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MPL 5x5x2 / N38 - lamellar magnet

lamellar magnet

Catalog no 020173

GTIN/EAN: 5906301811794

5.00
Load capacity 0.77 kg / 7.57 N Magnetic Induction 360.52 mT / 3605 Gs
length
5 mm [±0,1 mm]
Width
5 mm [±0,1 mm]
Height
2 mm [±0,1 mm]
Weight
0.38 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

0.250net / pcs

0.308 zł with VAT (23% VAT) / pcs

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price from 1 pcs
0.250 zł
0.308 zł
price from 2400 pcs
0.235 zł
0.289 zł
price from 10000 pcs
0.220 zł
0.271 zł

Frequently asked questions

How much will a block magnet really hold?
The catalogue force is measured in full contact with smooth steel at least 10 mm thick, pulled perpendicular, at about 20 °C. On 1 mm sheet about 50% of that value remains, on 0.5 mm about 25%. Mounted on a vertical wall the realistic figure is 20–30%, because the load is then in shear rather than in tension.
What is the maximum working temperature?
Standard N-series grades up to 80 °C, and N50, N52 and N54 up to 60 °C. Above the maximum working temperature the loss stops being reversible. The Curie temperature, at which magnetic properties are lost completely, is about 310 °C.
What safety factor should I allow?
At least twice the mass of the item, and three to five times for vertical mounting. The margin covers sheet thickness, surface condition, any layer of paint or rust, and vibration.

Engineering report for this magnet

Full PDF analysis: pull and shear force, effect of distance, temperature and plate thickness, safety distances and the demagnetization curve.

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Call us now +48 888 99 98 98 alternatively let us know using contact form the contact section.
Specifications and structure of a neodymium magnet can be estimated using our power calculator.

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Technical details - MPL 5x5x2 / N38 - lamellar magnet

Specification / characteristics - MPL 5x5x2 / N38 - lamellar magnet

properties
properties values
Cat. no. 020173
GTIN/EAN 5906301811794
Production/Distribution Dhit sp. z o.o.
ul. Zielona 14 05-850 Ożarów Mazowiecki PL
Country of origin Poland / China / Germany
Customs code 85059029
length 5 mm [±0,1 mm]
Width 5 mm [±0,1 mm]
Height 2 mm [±0,1 mm]
Weight 0.38 g
Magnetization Direction ↑ axial
Load capacity ~ ? 0.77 kg / 7.57 N
Magnetic Induction ~ ? 360.52 mT / 3605 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 5x5x2 / N38 - lamellar magnet
properties values units
Remanence Br ? 12.2-12.6 kGs
Remanence Br ? 1220-1260 mT
Coercivity bHc ? 10.8-11.5 kOe
Coercivity bHc ? 860-915 kA/m
Intrinsic coercivity iHc ≥ 12 kOe
Intrinsic coercivity iHc ≥ 955 kA/m
Energy product BHmax ? 36-38 BH max MGOe
Energy product BHmax ? 287-303 BH max KJ/m
Maximum working temperature ? ≤ 80 °C

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C
properties values units
Vickers hardness ≥550 Hv
Density ≥7.4 g/cm3
Curie Temperature TC 310 °C
Curie Temperature TF 590 °F
Specific resistance 150 μΩ⋅cm
Bending strength 250 MPa
Compressive strength 1000~1100 MPa
Thermal expansion parallel (∥) to orientation (M) (3-4) x 10-6 °C-1
Thermal expansion perpendicular (⊥) to orientation (M) -(1-3) x 10-6 °C-1
Young's modulus 1.7 x 104 kg/mm²

Technical simulation of the product - data

These information are the outcome of a physical analysis. Values are based on algorithms for the material Nd2Fe14B. Operational performance may differ from theoretical values. Treat these calculations as a reference point during assembly planning.

Table 1: Static force (force vs gap) - characteristics
MPL 5x5x2 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 3601 Gs
360.1 mT
0.77 kg / 1.70 LBS
770.0 g / 7.6 N
safe
1 mm 2436 Gs
243.6 mT
0.35 kg / 0.78 LBS
352.2 g / 3.5 N
safe
2 mm 1464 Gs
146.4 mT
0.13 kg / 0.28 LBS
127.3 g / 1.2 N
safe
3 mm 872 Gs
87.2 mT
0.05 kg / 0.10 LBS
45.1 g / 0.4 N
safe
5 mm 347 Gs
34.7 mT
0.01 kg / 0.02 LBS
7.2 g / 0.1 N
safe
10 mm 68 Gs
6.8 mT
0.00 kg / 0.00 LBS
0.3 g / 0.0 N
safe
15 mm 23 Gs
2.3 mT
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
safe
20 mm 10 Gs
1.0 mT
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
safe
30 mm 3 Gs
0.3 mT
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
safe
50 mm 1 Gs
0.1 mT
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
safe

Table 2: Sliding load (vertical surface)
MPL 5x5x2 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.15 kg / 0.34 LBS
154.0 g / 1.5 N
1 mm Stal (~0.2) 0.07 kg / 0.15 LBS
70.0 g / 0.7 N
2 mm Stal (~0.2) 0.03 kg / 0.06 LBS
26.0 g / 0.3 N
3 mm Stal (~0.2) 0.01 kg / 0.02 LBS
10.0 g / 0.1 N
5 mm Stal (~0.2) 0.00 kg / 0.00 LBS
2.0 g / 0.0 N
10 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
15 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
20 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
30 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
50 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MPL 5x5x2 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.23 kg / 0.51 LBS
231.0 g / 2.3 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.15 kg / 0.34 LBS
154.0 g / 1.5 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.08 kg / 0.17 LBS
77.0 g / 0.8 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.39 kg / 0.85 LBS
385.0 g / 3.8 N

Table 4: Steel thickness (substrate influence) - power losses
MPL 5x5x2 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
0.08 kg / 0.17 LBS
77.0 g / 0.8 N
1 mm
25%
0.19 kg / 0.42 LBS
192.5 g / 1.9 N
2 mm
50%
0.39 kg / 0.85 LBS
385.0 g / 3.8 N
3 mm
75%
0.58 kg / 1.27 LBS
577.5 g / 5.7 N
5 mm
100%
0.77 kg / 1.70 LBS
770.0 g / 7.6 N
10 mm
100%
0.77 kg / 1.70 LBS
770.0 g / 7.6 N
11 mm
100%
0.77 kg / 1.70 LBS
770.0 g / 7.6 N
12 mm
100%
0.77 kg / 1.70 LBS
770.0 g / 7.6 N

Table 5: Thermal stability (material behavior) - thermal limit
MPL 5x5x2 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 0.77 kg / 1.70 LBS
770.0 g / 7.6 N
OK
40 °C -2.2% 0.75 kg / 1.66 LBS
753.1 g / 7.4 N
OK
60 °C -4.4% 0.74 kg / 1.62 LBS
736.1 g / 7.2 N
80 °C -6.6% 0.72 kg / 1.59 LBS
719.2 g / 7.1 N
100 °C -28.8% 0.55 kg / 1.21 LBS
548.2 g / 5.4 N

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MPL 5x5x2 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Sliding Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 2.00 kg / 4.41 LBS
5 058 Gs
0.30 kg / 0.66 LBS
300 g / 2.9 N
N/A
1 mm 1.42 kg / 3.13 LBS
6 070 Gs
0.21 kg / 0.47 LBS
213 g / 2.1 N
1.28 kg / 2.82 LBS
~0 Gs
2 mm 0.91 kg / 2.02 LBS
4 871 Gs
0.14 kg / 0.30 LBS
137 g / 1.3 N
0.82 kg / 1.81 LBS
~0 Gs
3 mm 0.56 kg / 1.23 LBS
3 801 Gs
0.08 kg / 0.18 LBS
83 g / 0.8 N
0.50 kg / 1.10 LBS
~0 Gs
5 mm 0.20 kg / 0.43 LBS
2 254 Gs
0.03 kg / 0.06 LBS
29 g / 0.3 N
0.18 kg / 0.39 LBS
~0 Gs
10 mm 0.02 kg / 0.04 LBS
695 Gs
0.00 kg / 0.01 LBS
3 g / 0.0 N
0.02 kg / 0.04 LBS
~0 Gs
20 mm 0.00 kg / 0.00 LBS
136 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
0.00 kg / 0.00 LBS
~0 Gs
50 mm 0.00 kg / 0.00 LBS
11 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
0.00 kg / 0.00 LBS
~0 Gs
60 mm 0.00 kg / 0.00 LBS
7 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
0.00 kg / 0.00 LBS
~0 Gs
70 mm 0.00 kg / 0.00 LBS
4 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
0.00 kg / 0.00 LBS
~0 Gs
80 mm 0.00 kg / 0.00 LBS
3 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
0.00 kg / 0.00 LBS
~0 Gs
90 mm 0.00 kg / 0.00 LBS
2 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
0.00 kg / 0.00 LBS
~0 Gs
100 mm 0.00 kg / 0.00 LBS
1 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
0.00 kg / 0.00 LBS
~0 Gs

Table 7: Hazards (electronics) - warnings
MPL 5x5x2 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 3.0 cm
Hearing aid 10 Gs (1.0 mT) 2.5 cm
Timepiece 20 Gs (2.0 mT) 2.0 cm
Mobile device 40 Gs (4.0 mT) 1.5 cm
Remote 50 Gs (5.0 mT) 1.5 cm
Payment card 400 Gs (40.0 mT) 0.5 cm
HDD hard drive 600 Gs (60.0 mT) 0.5 cm

Table 8: Impact energy (kinetic energy) - collision effects
MPL 5x5x2 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 24.62 km/h
(6.84 m/s)
0.01 J
30 mm 24.63 km/h
(6.84 m/s)
0.01 J
50 mm 24.62 km/h
(6.84 m/s)
0.01 J
100 mm 24.63 km/h
(6.84 m/s)
0.01 J

Table 9: Coating parameters (durability)
MPL 5x5x2 / N38

Technical parameter Value / Description
Coating type [NiCuNi] Nickel
Layer structure Nickel - Copper - Nickel
Layer thickness 10-20 µm
Salt spray test (SST) ? 24 h
Recommended environment Indoors only (dry)

Table 10: Construction data (Pc)
MPL 5x5x2 / N38

Parameter Value SI Unit / Description
Magnetic Flux 940 Mx 9.4 µWb
Pc Coefficient 0.46 Low (Flat)

Table 11: Underwater work (magnet fishing)
MPL 5x5x2 / N38

Environment Effective steel pull Effect
Air (land) 0.77 kg Standard
Water (riverbed) 0.88 kg
(+0.11 kg buoyancy gain)
+14.5%
Corrosion warning: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.

1. Vertical hold

*Caution: On a vertical wall, the magnet retains merely approx. 20-30% of its nominal pull.

2. Plate thickness effect

*Thin steel (e.g. 0.5mm PC case) drastically limits the holding force.

3. Power loss vs temp

*For N38 material, the critical limit is 80°C.

4. Demagnetization curve and operating point (B-H)

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.46

This simulation demonstrates the magnetic stability of the selected magnet under specific geometric conditions. The solid red line represents the demagnetization curve (material potential), while the dashed blue line is the load line based on the magnet's geometry. The Pc (Permeance Coefficient), also known as the load line slope, is a dimensionless value that describes the relationship between the magnet's shape and its magnetic stability. The intersection of these two lines (the black dot) is the operating point — it determines the actual magnetic flux density generated by the magnet in this specific configuration. A higher Pc value means the magnet is more 'slender' (tall relative to its area), resulting in a higher operating point and better resistance to irreversible demagnetization caused by external fields or temperature. A value of 0.42 is relatively low (typical for flat magnets), meaning the operating point is closer to the 'knee' of the curve — caution is advised when operating at temperatures near the maximum limit to avoid strength loss.

Technical and environmental data

Elemental analysis

iron (Fe) 64% – 68%
neodymium (Nd) 29% – 32%
boron (B) 1.1% – 1.2%
dysprosium (Dy) 0.5% – 2.0%
coating (Ni-Cu-Ni) < 0.05%

Sustainability

recyclability (EoL) 100%
recycled raw materials ~10% (pre-cons)
carbon footprint low / zredukowany
waste code (EWC) 16 02 16
Safety card (GPSR)
responsible entity
Dhit sp. z o.o.
ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki
tel: +48 22 499 98 98 | e-mail: bok@dhit.pl
batch number/type
id: 020173-2026
Measurement Calculator

Magnet pull force


Field Strength

Other deals

This product is a very powerful magnet in the shape of a plate made of NdFeB material, which, with dimensions of 5x5x2 mm and a weight of 0.38 g, guarantees premium class connection. As a magnetic bar with high power (approx. 0.77 kg), this product is available off-the-shelf from our warehouse in Poland. The durable anti-corrosion layer ensures a long lifespan in a dry environment, protecting the core from oxidation.
The key to success is sliding the magnets along their largest connection plane (using e.g., the edge of a table), which is easier than trying to tear them apart directly. To separate the MPL 5x5x2 / N38 model, firmly slide one magnet over the edge of the other until the attraction force decreases. We recommend care, because after separation, the magnets may want to violently snap back together, which threatens pinching the skin. Using a screwdriver risks destroying the coating and permanently cracking the magnet.
Plate magnets MPL 5x5x2 / N38 are the foundation for many industrial devices, such as filters catching filings and linear motors. They work great as fasteners under tiles, wood, or glass. Customers often choose this model for workshop organization on strips and for advanced DIY and modeling projects, where precision and power count.
For mounting flat magnets MPL 5x5x2 / N38, it is best to use strong epoxy glues (e.g., UHU Endfest, Distal), which ensure a durable bond with metal or plastic. Double-sided tape cushions vibrations, which is an advantage when mounting in moving elements. Avoid chemically aggressive glues or hot glue, which can demagnetize neodymium (above 80°C).
The magnetic axis runs through the shortest dimension, which is typical for gripper magnets. Thanks to this, it works best when "sticking" to sheet metal or another magnet with a large surface area. This is the most popular configuration for block magnets used in separators and holders.
The presented product is a neodymium magnet with precisely defined parameters: 5 mm (length), 5 mm (width), and 2 mm (thickness). The key parameter here is the lifting capacity amounting to approximately 0.77 kg (force ~7.57 N), which, with such a compact shape, proves the high power of the material. The product meets the standards for N38 grade magnets.

Pros and cons of neodymium magnets.

Advantages

Besides their magnetic performance, neodymium magnets are valued for these benefits:
  • They virtually do not lose power, because even after 10 years the performance loss is only ~1% (according to literature),
  • Neodymium magnets prove to be exceptionally resistant to loss of magnetic properties caused by external magnetic fields,
  • Thanks to the reflective finish, the layer of nickel, gold, or silver gives an aesthetic appearance,
  • Neodymium magnets deliver maximum magnetic induction on a contact point, which allows for strong attraction,
  • Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
  • Possibility of exact shaping as well as adjusting to complex needs,
  • Wide application in electronics industry – they are commonly used in data components, brushless drives, medical equipment, and modern systems.
  • Relatively small size with high pulling force – neodymium magnets offer high power in tiny dimensions, which makes them useful in compact constructions

Disadvantages

Disadvantages of neodymium magnets:
  • At strong impacts they can break, therefore we advise placing them in special holders. A metal housing provides additional protection against damage and increases the magnet's durability.
  • When exposed to high temperature, neodymium magnets experience a drop in power. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
  • Magnets exposed to a humid environment can corrode. Therefore when using outdoors, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture
  • We recommend casing - magnetic mount, due to difficulties in creating threads inside the magnet and complex shapes.
  • Possible danger related to microscopic parts of magnets can be dangerous, when accidentally swallowed, which becomes key in the context of child safety. Furthermore, tiny parts of these magnets can be problematic in diagnostics medical in case of swallowing.
  • With mass production the cost of neodymium magnets is economically unviable,

Lifting parameters

Breakaway strength of the magnet in ideal conditionswhat contributes to it?

Holding force of 0.77 kg is a result of laboratory testing executed under the following configuration:
  • on a plate made of mild steel, effectively closing the magnetic field
  • possessing a massiveness of min. 10 mm to avoid saturation
  • characterized by smoothness
  • with zero gap (no impurities)
  • under perpendicular force direction (90-degree angle)
  • in temp. approx. 20°C

Practical aspects of lifting capacity – factors

Real force is influenced by working environment parameters, including (from priority):
  • Gap between magnet and steel – every millimeter of separation (caused e.g. by varnish or dirt) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
  • Force direction – catalog parameter refers to detachment vertically. When slipping, the magnet holds significantly lower power (often approx. 20-30% of nominal force).
  • Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Thin sheet limits the lifting capacity (the magnet "punches through" it).
  • Chemical composition of the base – low-carbon steel attracts best. Alloy admixtures decrease magnetic permeability and holding force.
  • Surface structure – the more even the surface, the larger the contact zone and higher the lifting capacity. Roughness acts like micro-gaps.
  • Thermal factor – high temperature weakens magnetic field. Too high temperature can permanently damage the magnet.

Lifting capacity testing was carried out on a smooth plate of suitable thickness, under perpendicular forces, however under attempts to slide the magnet the lifting capacity is smaller. Moreover, even a minimal clearance between the magnet and the plate decreases the lifting capacity.

Precautions when working with NdFeB magnets
Compass and GPS

Note: neodymium magnets generate a field that interferes with sensitive sensors. Maintain a separation from your phone, tablet, and GPS.

Handling rules

Before use, read the rules. Sudden snapping can destroy the magnet or injure your hand. Think ahead.

Threat to electronics

Avoid bringing magnets near a wallet, computer, or screen. The magnetism can permanently damage these devices and erase data from cards.

Dust is flammable

Drilling and cutting of neodymium magnets poses a fire hazard. Neodymium dust reacts violently with oxygen and is hard to extinguish.

Pinching danger

Large magnets can smash fingers instantly. Never place your hand betwixt two strong magnets.

Shattering risk

Despite metallic appearance, the material is brittle and cannot withstand shocks. Do not hit, as the magnet may crumble into hazardous fragments.

Warning for heart patients

For implant holders: Strong magnetic fields affect medical devices. Keep at least 30 cm distance or ask another person to work with the magnets.

Nickel coating and allergies

A percentage of the population experience a sensitization to Ni, which is the typical protective layer for neodymium magnets. Prolonged contact may cause a rash. We recommend wear safety gloves.

Do not give to children

Neodymium magnets are not suitable for play. Accidental ingestion of multiple magnets may result in them connecting inside the digestive tract, which constitutes a severe health hazard and requires immediate surgery.

Do not overheat magnets

Regular neodymium magnets (N-type) lose power when the temperature exceeds 80°C. This process is irreversible.

Attention! Need more info? Read our article: Why are neodymium magnets dangerous?