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MPL 5x5x1 / N38 - lamellar magnet

lamellar magnet

Catalog no 020170

GTIN/EAN: 5906301811763

5.00

length

5 mm [±0,1 mm]

Width

5 mm [±0,1 mm]

Height

1 mm [±0,1 mm]

Weight

0.19 g

Magnetization Direction

↑ axial

Load capacity

0.34 kg / 3.30 N

Magnetic Induction

209.53 mT / 2095 Gs

Coating

[NiCuNi] Nickel

0.1845 with VAT / pcs + price for transport

0.1500 ZŁ net + 23% VAT / pcs

bulk discounts:

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Technical parameters of the product - MPL 5x5x1 / N38 - lamellar magnet

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

properties
properties values
Cat. no. 020170
GTIN/EAN 5906301811763
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 1 mm [±0,1 mm]
Weight 0.19 g
Magnetization Direction ↑ axial
Load capacity ~ ? 0.34 kg / 3.30 N
Magnetic Induction ~ ? 209.53 mT / 2095 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 5x5x1 / N38 - lamellar magnet
properties values units
remenance Br [min. - max.] ? 12.2-12.6 kGs
remenance Br [min. - max.] ? 1220-1260 mT
coercivity bHc ? 10.8-11.5 kOe
coercivity bHc ? 860-915 kA/m
actual internal force iHc ≥ 12 kOe
actual internal force iHc ≥ 955 kA/m
energy density [min. - max.] ? 36-38 BH max MGOe
energy density [min. - max.] ? 287-303 BH max KJ/m
max. 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 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 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

Engineering simulation of the product - technical parameters

Presented values are the outcome of a physical analysis. Values were calculated on models for the material Nd2Fe14B. Operational conditions might slightly deviate from the simulation results. Treat these data as a supplementary guide when designing systems.

Table 1: Static pull force (force vs distance) - interaction chart
MPL 5x5x1 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 2094 Gs
209.4 mT
0.34 kg / 0.75 lbs
340.0 g / 3.3 N
safe
1 mm 1514 Gs
151.4 mT
0.18 kg / 0.39 lbs
177.8 g / 1.7 N
safe
2 mm 922 Gs
92.2 mT
0.07 kg / 0.15 lbs
65.9 g / 0.6 N
safe
3 mm 543 Gs
54.3 mT
0.02 kg / 0.05 lbs
22.9 g / 0.2 N
safe
5 mm 209 Gs
20.9 mT
0.00 kg / 0.01 lbs
3.4 g / 0.0 N
safe
10 mm 38 Gs
3.8 mT
0.00 kg / 0.00 lbs
0.1 g / 0.0 N
safe
15 mm 13 Gs
1.3 mT
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
safe
20 mm 6 Gs
0.6 mT
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
safe
30 mm 2 Gs
0.2 mT
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
safe
50 mm 0 Gs
0.0 mT
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
safe

Table 2: Sliding force (wall)
MPL 5x5x1 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.07 kg / 0.15 lbs
68.0 g / 0.7 N
1 mm Stal (~0.2) 0.04 kg / 0.08 lbs
36.0 g / 0.4 N
2 mm Stal (~0.2) 0.01 kg / 0.03 lbs
14.0 g / 0.1 N
3 mm Stal (~0.2) 0.00 kg / 0.01 lbs
4.0 g / 0.0 N
5 mm Stal (~0.2) 0.00 kg / 0.00 lbs
0.0 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: Wall mounting (shearing) - behavior on slippery surfaces
MPL 5x5x1 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.10 kg / 0.22 lbs
102.0 g / 1.0 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.07 kg / 0.15 lbs
68.0 g / 0.7 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.03 kg / 0.07 lbs
34.0 g / 0.3 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.17 kg / 0.37 lbs
170.0 g / 1.7 N

Table 4: Material efficiency (substrate influence) - sheet metal selection
MPL 5x5x1 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
0.03 kg / 0.07 lbs
34.0 g / 0.3 N
1 mm
25%
0.09 kg / 0.19 lbs
85.0 g / 0.8 N
2 mm
50%
0.17 kg / 0.37 lbs
170.0 g / 1.7 N
3 mm
75%
0.26 kg / 0.56 lbs
255.0 g / 2.5 N
5 mm
100%
0.34 kg / 0.75 lbs
340.0 g / 3.3 N
10 mm
100%
0.34 kg / 0.75 lbs
340.0 g / 3.3 N
11 mm
100%
0.34 kg / 0.75 lbs
340.0 g / 3.3 N
12 mm
100%
0.34 kg / 0.75 lbs
340.0 g / 3.3 N

Table 5: Thermal resistance (stability) - resistance threshold
MPL 5x5x1 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 0.34 kg / 0.75 lbs
340.0 g / 3.3 N
OK
40 °C -2.2% 0.33 kg / 0.73 lbs
332.5 g / 3.3 N
OK
60 °C -4.4% 0.33 kg / 0.72 lbs
325.0 g / 3.2 N
80 °C -6.6% 0.32 kg / 0.70 lbs
317.6 g / 3.1 N
100 °C -28.8% 0.24 kg / 0.53 lbs
242.1 g / 2.4 N

Table 6: Magnet-Magnet interaction (repulsion) - field range
MPL 5x5x1 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Sliding Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 0.68 kg / 1.49 lbs
3 601 Gs
0.10 kg / 0.22 lbs
101 g / 1.0 N
N/A
1 mm 0.52 kg / 1.15 lbs
3 682 Gs
0.08 kg / 0.17 lbs
78 g / 0.8 N
0.47 kg / 1.04 lbs
~0 Gs
2 mm 0.35 kg / 0.78 lbs
3 028 Gs
0.05 kg / 0.12 lbs
53 g / 0.5 N
0.32 kg / 0.70 lbs
~0 Gs
3 mm 0.22 kg / 0.48 lbs
2 388 Gs
0.03 kg / 0.07 lbs
33 g / 0.3 N
0.20 kg / 0.44 lbs
~0 Gs
5 mm 0.08 kg / 0.17 lbs
1 413 Gs
0.01 kg / 0.03 lbs
12 g / 0.1 N
0.07 kg / 0.15 lbs
~0 Gs
10 mm 0.01 kg / 0.01 lbs
417 Gs
0.00 kg / 0.00 lbs
1 g / 0.0 N
0.00 kg / 0.00 lbs
~0 Gs
20 mm 0.00 kg / 0.00 lbs
77 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
6 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
3 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
2 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
1 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
1 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: Safety (HSE) (implants) - precautionary measures
MPL 5x5x1 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 2.5 cm
Hearing aid 10 Gs (1.0 mT) 2.0 cm
Mechanical watch 20 Gs (2.0 mT) 1.5 cm
Mobile device 40 Gs (4.0 mT) 1.0 cm
Car key 50 Gs (5.0 mT) 1.0 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) - warning
MPL 5x5x1 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 42.67 km/h
(11.85 m/s)
0.01 J
30 mm 73.89 km/h
(20.53 m/s)
0.04 J
50 mm 95.40 km/h
(26.50 m/s)
0.07 J
100 mm 134.91 km/h
(37.48 m/s)
0.13 J

Table 9: Surface protection spec
MPL 5x5x1 / 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 (Flux)
MPL 5x5x1 / N38

Parameter Value SI Unit / Description
Magnetic Flux 615 Mx 6.2 µWb
Pc Coefficient 0.26 Low (Flat)

Table 11: Underwater work (magnet fishing)
MPL 5x5x1 / N38

Environment Effective steel pull Effect
Air (land) 0.34 kg Standard
Water (riverbed) 0.39 kg
(+0.05 kg buoyancy gain)
+14.5%
Rust risk: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.
1. Vertical hold

*Note: On a vertical surface, the magnet holds only approx. 20-30% of its nominal pull.

2. Efficiency vs thickness

*Thin steel (e.g. computer case) drastically weakens the holding force.

3. Power loss vs temp

*For standard magnets, the max working temp is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.26

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.

Engineering data and GPSR
Chemical composition
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%
Environmental data
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: 020170-2026
Quick Unit Converter
Force (pull)

Magnetic Field

Other proposals

This product is a very powerful magnet in the shape of a plate made of NdFeB material, which, with dimensions of 5x5x1 mm and a weight of 0.19 g, guarantees premium class connection. As a magnetic bar with high power (approx. 0.34 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.
Separating block magnets requires a technique based on sliding (moving one relative to the other), rather than forceful pulling apart. Watch your fingers! Magnets with a force of 0.34 kg can pinch very hard and cause hematomas. Using a screwdriver risks destroying the coating and permanently cracking the magnet.
Plate magnets MPL 5x5x1 / N38 are the foundation for many industrial devices, such as magnetic separators and linear motors. Thanks to the flat surface and high force (approx. 0.34 kg), they are ideal as hidden locks in furniture making and mounting elements in automation. Their rectangular shape facilitates precise gluing into milled sockets in wood or plastic.
For mounting flat magnets MPL 5x5x1 / N38, we recommend utilizing two-component adhesives (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. Remember to roughen and wash the magnet surface before gluing, which significantly increases the adhesion of the glue to the nickel coating.
Standardly, the MPL 5x5x1 / N38 model is magnetized axially (dimension 1 mm), which means that the N and S poles are located on its largest, flat surfaces. Thanks to this, it works best when "sticking" to sheet metal or another magnet with a large surface area. Such a pole arrangement ensures maximum holding capacity when pressing against the sheet, creating a closed magnetic circuit.
This model is characterized by dimensions 5x5x1 mm, which, at a weight of 0.19 g, makes it an element with high energy density. It is a magnetic block with dimensions 5x5x1 mm and a self-weight of 0.19 g, ready to work at temperatures up to 80°C. The protective [NiCuNi] coating secures the magnet against corrosion.

Strengths and weaknesses of rare earth magnets.

Strengths

Besides their tremendous pulling force, neodymium magnets offer the following advantages:
  • Their strength is maintained, and after approximately 10 years it decreases only by ~1% (theoretically),
  • They maintain their magnetic properties even under strong external field,
  • By covering with a decorative layer of silver, the element acquires an aesthetic look,
  • Neodymium magnets ensure maximum magnetic induction on a small surface, which ensures high operational effectiveness,
  • Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
  • Thanks to modularity in constructing and the ability to customize to unusual requirements,
  • Fundamental importance in future technologies – they are used in computer drives, drive modules, medical equipment, also multitasking production systems.
  • Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Weaknesses

Disadvantages of NdFeB magnets:
  • They are prone to damage upon too strong impacts. To avoid cracks, it is worth securing magnets in special housings. Such protection not only shields the magnet but also increases its resistance to damage
  • When exposed to high temperature, neodymium magnets suffer a drop in strength. 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
  • They rust in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
  • Due to limitations in producing nuts and complex shapes in magnets, we propose using cover - magnetic mount.
  • Possible danger related to microscopic parts of magnets pose a threat, when accidentally swallowed, which becomes key in the context of child health protection. It is also worth noting that small elements of these products are able to complicate diagnosis medical after entering the body.
  • Due to neodymium price, their price is relatively high,

Lifting parameters

Highest magnetic holding forcewhat it depends on?

The lifting capacity listed is a measurement result executed under the following configuration:
  • with the application of a yoke made of low-carbon steel, guaranteeing maximum field concentration
  • with a thickness of at least 10 mm
  • characterized by smoothness
  • under conditions of ideal adhesion (metal-to-metal)
  • under perpendicular force direction (90-degree angle)
  • at standard ambient temperature

Determinants of lifting force in real conditions

During everyday use, the actual holding force depends on several key aspects, listed from the most important:
  • Distance (between the magnet and the plate), as even a tiny distance (e.g. 0.5 mm) can cause a drastic drop in force by up to 50% (this also applies to paint, rust or dirt).
  • Loading method – declared lifting capacity refers to detachment vertically. When attempting to slide, the magnet holds significantly lower power (typically approx. 20-30% of nominal force).
  • Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Thin sheet restricts the attraction force (the magnet "punches through" it).
  • Chemical composition of the base – mild steel gives the best results. Alloy admixtures decrease magnetic permeability and lifting capacity.
  • Base smoothness – the more even the plate, the larger the contact zone and higher the lifting capacity. Unevenness acts like micro-gaps.
  • Temperature influence – high temperature weakens magnetic field. Too high temperature can permanently demagnetize the magnet.

Lifting capacity was measured using a steel plate with a smooth surface of optimal thickness (min. 20 mm), under perpendicular pulling force, in contrast under shearing force the lifting capacity is smaller. In addition, even a minimal clearance between the magnet’s surface and the plate decreases the lifting capacity.

Warnings
Handling guide

Before starting, check safety instructions. Sudden snapping can destroy the magnet or hurt your hand. Be predictive.

Thermal limits

Control the heat. Heating the magnet above 80 degrees Celsius will ruin its properties and strength.

Risk of cracking

NdFeB magnets are sintered ceramics, which means they are fragile like glass. Collision of two magnets leads to them cracking into small pieces.

Threat to electronics

Avoid bringing magnets near a wallet, computer, or screen. The magnetism can destroy these devices and wipe information from cards.

Impact on smartphones

Navigation devices and smartphones are highly susceptible to magnetism. Direct contact with a strong magnet can ruin the internal compass in your phone.

Health Danger

For implant holders: Powerful magnets affect electronics. Keep at least 30 cm distance or ask another person to work with the magnets.

Allergic reactions

It is widely known that the nickel plating (standard magnet coating) is a strong allergen. For allergy sufferers, prevent touching magnets with bare hands and select versions in plastic housing.

Fire risk

Machining of NdFeB material poses a fire hazard. Neodymium dust reacts violently with oxygen and is hard to extinguish.

Do not give to children

Adult use only. Small elements can be swallowed, leading to serious injuries. Keep away from children and animals.

Pinching danger

Mind your fingers. Two powerful magnets will snap together immediately with a force of several hundred kilograms, crushing everything in their path. Exercise extreme caution!

Warning! Want to know more? Check our post: Are neodymium magnets dangerous?
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98