Neodymium iron boron magnets, also known as neodymium magnets, are the most commonly used rare earth magnets in the world. This is mainly because they are the strongest permanent magnets on the market, and they are ten times stronger than the next strongest permanent magnet. Neodymium magnets are composed of neodymium, iron and boron. They are divided into two categories according to the manufacturing method, NdFeB magnets are divided into sintered magnets and bonded magnets. Neodymium magnets have many beneficial functions, and as such, they are commonly used in jewelry, magnetic resonance imaging, and levitation devices.

Why do mobile phones need NdFeB magnets? (related articles：ndfeb magnets in 3c consumer electronics products)

Although we can't see them while holding a mobile phone, NdFeB magnets are an important part of mobile phones. These magnets are usually small in size in mobile phones. However, their size has nothing to do with their efficiency. They're powerful enough to do most of the work your phone needs to run smoothly.

Mobile phone speaker

What's a phone without a speaker? Answering calls on a cell phone is impossible without a speaker. As mobile phones become thinner and technology advances, the quality requirements for mobile phone magnets are getting higher and higher. This is because high-quality magnets in mobile phones can improve the sound quality of mobile phones. Today, manufacturers use two to five a permanent magnet.

NdFeB magnets are perfect for making mobile phone speakers because they can withstand temperatures up to 230°C, which is important because the entire process of producing mobile phone speakers is carried out at very high temperatures. Interestingly, the manufacturer chose N48 and N52 magnets because they are the strongest grades of neodymium magnets on the market.

Cell phone receiver

Handsets are basically your phone's microphone, they take sound and amplify it before sending it to the speakers of whoever you're talking to, they can also be used to record messages. You will definitely be interested in the huge role that permanent magnets play in the handset functionality of your mobile phone. Cell phone receivers are usually made with two magnets for greater efficiency. NdFeB magnets are the magnets of choice for manufacturers interested in high quality mobile phone receivers.

Phone camera

We can take sharply focused photos with our phones, which would not be possible without an autofocus motor (also known as a voice coil motor). About 2-4 permanent magnets are needed to make each autofocus motor used in mobile phone cameras, and neodymium iron boron magnets are known for their great strength. It's this sheer power that makes them perfect for phone cameras. Neodymium magnets allow us to get sharp and well-focused photos from our phones at such a low cost.

Vibration motor

Every time you feel your phone vibrate, you should thank the neodymium magnets for making it possible, and you should feel the same gratitude when you press a key on your phone and feel a little buzz. The vibration motor that makes these vibrations possible uses neodymium iron boron magnets. Unlike cell phone speakers and receivers, vibration motors require only one magnet.

Headphones and Headsets

Although earphones and headsets are external components of the phone, they add value to the overall mobile phone user experience. Neodymium iron boron magnets are the reason we have high quality headphones today. Use 2-4 magnets per earphone or headset. We can have small headphones that produce top quality sound because even the tiny sized neodymium magnets are strong enough to be effective.

Phone Holders & Cases

Some wallet cases use magnets to snap the case shut, and these magnets don't need to be very strong, which means that only a tiny fraction of neodymium magnets are needed for this purpose. In addition, the phone can be mounted on various surfaces simply by placing the NdFeB magnet on the back of the phone or as an integral part of the phone case.

In conclusion

NdFeB magnets have made a great contribution to the development of mobile phones, they are an important part of mobile phones in today's world, because they are important components used to manufacture mobile devices.