated by neodymium magnets interfere with compasses and magnetometers used in navigation, as well as internal compasses of smartphones and GPS devices.

Neodymium magnets can attract to each other, pinch the skin, and cause significant swellings.

In the situation of placing a finger in the path of a neodymium magnet, in that situation, a cut or even a fracture may occur.

The magnet coating is made of nickel, so be cautious if you have an allergy.

Studies show a small percentage of people have allergies to certain metals, including nickel. An allergic reaction often manifests as skin redness and rash. If you have a nickel allergy, you can try wearing gloves or simply avoid direct contact with nickel-plated neodymium magnets.

Keep neodymium magnets away from youngest children.

Remember that neodymium magnets are not toys. Do not allow children to play with them. In the case of swallowing multiple magnets simultaneously, they can attract to each other through the intestinal walls. In the worst case scenario, this can lead to death.

Neodymium magnets are known for being fragile, which can cause them to crumble.

Neodymium magnets are fragile and will break if allowed to collide with each other, even from a distance of a few centimeters. They are coated with a shiny nickel plating similar to steel, but they are not as hard. At the moment of collision between the magnets, small sharp metal pieces can be propelled in various directions at high speed. Eye protection is recommended.

Keep neodymium magnets away from people with pacemakers.

In the case of neodymium magnets, there is a strong magnetic field. As a result, it interferes with the operation of a heart pacemaker. However, if the magnetic field does not affect the device, it can damage its components or deactivate the device when it is in a magnetic field.

Neodymium magnets are the most powerful magnets ever invented. Their power can shock you.

On our website, you can find information on how to use neodymium magnets. This will help you avoid injuries and prevent damage to the magnets.

Under no circumstances should neodymium magnets be placed near a computer HDD, TV, and wallet.

The strong magnetic field generated by neodymium magnets can damage magnetic media such as floppy disks, video tapes, HDDs, credit cards, magnetic ID cards, cassette tapes, etc. devices. They can also destroy devices like video players, televisions, CRT computer monitors. Do not forget to keep neodymium magnets away from these electronic devices.

Neodymium magnets can demagnetize at high temperatures.

Whilst Neodymium magnets can demagnetize at high temperatures, it's important to note that the extent of this effect can vary based on factors such as the magnet's material, shape, and intended application.

Dust and powder from neodymium magnets are flammable.

Avoid drilling or mechanical processing of neodymium magnets. If the magnet is crushed into fine powder or dust, it becomes highly flammable.

Pay attention!

So you are aware of why neodymium magnets are so dangerous, see the article titled How very dangerous are very strong neodymium magnets?.