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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

0.18 ZŁ with VAT / pcs + price for transport

0.15 ZŁ net + 23% VAT / pcs

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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 rectangular form. They are valued for their extremely powerful magnetic properties, which outshine standard ferrite magnets.
Due to their strength, flat magnets are commonly applied in structures that need strong holding power.
Most common temperature resistance of flat magnets is 80 °C, but with larger dimensions, this value grows.
Moreover, flat magnets usually have different coatings applied to their surfaces, such as nickel, gold, or chrome, for enhancing their corrosion resistance.
The magnet with the designation MPL 5x5x1.5 / N38 and a magnetic force 0.59 kg which weighs just 0.28 grams, making it the excellent choice for applications requiring a flat shape.

Neodymium flat magnets offer a range of advantages compared to other magnet shapes, which make them being the best choice for various uses:
Contact surface: Due to their flat shape, flat magnets ensure a greater contact surface with other components, which is beneficial in applications needing a stronger magnetic connection.
Technology applications: These are often applied in many devices, e.g. sensors, stepper motors, or speakers, where the flat shape is necessary for their operation.
Mounting: This form's flat shape makes it easier mounting, especially when it is required to attach the magnet to another surface.
Design flexibility: The flat shape of the magnets gives the possibility creators a lot of flexibility in arranging them in devices, which can be more difficult with magnets of other shapes.
Stability: In certain applications, the flat base of the flat magnet may offer better stability, minimizing the risk of shifting or rotating. It’s important to keep in mind that the optimal shape of the magnet depends on the specific application and requirements. In certain cases, other shapes, like cylindrical or spherical, are a better choice.

Magnets attract objects made of ferromagnetic materials, such as iron, nickel, materials with cobalt and special alloys of ferromagnetic metals. Moreover, magnets may lesser affect some other metals, such as steel. It’s worth noting that magnets are utilized in various devices and technologies.

Magnets work thanks to the properties of the magnetic field, which arises from the ordered movement of electrons in their structure. The magnetic field of magnets creates attractive interactions, which attract objects made of iron or other ferromagnetic substances.

Magnets have two main poles: north (N) and south (S), which attract each other when they are different. Similar poles, e.g. two north poles, act repelling on each other.
Due to these properties, magnets are commonly used in magnetic technologies, such as motors, speakers, sensors, or magnetic locks. Neodymium magnets stand out with the greatest strength of attraction, making them ideal for applications requiring strong magnetic fields. Additionally, the strength of a magnet depends on its dimensions and the material it is made of.

Not all materials react to magnets, and examples of such substances are plastic, glass items, wooden materials or precious stones. Furthermore, magnets do not affect certain metals, such as copper, aluminum, gold. These metals, although they are conductors of electricity, do not exhibit ferromagnetic properties, meaning that they remain unaffected by a magnet, unless they are subjected to an extremely 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 once this temperature is exceeded, the magnet stops being magnetic. Interestingly, strong magnets can interfere with the operation of devices, such as navigational instruments, credit cards or electronic devices sensitive to magnetic fields. For this reason, it is important to exercise caution when using magnets.

A neodymium magnet with classification N52 and N50 is a powerful and strong metal object with the shape of a plate, that provides strong holding power and versatile application. Good price, fast shipping, resistance and broad range of uses.

Advantages and disadvantages of neodymium magnets NdFeB.

In addition to their exceptional strength, neodymium magnets offer the following advantages:

They do not lose their power around 10 years – the decrease of lifting capacity is only ~1% (according to tests),
They remain magnetized despite exposure to magnetic noise,
Because of the brilliant layer of gold, the component looks aesthetically refined,
They possess intense magnetic force measurable at the magnet’s surface,
These magnets tolerate high temperatures, often exceeding 230°C, when properly designed (in relation to profile),
The ability for custom shaping or adjustment to specific needs – neodymium magnets can be manufactured in many forms and dimensions, which amplifies their functionality across industries,
Significant impact in modern technologies – they find application in data storage devices, electric motors, healthcare devices and high-tech tools,
Relatively small size with high magnetic force – neodymium magnets offer intense magnetic field in compact dimensions, which makes them ideal in small systems

Disadvantages of rare earth magnets:

They are fragile when subjected to a strong impact. If the magnets are exposed to shocks, it is suggested to place them in a steel housing. The steel housing, in the form of a holder, protects the magnet from cracks and additionally enhances its overall resistance,
High temperatures may significantly reduce the strength of neodymium magnets. Typically, above 80°C, they experience permanent deterioration in performance (depending on form). To prevent this, we offer heat-resistant magnets marked [AH], capable of working up to 230°C, which makes them perfect for high-temperature use,
Magnets exposed to humidity can oxidize. Therefore, for outdoor applications, it's best to use waterproof types made of coated materials,
The use of a protective casing or external holder is recommended, since machining threads in neodymium magnets is difficult,
Safety concern linked to microscopic shards may arise, especially if swallowed, which is crucial in the family environments. It should also be noted that minuscule fragments from these devices have the potential to complicate medical imaging once in the system,
High unit cost – neodymium magnets are more expensive than other types of magnets (e.g., ferrite), which can restrict large-scale applications

Handle with Care: Neodymium Magnets

Dust and powder from neodymium magnets are flammable.

Do not attempt to drill into neodymium magnets. Mechanical processing is also not recommended. Once crushed into fine powder or dust, this material becomes highly flammable.

Do not give neodymium magnets to youngest children.

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 not recommended for 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 magnetic are extremely fragile, leading to their cracking.

Magnets made of neodymium are fragile and will crack if allowed to collide with each other, even from a distance of a few centimeters. Despite being made of metal as well as coated with a shiny nickel plating, they are not as hard as steel. In the case of a collision between two magnets, there can be a scattering of small sharp metal fragments in different directions. Protecting your eyes is essential.

Neodymium magnets can demagnetize at high temperatures.

In certain circumstances, Neodymium magnets can lose their magnetism when subjected to high temperatures.

Neodymium magnets are over 10 times more powerful than ferrite magnets (the ones in speakers), and their power can surprise you.

Familiarize yourself with our information to properly handle these magnets and avoid significant injuries to your body and prevent disruption to the magnets.

Do not place neodymium magnets near a computer HDD, TV, and wallet.

Neodymium magnets generate intense magnetic fields that can destroy magnetic media such as floppy disks, video tapes, HDDs, credit cards, magnetic ID cards, cassette tapes, or other devices. They can also destroy videos, televisions, CRT computer monitors. Do not forget to keep neodymium magnets at a safe distance from these electronic devices.

Keep neodymium magnets away from GPS and smartphones.

Neodymium magnets generate intense magnetic fields that interfere with magnetometers and compasses used in navigation, as well as internal compasses of smartphones and GPS devices.

The magnet is coated with nickel - be careful if you have an allergy.

Studies clearly indicate a small percentage of people who suffer from metal allergies such as 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.

Magnets will attract to each other, so remember not to allow them to pinch together without control or place your fingers in their path.

Magnets will attract each other within a distance of several to about 10 cm from each other. Don't put your fingers in the path of magnet attraction, as a significant injury may occur. Depending on how large the neodymium magnets are, they can lead to a cut or a fracture.

Caution!

So that know how powerful neodymium magnets are and why they are so dangerous, read the article - Dangerous powerful neodymium magnets.