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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

The following data constitute the outcome of a physical analysis. Results are based on models for the class Nd2Fe14B. Real-world performance might slightly differ. Treat these data as a supplementary guide for designers.

Table 1: Static force (pull vs gap) - 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 pounds
340.0 g / 3.3 N
safe
1 mm 1514 Gs
151.4 mT
0.18 kg / 0.39 pounds
177.8 g / 1.7 N
safe
2 mm 922 Gs
92.2 mT
0.07 kg / 0.15 pounds
65.9 g / 0.6 N
safe
3 mm 543 Gs
54.3 mT
0.02 kg / 0.05 pounds
22.9 g / 0.2 N
safe
5 mm 209 Gs
20.9 mT
0.00 kg / 0.01 pounds
3.4 g / 0.0 N
safe
10 mm 38 Gs
3.8 mT
0.00 kg / 0.00 pounds
0.1 g / 0.0 N
safe
15 mm 13 Gs
1.3 mT
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
safe
20 mm 6 Gs
0.6 mT
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
safe
30 mm 2 Gs
0.2 mT
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
safe
50 mm 0 Gs
0.0 mT
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
safe

Table 2: Vertical load (wall)
MPL 5x5x1 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.07 kg / 0.15 pounds
68.0 g / 0.7 N
1 mm Stal (~0.2) 0.04 kg / 0.08 pounds
36.0 g / 0.4 N
2 mm Stal (~0.2) 0.01 kg / 0.03 pounds
14.0 g / 0.1 N
3 mm Stal (~0.2) 0.00 kg / 0.01 pounds
4.0 g / 0.0 N
5 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
10 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
15 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
20 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
30 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
50 mm Stal (~0.2) 0.00 kg / 0.00 pounds
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 pounds
102.0 g / 1.0 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.07 kg / 0.15 pounds
68.0 g / 0.7 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.03 kg / 0.07 pounds
34.0 g / 0.3 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.17 kg / 0.37 pounds
170.0 g / 1.7 N

Table 4: Material efficiency (saturation) - 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 pounds
34.0 g / 0.3 N
1 mm
25%
0.09 kg / 0.19 pounds
85.0 g / 0.8 N
2 mm
50%
0.17 kg / 0.37 pounds
170.0 g / 1.7 N
3 mm
75%
0.26 kg / 0.56 pounds
255.0 g / 2.5 N
5 mm
100%
0.34 kg / 0.75 pounds
340.0 g / 3.3 N
10 mm
100%
0.34 kg / 0.75 pounds
340.0 g / 3.3 N
11 mm
100%
0.34 kg / 0.75 pounds
340.0 g / 3.3 N
12 mm
100%
0.34 kg / 0.75 pounds
340.0 g / 3.3 N

Table 5: Thermal stability (material behavior) - 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 pounds
340.0 g / 3.3 N
OK
40 °C -2.2% 0.33 kg / 0.73 pounds
332.5 g / 3.3 N
OK
60 °C -4.4% 0.33 kg / 0.72 pounds
325.0 g / 3.2 N
80 °C -6.6% 0.32 kg / 0.70 pounds
317.6 g / 3.1 N
100 °C -28.8% 0.24 kg / 0.53 pounds
242.1 g / 2.4 N

Table 6: Two magnets (attraction) - forces in the system
MPL 5x5x1 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 0.68 kg / 1.49 pounds
3 601 Gs
0.10 kg / 0.22 pounds
101 g / 1.0 N
N/A
1 mm 0.52 kg / 1.15 pounds
3 682 Gs
0.08 kg / 0.17 pounds
78 g / 0.8 N
0.47 kg / 1.04 pounds
~0 Gs
2 mm 0.35 kg / 0.78 pounds
3 028 Gs
0.05 kg / 0.12 pounds
53 g / 0.5 N
0.32 kg / 0.70 pounds
~0 Gs
3 mm 0.22 kg / 0.48 pounds
2 388 Gs
0.03 kg / 0.07 pounds
33 g / 0.3 N
0.20 kg / 0.44 pounds
~0 Gs
5 mm 0.08 kg / 0.17 pounds
1 413 Gs
0.01 kg / 0.03 pounds
12 g / 0.1 N
0.07 kg / 0.15 pounds
~0 Gs
10 mm 0.01 kg / 0.01 pounds
417 Gs
0.00 kg / 0.00 pounds
1 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs
20 mm 0.00 kg / 0.00 pounds
77 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs
50 mm 0.00 kg / 0.00 pounds
6 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs
60 mm 0.00 kg / 0.00 pounds
3 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs
70 mm 0.00 kg / 0.00 pounds
2 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs
80 mm 0.00 kg / 0.00 pounds
1 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs
90 mm 0.00 kg / 0.00 pounds
1 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs
100 mm 0.00 kg / 0.00 pounds
1 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs

Table 7: Hazards (electronics) - 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
Phone / Smartphone 40 Gs (4.0 mT) 1.0 cm
Remote 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: Collisions (cracking risk) - 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: Corrosion resistance
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: Electrical data (Pc)
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%
Warning: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!
1. Wall mount (shear)

*Warning: On a vertical surface, the magnet retains merely ~20% of its perpendicular strength.

2. Efficiency vs thickness

*Thin steel (e.g. 0.5mm PC case) severely reduces the holding force.

3. Power loss vs temp

*For N38 material, 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

The chart above illustrates the magnetic characteristics of the material within the second quadrant of the hysteresis loop. 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 specification and ecology
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: 020170-2026
Quick Unit Converter
Force (pull)

Field Strength

Other products

Model MPL 5x5x1 / N38 features a flat shape and industrial pulling force, making it an ideal solution for building separators and machines. This magnetic block with a force of 3.30 N is ready for shipment in 24h, allowing for rapid realization of your project. Furthermore, its Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, giving it an aesthetic appearance.
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. Never use metal tools for prying, as the brittle NdFeB material may chip and damage your eyes.
Plate magnets MPL 5x5x1 / 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. Their rectangular shape facilitates precise gluing into milled sockets in wood or plastic.
For mounting flat magnets MPL 5x5x1 / N38, it is best to use strong epoxy glues (e.g., UHU Endfest, Distal), which ensure a durable bond with metal or plastic. For lighter applications or mounting on smooth surfaces, branded foam tape (e.g., 3M VHB) will work, provided the surface is perfectly degreased. Remember to clean and degrease 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. In practice, this means that this magnet has the greatest attraction force on its main planes (5x5 mm), which is ideal for flat mounting. This is the most popular configuration for block magnets used in separators and holders.
This model is characterized by dimensions 5x5x1 mm, which, at a weight of 0.19 g, makes it an element with high energy density. The key parameter here is the holding force amounting to approximately 0.34 kg (force ~3.30 N), which, with such a flat shape, proves the high power of the material. The product meets the standards for N38 grade magnets.

Strengths as well as weaknesses of rare earth magnets.

Pros

In addition to their magnetic efficiency, neodymium magnets provide the following advantages:
  • They virtually do not lose strength, because even after 10 years the performance loss is only ~1% (according to literature),
  • Magnets effectively resist against loss of magnetization caused by foreign field sources,
  • Thanks to the reflective finish, the plating of nickel, gold-plated, or silver-plated gives an modern appearance,
  • Magnetic induction on the surface of the magnet is maximum,
  • Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
  • Thanks to flexibility in forming and the capacity to customize to specific needs,
  • Versatile presence in future technologies – they serve a role in HDD drives, drive modules, diagnostic systems, also modern systems.
  • Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Cons

Characteristics of disadvantages of neodymium magnets: weaknesses and usage proposals
  • Brittleness is one of their disadvantages. Upon strong impact they can fracture. We recommend keeping them in a special holder, which not only secures them against impacts but also increases their durability
  • Neodymium magnets lose their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
  • When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation and corrosion.
  • We recommend casing - magnetic holder, due to difficulties in realizing threads inside the magnet and complicated forms.
  • Possible danger related to microscopic parts of magnets are risky, when accidentally swallowed, which is particularly important in the context of child safety. Additionally, small elements of these magnets can complicate diagnosis medical in case of swallowing.
  • Due to complex production process, their price is relatively high,

Lifting parameters

Breakaway strength of the magnet in ideal conditionswhat it depends on?

The load parameter shown represents the peak performance, obtained under laboratory conditions, meaning:
  • on a base made of structural steel, effectively closing the magnetic field
  • whose thickness equals approx. 10 mm
  • with a surface cleaned and smooth
  • under conditions of no distance (metal-to-metal)
  • under vertical application of breakaway force (90-degree angle)
  • at temperature room level

Practical lifting capacity: influencing factors

Bear in mind that the working load may be lower influenced by the following factors, in order of importance:
  • Distance – the presence of foreign body (paint, dirt, air) acts as an insulator, which reduces capacity steeply (even by 50% at 0.5 mm).
  • Loading method – declared lifting capacity refers to pulling vertically. When applying parallel force, the magnet exhibits much less (often approx. 20-30% of maximum force).
  • Plate thickness – insufficiently thick plate does not accept the full field, causing part of the power to be wasted into the air.
  • Steel grade – ideal substrate is high-permeability steel. Cast iron may have worse magnetic properties.
  • Smoothness – full contact is obtained only on smooth steel. Rough texture reduce the real contact area, weakening the magnet.
  • Temperature – temperature increase results in weakening of induction. Check the thermal limit for a given model.

Holding force was checked on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, in contrast under shearing force the holding force is lower. In addition, even a small distance between the magnet and the plate decreases the load capacity.

Warnings
Metal Allergy

Warning for allergy sufferers: The nickel-copper-nickel coating contains nickel. If skin irritation happens, immediately stop working with magnets and use protective gear.

Medical interference

For implant holders: Powerful magnets affect medical devices. Maintain minimum 30 cm distance or request help to work with the magnets.

Safe distance

Data protection: Strong magnets can damage data carriers and sensitive devices (pacemakers, hearing aids, timepieces).

No play value

Always store magnets out of reach of children. Choking hazard is significant, and the consequences of magnets clamping inside the body are life-threatening.

Do not drill into magnets

Machining of NdFeB material poses a fire risk. Magnetic powder oxidizes rapidly with oxygen and is hard to extinguish.

Maximum temperature

Standard neodymium magnets (grade N) lose power when the temperature goes above 80°C. This process is irreversible.

Compass and GPS

Remember: rare earth magnets generate a field that confuses sensitive sensors. Maintain a safe distance from your phone, device, and GPS.

Crushing force

Risk of injury: The attraction force is so great that it can result in hematomas, crushing, and broken bones. Protective gloves are recommended.

Conscious usage

Exercise caution. Neodymium magnets attract from a long distance and snap with huge force, often faster than you can move away.

Material brittleness

NdFeB magnets are ceramic materials, which means they are fragile like glass. Clashing of two magnets leads to them shattering into shards.

Warning! Need more info? Check our post: Why are neodymium magnets dangerous?