Product Description
Neodymium Magnet 1/8 in x 1/16 in Rare Earth Disc N42
Micro Neodymium Magnet 1/8 x 1/16 – Precision N42 Disc for Electronics and Sensor Applications
Engineered for compact assemblies and tight tolerances, this N42 rare earth micro disc magnet offers exceptional performance in a micro form factor. With a diameter of just 1/8 inch and a thickness of 1/16 inch, it can be used in electronics, sensors, and other precision applications requiring high magnetic strength in a small footprint.
Key Features:
- Micro Size, Big Performance: Compact 1/8" diameter x 1/16" thick, perfect for embedded systems and miniaturized components.
- Strong N42 Grade: Delivers a BrMax of 13,200 gauss, higher than N40, N38, or N35 grades.
- Pull Force: Approximate holding force of 0.8 lbs, impressive for a magnet of this size.
- Triple Coated: Nickel-Copper-Nickel plating for long-lasting corrosion resistance and surface durability.
- Magnetized Through Thickness: Offers directional magnetic pull across the flat faces.
Ideal for Electronics, Sensors, and Compact Applications
This precision neodymium magnet for electronics is engineered for use in tight-fitting enclosures, miniature sensors, actuators, and medical or wearable technology. Its size and strength also make it popular in magnetic jewelry clasps, miniature closures, and micromechanical projects.
Whether you're integrating it into a microelectromechanical system (MEMS) or embedding it in a custom plastic housing, this N42 rare earth micro disc magnet delivers reliable and repeatable performance at scale.
Common Applications:
- Sensor modules and control systems
- Hearing aids, wearable devices, and medical instruments
- Magnetic connectors for compact electronics
- Miniature closures for packaging and jewelry
- Educational kits and scientific instruments
Installation & Handling Tips:
- Use cyanoacrylate (super glue) or two-part epoxies for secure bonding to plastic, metal, or wood.
- Embedding into custom molds or plastic housings is highly effective for flush installations.
- Due to their small size, store magnets separately in labeled containers to prevent damage or accidental loss.
- Keep away from children and pets. These tiny neodymium magnets for sensor applications present a serious swallowing hazard.
Technical Specifications
Property |
Specification |
Material |
Neodymium (NdFeB) |
Grade |
N42 |
Dimensions |
0.125 inch (Diameter) x 0.0625 inch (Thickness) |
BrMax |
13,200 Gauss |
Pull Force |
Approx. 0.8 lbs |
Coating |
Nickel-Copper-Nickel (Triple Layer) |
Magnetization |
Through Thickness |
Weight |
0.001 lbs |
Frequently Asked Questions (FAQ)
What is the best way to attach this micro neodymium magnet to a surface?
For most applications, cyanoacrylate (super glue) or two-part epoxy adhesives provide a reliable bond. Make sure surfaces are clean and dry before installation. For electronics or molded assemblies, embedding in plastic housings offers long-term stability.
Can I use this N42 rare earth micro disc magnet in electronic circuits or sensor devices?
Yes. This magnet is widely used in Hall effect sensors, reed switches, and miniature actuators. Its small size and strong pull make it ideal for precise electronic applications with limited space.
Is this magnet safe for medical or wearable devices?
It is commonly used in medical and wearable device design. However, proper shielding and safety testing are required to ensure it doesn’t interfere with sensitive components or patient safety, particularly in MRI environments.
How should I store these tiny neodymium magnets for sensor applications?
Store them in non-metallic, clearly labeled containers. Because of their small size and high strength, they can easily attract one another and chip or break if allowed to snap together.
Enhance Compact Designs With High-Performance Micro Magnets
Built for designers, engineers, and innovators, this micro neodymium magnet 1/8 x 1/16 delivers precision strength in applications where size and reliability are non-negotiable. Use this tiny neodymium magnet for sensor applications and electronics to enhance product functionality without sacrificing valuable space.