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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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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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Neodymium flat magnets i.e. MPL 5x5x1.5 / N38 are magnets created from neodymium in a rectangular form. They are valued for their extremely powerful magnetic properties, which are much stronger than standard iron magnets.
Due to their strength, flat magnets are frequently applied in products that require very strong attraction.
Most common temperature resistance of these magnets is 80 °C, but with larger dimensions, this value grows.
Additionally, flat magnets often have different coatings applied to their surfaces, e.g. nickel, gold, or chrome, for enhancing their corrosion resistance.
The magnet with the designation MPL 5x5x1.5 / N38 i.e. a magnetic strength 0.59 kg with a weight of a mere 0.28 grams, making it the perfect choice for applications requiring a flat shape.

Neodymium flat magnets offer a range of advantages versus other magnet shapes, which cause them being a perfect solution for a multitude of projects:
Contact surface: Due to their flat shape, flat magnets ensure a larger contact surface with adjacent parts, which is beneficial in applications requiring a stronger magnetic connection.
Technology applications: They are often utilized in various devices, such as sensors, stepper motors, or speakers, where the thin and wide shape is crucial for their operation.
Mounting: The flat form's flat shape makes it easier mounting, especially when it is required to attach the magnet to some surface.
Design flexibility: The flat shape of the magnets allows designers a lot of flexibility in placing them in devices, which can be more difficult with magnets of more complex shapes.
Stability: In certain applications, the flat base of the flat magnet can offer better stability, reducing the risk of sliding or rotating. However, it's important to note that the optimal shape of the magnet depends on the specific project and requirements. In some cases, other shapes, like cylindrical or spherical, are a better choice.

How do magnets work? Magnets attract objects made of ferromagnetic materials, such as iron, objects containing nickel, cobalt and special alloys of ferromagnetic metals. Additionally, magnets may weaker 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 the magnetic field, which is generated by the movement of electric charges within their material. The magnetic field of these objects creates attractive forces, which affect materials containing nickel or other ferromagnetic substances.

Magnets have two main poles: north (N) and south (S), which attract each other when they are different. Similar poles, such as two north poles, act repelling on each other.
Thanks to this principle of operation, magnets are regularly used in electrical devices, such as motors, speakers, sensors, or magnetic locks. Neodymium magnets stand out with the greatest strength of attraction, making them ideal for applications requiring powerful magnetic fields. Moreover, the strength of a magnet depends on its size and the material it is made of.

Magnets do not attract plastic, glass, wooden materials and precious stones. Furthermore, magnets do not affect most metals, such as copper items, aluminum, 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 they are subjected to an extremely strong magnetic field.
It’s worth noting that high temperatures can weaken the magnet's effect. The Curie temperature is specific to each type of magnet, meaning that under such conditions, the magnet stops being magnetic. Interestingly, strong magnets can interfere with the operation of devices, such as compasses, credit cards or medical equipment, like pacemakers. Therefore, it is important to exercise caution when using magnets.

A flat magnet with classification N50 and N52 is a strong and powerful metallic component shaped like a plate, providing high force and universal applicability. Good price, availability, resistance and broad range of uses.

Advantages as well as disadvantages of neodymium magnets NdFeB.

In addition to their immense magnetic power, neodymium magnets offer the following advantages:

They virtually do not lose power, because even after 10 years, the decline in efficiency is only ~1% (according to literature),
They show superior resistance to demagnetization from external magnetic fields,
The use of a mirror-like gold surface provides a smooth finish,
They have very high magnetic induction on the surface of the magnet,
Thanks to their high temperature resistance, they can operate (depending on the form) even at temperatures up to 230°C or more,
The ability for custom shaping as well as customization to individual needs – neodymium magnets can be manufactured in many forms and dimensions, which extends the scope of their use cases,
Key role in new technology industries – they are used in computer drives, rotating machines, healthcare devices as well as sophisticated instruments,
Relatively small size with high magnetic force – neodymium magnets offer impressive pulling strength in compact dimensions, which allows for use in small systems

Disadvantages of magnetic elements:

They may fracture when subjected to a strong impact. If the magnets are exposed to shocks, we recommend in a steel housing. The steel housing, in the form of a holder, protects the magnet from breakage and additionally enhances its overall durability,
High temperatures may significantly reduce the holding force of neodymium magnets. Typically, above 80°C, they experience permanent decline in performance (depending on size). 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,
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 fine details in neodymium magnets is difficult,
Potential hazard from tiny pieces may arise, when consumed by mistake, which is significant in the health of young users. Furthermore, small elements from these devices have the potential to interfere with diagnostics after being swallowed,
High unit cost – neodymium magnets are pricier than other types of magnets (e.g., ferrite), which can restrict large-scale applications

Handle with Care: Neodymium Magnets

People with pacemakers are advised to avoid neodymium magnets.

Neodymium magnets generate very strong magnetic fields that can interfere with the operation of a pacemaker. This is because many of these devices are equipped with a function that deactivates the device in a magnetic field.

Neodymium magnets can become demagnetized at high temperatures.

Although magnets have demonstrated their effectiveness up to 80°C or 175°F, the temperature can vary depending on the type, shape, and intended use of the specific magnet.

Dust and powder from neodymium magnets are highly 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.

Magnets made of neodymium are fragile as well as can easily crack and shatter.

Neodymium magnets are fragile as well as 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.

Neodymium magnets are over 10 times stronger 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 swellings to your body and prevent damage to the magnets.

Never bring neodymium magnets close to a phone and GPS.

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

Make sure not to bring neodymium magnets close to the TV, wallet, and computer HDD.

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, etc. devices. They can also damage devices like video players, televisions, CRT computer monitors. Remember not to place neodymium magnets close to these electronic devices.

Neodymium magnets are primarily characterized by their significant internal force. They attract to each other, and any object that comes in their way will be affected.

Neodymium magnets jump and also touch each other mutually within a radius of several to around 10 cm from each other.

The magnet is coated with nickel - be careful 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.

Maintain neodymium magnets away from children.

Not all neodymium magnets are toys, so do not let children play with them. In such a situation, surgery is necessary to remove them. In the worst case scenario, it can result in death.

Safety rules!

Please read the article - What danger lies in neodymium magnets? You will learn how to handle them properly.