N54SH Neodymium Voice Coil Magnet in Speaker of iPhone Technical Specifications:
Item: MP-NDN54SH-02
Grade: N54SH
Material: Neodymium (NdFeB)
Plating: Nickel
Shape: Block, Rectangular, Rectangle, Square
Dimension: Customer Design Drawing
Tolerance: ±0.05 mm
Magnetisation Direction: Axial / Radial
Residual Magnetic Flux Density (Br): 1280-1320 mT (12.8-13.2 kGs)
Energy Density (BH)max: 318-342 KJ/m³ (40-43 MGOe)
Coercivity Force (Hcb): ≥ 915 kA/m ( ≥ 11.5 kOe)
Intrinsic Coercivity Force (Hcj): ≥ 955 kA/m ( ≥ 12 kOe)
Maximum Operation Temperature: 80 °C
Delivery Time: 14-35 days
3C consumer electronics mainly include six categories: mobile phones, tablets, laptops, watches, headphones, and wireless charging devices. Take Apple products as an example, iPhone, iPad, Mac, Watch, AirPods, MagsaFepParts.
There are three main modules in consumer electronics that use magnets, which are acoustic modules, motor modules and magnetic modules.
Neodymium Magnet in 3C Consumer Electronics Products
Acoustics modules, as the name suggests, are vocal units, and popular names are speakers. The performance of the speakers has a great impact on sound quality.
The magnetic field will be generated in the power -on wire. When the AC audio current is through the coil (ie, the audio coil) of the speaker, the corresponding magnetic field is generated in the audio. The force makes the sound rim vibrate in the permanent magnetic field of the speaker’s own, as the audio current is vibrated. The vibration film and sound of the speaker are connected. When the sound coil is vibrated with the horn film, the surrounding air vibrates, and the speaker will sound. As shown below, this is the principle of the speaker.
The requirements of the acoustic modules of different 3C products are different in the face of tin neodymium iron boron magnet
iPhone and other mobile phone products have high frequency and have certain requirements for mobile phones. Therefore On Mac or iPad, on the one hand, the sound quality needs to be considered. On the other hand, its volume is larger than the mobile phone, and there is more space available. Therefore Metropolitania Watch products such as Watch are small in size and users generally need their needs for sound and low requirements for sound quality. Therefore, magnetic steel with low performance (50h) is also small.
MPCO Rare Earth Magnet Limited manufactures neodymium magnets in different grades with perfect uniformity and consistency, the full name is neodymium iron boron magnets such as N35-N52, 30M-50M, 30H-48H, 30SH-45SH, 28UH-40UH, 28EH-38EH, can also adjust raw material formula for special application.
Neodymium iron boron magnets are composed of metal neodymium, iron, boron and other trace metal elements. We have sintered & bonded neodymium rare earth magnets for sale, wholesale. We always customize neodymium magnets according to customers’ requirement, drawings or actual samples, shapes include block, disc, cylinder, ring, arc, sphere etc. can manufacture mini magnets such as 0.5mm or large magnets such as 220mm. PTFE ELLIPTICAL RARE EARTH MAGNETS
Customers always choose suitable surface finish according to different working environments applications. We manufacture sintered neodymium magnets with nickel coating, NiCuNi, or zinc (Zn), tin, chrome, black epoxy, gold, silver etc. or supply phosphating, passivated magnets.
Magnetization Direction – We always manufacture neodymium magnets with customized magnetization direction according to our clients’ requirements.
Block: Through Thickness / Width / Length / Multi-poles
Ring: Through Diameter / Thickness / Multi-poles
Disc: Through Diameter / Thickness / Multi-poles
Arc: Through Diameter / Thickness / Width
Our products are widely used in industry, agriculture, medical, electronics, automobile, speaker, motors, generators, MRI, magnetic levitation, magnetic separators, toys etc.If you have any enquiry about neodymium iron boron magnets, please give us enough information for quoting. Teflon Oval Egg Shaped Rare Earth PTFE Magnets
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