MPL 40x15x5x2[7/3.5] / N38 - lamellar magnet

Product available Ships tomorrow

MPL 40x15x5x2[7/3.5] / N38 - lamellar magnet

Name: Dhit sp. z o.o.
Address: Kościuszki 6A, Ożarów Mazowiecki, Poland, 05-850, PL
Telephone: +48 22 499 98 98
Price range: 1-6500
Rating: 5

lamellar magnet

Catalog no 020154

GTIN/EAN: 5906301811602

5.00

length

40 mm [±0,1 mm]

Width

15 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

22.5 g

Magnetization Direction

↑ axial

Load capacity

11.35 kg / 111.37 N

Magnetic Induction

249.11 mT / 2491 Gs

Coating

[NiCuNi] Nickel

15.07 ZŁ with VAT / pcs + price for transport

12.25 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

12.25 ZŁ

15.07 ZŁ

price from 50 pcs

11.51 ZŁ

14.16 ZŁ

price from 210 pcs

10.78 ZŁ

13.26 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Want to talk magnets?

Give us a call +48 22 499 98 98 otherwise get in touch through request form the contact page.
Parameters along with shape of a magnet can be reviewed on our magnetic calculator.

Orders placed before 14:00 will be shipped the same business day.

MPL 40x15x5x2[7/3.5] / N38 - lamellar magnet

Specification / characteristics MPL 40x15x5x2[7/3.5] / N38 - lamellar magnet

properties

properties	values
Cat. no.	020154
GTIN/EAN	5906301811602
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	40 mm [±0,1 mm]
Width	15 mm [±0,1 mm]
Height	5 mm [±0,1 mm]
Weight	22.5 g
Magnetization Direction	↑ axial
Load capacity ~ ?	11.35 kg / 111.37 N
Magnetic Induction ~ ?	249.11 mT / 2491 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 40x15x5x2[7/3.5] / 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

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

Technical analysis of the magnet - technical parameters

These information constitute the outcome of a engineering analysis. Values were calculated on models for the class Nd₂Fe₁₄B. Actual conditions may differ from theoretical values. Use these calculations as a reference point for designers.

Table 1: Static pull force (pull vs distance) - characteristics
MPL 40x15x5x2[7/3.5] / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg)	Risk Status
0 mm	2490 Gs 249.0 mT	11.35 kg / 11350.0 g 111.3 N	crushing
1 mm	2306 Gs 230.6 mT	9.73 kg / 9731.3 g 95.5 N	strong
2 mm	2095 Gs 209.5 mT	8.03 kg / 8028.8 g 78.8 N	strong
3 mm	1877 Gs 187.7 mT	6.45 kg / 6445.4 g 63.2 N	strong
5 mm	1472 Gs 147.2 mT	3.97 kg / 3965.1 g 38.9 N	strong
10 mm	792 Gs 79.2 mT	1.15 kg / 1147.1 g 11.3 N	weak grip
15 mm	454 Gs 45.4 mT	0.38 kg / 376.9 g 3.7 N	weak grip
20 mm	278 Gs 27.8 mT	0.14 kg / 141.4 g 1.4 N	weak grip
30 mm	122 Gs 12.2 mT	0.03 kg / 27.0 g 0.3 N	weak grip
50 mm	35 Gs 3.5 mT	0.00 kg / 2.3 g 0.0 N	weak grip

Pulling power drops significantly with every mm of gap. Keep in mind that even the smallest gap (e.g., dirt, paint, rust) noticeably diminishes the holding power. Magnets work most effectively at the point of direct contact; air break weakens the force. Observe how flashily the parameters fall, when the magnet does not adhere tightly to the steel surface. When planning the assembly, avoid redundant distances.

Table 2: Shear Load (Vertical Surface)
MPL 40x15x5x2[7/3.5] / N38

Distance (mm)	Friction coefficient	Pull Force (kg)
0 mm	Stal (~0.2)	2.27 kg / 2270.0 g 22.3 N
1 mm	Stal (~0.2)	1.95 kg / 1946.0 g 19.1 N
2 mm	Stal (~0.2)	1.61 kg / 1606.0 g 15.8 N
3 mm	Stal (~0.2)	1.29 kg / 1290.0 g 12.7 N
5 mm	Stal (~0.2)	0.79 kg / 794.0 g 7.8 N
10 mm	Stal (~0.2)	0.23 kg / 230.0 g 2.3 N
15 mm	Stal (~0.2)	0.08 kg / 76.0 g 0.7 N
20 mm	Stal (~0.2)	0.03 kg / 28.0 g 0.3 N
30 mm	Stal (~0.2)	0.01 kg / 6.0 g 0.1 N
50 mm	Stal (~0.2)	0.00 kg / 0.0 g 0.0 N

This section calculates the estimated shear load needed to initiate the shifting of the magnet vertically on a upright steel plate (assuming typical friction). This parameter depends on the gap size between the magnet and the surface.

Table 3: Vertical assembly (shearing) - vertical pull
MPL 40x15x5x2[7/3.5] / N38

Surface type	Friction coefficient / % Mocy	Max load (kg)
Raw steel	µ = 0.3 30% Nominalnej Siły	3.41 kg / 3405.0 g 33.4 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	2.27 kg / 2270.0 g 22.3 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	1.14 kg / 1135.0 g 11.1 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	5.68 kg / 5675.0 g 55.7 N

When hanging a magnet on a vertical surface (e.g., a fridge), it will only hold only approx. 20%-30% of nominal attraction strength. Gravity as well as a low friction coefficient mean that magnets slide down easier than they detach. Designing a hanger? Note that the sliding force is much weaker than the perpendicular breakaway force. On a painted metal, the holder will slip down under a much lighter cargo. Utilizing a rubberized coating can effectively raise the stability.

Table 4: Material efficiency (substrate influence) - power losses
MPL 40x15x5x2[7/3.5] / N38

Steel thickness (mm)	% power	Real pull force (kg)
0.5 mm	5%	0.57 kg / 567.5 g 5.6 N
1 mm	13%	1.42 kg / 1418.8 g 13.9 N
2 mm	25%	2.84 kg / 2837.5 g 27.8 N
5 mm	63%	7.09 kg / 7093.8 g 69.6 N
10 mm	100%	11.35 kg / 11350.0 g 111.3 N

A thin sheet cannot conduct the full magnetic flux, which wastes potential of the magnet. If you attach a powerful product to a weak sheet, the magnetism will penetrate right through and the pull force will drop sharply. To achieve 100% of this magnet's potential, you need a suitably thick backing of metal. The saturation effect means that on sheet metal structures (e.g., car bodies), the holder holds weaker. We advise picking the steel thickness based on the following data.

Table 5: Thermal stability (stability) - thermal limit
MPL 40x15x5x2[7/3.5] / N38

Ambient temp. (°C)	Power loss	Remaining pull	Status
20 °C	0.0%	11.35 kg / 11350.0 g 111.3 N	OK
40 °C	-2.2%	11.10 kg / 11100.3 g 108.9 N	OK
60 °C	-4.4%	10.85 kg / 10850.6 g 106.4 N
80 °C	-6.6%	10.60 kg / 10600.9 g 104.0 N
100 °C	-28.8%	8.08 kg / 8081.2 g 79.3 N

Standard neodymium magnets lose parameters above the temperature limit. Protect against heat – high temperature can irreversibly destroy this product. As the temperature rises, the neodymium's capacity briefly drops. Refrain from using this product close to ovens higher than its safe range. Too high temperature will result in destruction of magnetism.

*Technical advisory: Thermal stability depends not only on the material grade, as well as the dimension ratios. Flat magnets (low Pc) risk losing magnetic properties sooner than long magnets. The danger warning in the table signals a risk of irreversible loss for this specific geometry.

Table 6: Two magnets (attraction) - forces in the system
MPL 40x15x5x2[7/3.5] / N38

Gap (mm)	Attraction (kg) (N-S)	Repulsion (kg) (N-N)
0 mm	22.94 kg / 22943 g 225.1 N 3 961 Gs	N/A
1 mm	21.37 kg / 21370 g 209.6 N 4 807 Gs	19.23 kg / 19233 g 188.7 N ~0 Gs
2 mm	19.67 kg / 19671 g 193.0 N 4 612 Gs	17.70 kg / 17704 g 173.7 N ~0 Gs
3 mm	17.94 kg / 17940 g 176.0 N 4 404 Gs	16.15 kg / 16146 g 158.4 N ~0 Gs
5 mm	14.58 kg / 14582 g 143.1 N 3 971 Gs	13.12 kg / 13124 g 128.7 N ~0 Gs
10 mm	8.01 kg / 8015 g 78.6 N 2 944 Gs	7.21 kg / 7213 g 70.8 N ~0 Gs
20 mm	2.32 kg / 2319 g 22.7 N 1 583 Gs	2.09 kg / 2087 g 20.5 N ~0 Gs
50 mm	0.12 kg / 120 g 1.2 N 359 Gs	0.11 kg / 108 g 1.1 N ~0 Gs

Two strong neodymiums interact from a much further distance than a magnet and steel setup. The setup of two magnets generates a stronger field and a wider radius of operation. Planning to create a strong closure? Use a pair of magnets instead of a neodymium and a striker plate. Exercise caution that when connecting a pair of magnets, the collision energy is huge. The repulsion force is slightly lower than the attraction, but still impressive.
*Flux density between like poles reaches ~0 Gs at the midpoint of the gap (resulting from vector opposition).

Table 7: Safety (HSE) (implants) - warnings
MPL 40x15x5x2[7/3.5] / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	10.5 cm
Hearing aid	10 Gs (1.0 mT)	8.0 cm
Mechanical watch	20 Gs (2.0 mT)	6.5 cm
Mobile device	40 Gs (4.0 mT)	5.0 cm
Car key	50 Gs (5.0 mT)	4.5 cm
Payment card	400 Gs (40.0 mT)	2.0 cm
HDD hard drive	600 Gs (60.0 mT)	1.5 cm

A strong magnetic field poses a large risk to electronic devices as well as pacemakers. These NdFeB products produce a field that destroys function of digital equipment. Be aware: the unseen radiation passes through tissues and housings. Exceptional care must be exercised by people with cochlear implants and drug dispensers. Also at risk are: mechanical watches, remotes, speakers, and displays. Avoid contact with magnetic cards, HDD media, or sensitive navigation tools.

Table 8: Collisions (cracking risk) - warning
MPL 40x15x5x2[7/3.5] / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	24.04 km/h (6.68 m/s)	0.50 J
30 mm	39.29 km/h (10.91 m/s)	1.34 J
50 mm	50.66 km/h (14.07 m/s)	2.23 J
100 mm	71.63 km/h (19.90 m/s)	4.45 J

NdFeB products are prone to chipping – a collision with steel can result in shattering. Control the attraction moment – a neodymium left loose becomes dangerous. Striking energy can cause material chips or injury to skin. Hold the magnet firmly during bringing near metal so it doesn't hit violently against the metal. A contact at a velocity of dozens of km/h almost guarantees destruction of the magnet. Wear safety glasses when handling with large magnets.

Table 9: Surface protection spec
MPL 40x15x5x2[7/3.5] / 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)

The SST (salt spray test) is an industry standard for determining coating lifespan in harsh conditions. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Electrical Data (Flux)
MPL 40x15x5x2[7/3.5] / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	14 969 Mx	149.7 µWb
P_c Coefficient	0.26	Low (Flat)

Flux value passing through the magnet pole. Key data for generator designers as well as sensors. P_c value defines the magnet's operating point.

Table 11: Hydrostatics and buoyancy
MPL 40x15x5x2[7/3.5] / N38

Environment	Effective steel pull	Effect
Air (land)	11.35 kg	Standard
Water (riverbed)	13.00 kg (+1.65 kg Buoyancy gain)	+14.5%

Corrosion warning: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.

Water displaces steel, making heavy objects slightly lighter. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Sliding resistance

*Warning: On a vertical surface, the magnet retains just a fraction of its max power.

2. Efficiency vs thickness

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

3. Heat tolerance

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

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

chart generated for the permeance coefficient P_c (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 P_c (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 P_c 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

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%

Ecology and recycling (GPSR)

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: 020154-2025

Magnet Unit Converter

Force (Pull)

Force in kg

lbs

Magnetic Induction

Gauss (Gs)

Input a figure in just one field to see the conversion in all other fields at once.

UMS 36x10.5x6.5x8 / N38 - conical magnetic holder

22.94 ZŁ brutto / pcs

Product available Ships tomorrow

AM szekla [M10] - magnetic accessories

4.92 ZŁ brutto / pcs

Product available Ships tomorrow

MW 5x15 / N38 - cylindrical magnet

1.107 ZŁ brutto / pcs

Product available Ships tomorrow

MPL 40x10x5 / N38 - lamellar magnet

6.03 ZŁ brutto / pcs

This product is a very powerful plate magnet made of NdFeB material, which, with dimensions of 40x15x5 mm and a weight of 22.5 g, guarantees the highest quality connection. This magnetic block with a force of 111.37 N is ready for shipment in 24h, allowing for rapid realization of your project. 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. Watch your fingers! Magnets with a force of 11.35 kg can pinch very hard and cause hematomas. Using a screwdriver risks destroying the coating and permanently cracking the magnet.

Plate magnets MPL 40x15x5x2[7/3.5] / N38 are the foundation for many industrial devices, such as filters catching filings and linear motors. Thanks to the flat surface and high force (approx. 11.35 kg), they are ideal as closers 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 40x15x5x2[7/3.5] / 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. Avoid chemically aggressive glues or hot glue, which can demagnetize neodymium (above 80°C).

Standardly, the MPL 40x15x5x2[7/3.5] / N38 model is magnetized axially (dimension 5 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.

The presented product is a neodymium magnet with precisely defined parameters: 40 mm (length), 15 mm (width), and 5 mm (thickness). It is a magnetic block with dimensions 40x15x5 mm and a self-weight of 22.5 g, ready to work at temperatures up to 80°C. The product meets the standards for N38 grade magnets.

Advantages as well as disadvantages of neodymium magnets.

Pros

In addition to their magnetic efficiency, neodymium magnets provide the following advantages:

They virtually do not lose strength, because even after ten years the performance loss is only ~1% (based on calculations),
Neodymium magnets prove to be extremely resistant to magnetic field loss caused by magnetic disturbances,
In other words, due to the shiny surface of nickel, the element gains visual value,
The surface of neodymium magnets generates a strong magnetic field – this is one of their assets,
Thanks to resistance to high temperature, they can operate (depending on the form) even at temperatures up to 230°C and higher...
Possibility of accurate modeling and modifying to precise applications,
Significant place in electronics industry – they are commonly used in HDD drives, motor assemblies, advanced medical instruments, and industrial machines.
Compactness – despite small sizes they generate large force, making them ideal for precision applications

Weaknesses

Disadvantages of neodymium magnets:

They are fragile upon heavy impacts. To avoid cracks, it is worth protecting magnets in special housings. Such protection not only protects the magnet but also improves its resistance to damage
We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material immune to moisture, when using outdoors
Due to limitations in realizing threads and complicated shapes in magnets, we recommend using a housing - magnetic mechanism.
Health risk to health – tiny shards of magnets are risky, when accidentally swallowed, which is particularly important in the aspect of protecting the youngest. It is also worth noting that small elements of these devices are able to be problematic in diagnostics medical after entering the body.
Due to complex production process, their price is higher than average,

Pull force analysis

Maximum lifting capacity of the magnet – what affects it?

Holding force of 11.35 kg is a measurement result performed under the following configuration:

with the use of a yoke made of special test steel, guaranteeing maximum field concentration
possessing a massiveness of min. 10 mm to ensure full flux closure
with an ground contact surface
under conditions of ideal adhesion (metal-to-metal)
during detachment in a direction perpendicular to the mounting surface
at ambient temperature approx. 20 degrees Celsius

Practical aspects of lifting capacity – factors

Holding efficiency impacted by specific conditions, mainly (from most important):

Clearance – the presence of foreign body (paint, dirt, air) acts as an insulator, which reduces power rapidly (even by 50% at 0.5 mm).
Force direction – remember that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops drastically, often to levels of 20-30% of the nominal value.
Element thickness – to utilize 100% power, the steel must be adequately massive. Thin sheet restricts the lifting capacity (the magnet "punches through" it).
Material composition – different alloys reacts the same. High carbon content worsen the attraction effect.
Surface quality – the more even the plate, the better the adhesion and higher the lifting capacity. Unevenness acts like micro-gaps.
Operating temperature – neodymium magnets have a sensitivity to temperature. At higher temperatures they are weaker, and in frost gain strength (up to a certain limit).

Lifting capacity was measured by applying a steel plate with a smooth surface of suitable thickness (min. 20 mm), under vertically applied force, whereas under shearing force the lifting capacity is smaller. In addition, even a small distance between the magnet and the plate reduces the load capacity.

Warnings

Respect the power

Handle with care. Rare earth magnets act from a long distance and connect with huge force, often quicker than you can move away.

Electronic hazard

Do not bring magnets near a purse, computer, or TV. The magnetism can permanently damage these devices and erase data from cards.

Sensitization to coating

Certain individuals have a sensitization to nickel, which is the common plating for neodymium magnets. Extended handling can result in an allergic reaction. We strongly advise wear protective gloves.

Threat to navigation

GPS units and mobile phones are extremely sensitive to magnetism. Close proximity with a powerful NdFeB magnet can ruin the internal compass in your phone.

Keep away from children

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

Serious injuries

Big blocks can crush fingers instantly. Under no circumstances place your hand between two strong magnets.

Machining danger

Drilling and cutting of neodymium magnets carries a risk of fire hazard. Magnetic powder reacts violently with oxygen and is hard to extinguish.

Magnets are brittle

Neodymium magnets are ceramic materials, which means they are prone to chipping. Collision of two magnets will cause them breaking into small pieces.

Medical interference

Warning for patients: Strong magnetic fields affect electronics. Keep minimum 30 cm distance or request help to work with the magnets.

Power loss in heat

Do not overheat. Neodymium magnets are susceptible to heat. If you need resistance above 80°C, ask us about HT versions (H, SH, UH).

Caution! Looking for details? Read our article: Why are neodymium magnets dangerous?

MPL 40x15x5x2[7/3.5] / N38 - lamellar magnet

Want to talk magnets?

MPL 40x15x5x2[7/3.5] / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical analysis of the magnet - technical parameters

1. Sliding resistance

2. Efficiency vs thickness

3. Heat tolerance

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

Elemental analysis

Ecology and recycling (GPSR)

Force (Pull)

Magnetic Induction

See also products

UMS 36x10.5x6.5x8 / N38 - conical magnetic holder

AM szekla [M10] - magnetic accessories

MW 5x15 / N38 - cylindrical magnet

MPL 40x10x5 / N38 - lamellar magnet

Advantages as well as disadvantages of neodymium magnets.

Pros

Weaknesses

Pull force analysis

Maximum lifting capacity of the magnet – what affects it?

Practical aspects of lifting capacity – factors

Respect the power

Electronic hazard

Sensitization to coating

Threat to navigation

Keep away from children

Serious injuries

Machining danger

Magnets are brittle

Medical interference

Power loss in heat

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C