2.5x2.5mm Rod Magnets

SKU: 44200-2.5

$0.18USD or lower Each

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Building a custom mechanical keyboard for gaming? This 2.5x2.5mm neodymium disc magnet may be the right trigger for Hall Effect sensors. These magnets are rated at 5900, 5422 & 2093 gauss at 0.0, 0.1 & 1.0mm gap distances respectively. They can deliver sufficient magnetic flux to activate Hall Effect switches & allow for adjustable actuation points for joystick controllers.

If you are prototyping you can buy just a few of each of our 2.5mm diameter magnets or 2.5mm thick magnets. If a speed switch is what you are looking for, our 2.5x1mm, 3x1mm or 4x1.5mm disc magnets may do the trick. Check their respective pages for gauss ratings.

Details In Kits Specs Reviews Related Products

Details

See what these customers had to say on Google Reviews (click on name for full review):

Tracy Myerson: ...purchased N42 Neodymium magnets, they are the real deal...had previously bought magnets on Amazon that were advertised as N52, they were just another cheap Chinese fake....

Ron Bennett: Fantastic support and product. Beats Amazon price with real customer service...product was of the highest quality and exactly as described.

Peter Maran: Their Neodymium magnets are superb in quality and price; ...tools, magnifiers, tweezers, and so on, all quality made...

In Kits

P/N	Description	QTY
44200-PB	2.5mm Nd magnet protoype bundle	10

Specifications

Field Strength (Gauss) & Pull Force in Pounds & Kilograms at 5 Distances Above Magnet

SKU: 44200-2.5 Size: 2.5 × 2.5mm
Distance (mm):	0	0.1	1	10	100
Gauss	5903.2	5421.9	2092.5	18.2	0.0
Lb	0.40	0.34	0.05	0.00	0.00
Kg	0.18	0.15	0.02	0.00	0.00

Magnet Documentation

Drawing	Compliance	MSDS	ROHS	Graph

Specifications for Fully Sintered/Pressed Neodymium Magnets, N42 Grade

RemanentFlux Density (B_r)	13,000G; 1300mT
Coercivity (bHc)	12.0 Oe; 955 A/m
Intrinsic Coercivity (jHc)	17.0 Oe; 1353 A/m
Max.Energy Product (BH_Max)	42 MGO; 334 kJ/m³
Curie Temperature (T_c)	310^oC
Working Temperature (T_w)	80^oC
Temp.Coefficient (αB)_r	-0.12%/C^o

Tolerances - Sintered Rare Earth Magnets

	Dimensions		Tolerances
Size: Unfinished Surfaces: Dimensions perpendicular to pressing (die formed)	Inches	mm	Inches	mm
	0 to 0.125	0 to 3	+/- 0.006	+/- 0.15
	0.126 to 0.625	3 to 16	+/- 0.012	+/- 0.30
	0.626 to 0.875	16 to 22	+/- 0.018	+/- 0.45
	0.876 and Up	22 and Up	+/- 2.5%	+/- 2.5%

American (Imperial)/Metric Conversion Table

Inch	Decimal	mm	Rounded
1/32"	0.031	0.8	1
3/32"	0.094	2.4	2.5
5/32"	0.156	4.0	4
1/16"	0.063	1.6	1.5
3/16"	0.188	4.8	5
2/10"	0.200	5.1	5
1/8"	0.125	3.2	3.75
1/4"	0.250	6.4	7.5
5/16"	0.313	7.9	7.5
3/8"	0.375	9.5	10
13/32"	0.406	10.3	10
1/2"	0.500	12.7	12.5
9/16"	0.563	14.3	15
5/8"	0.625	15.9	15
11/16"	0.688	17.5	17.5
3/4"	0.750	19.1	20
13/16"	0.813	20.6	20
7/8"	0.875	22.2	22.5
15/16"	0.938	23.8	25

Reviews (1)

2017-08-17

Ordered these a few weeks ago. Magnets came in well packed via Canada Post. Good quality, does as advertise, highly recommended. Will most definitely be sticking with Indigo for all my fabrication projects that require magnets.

— Ken

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