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Eyelet Connector: The Basics

You must always consider safety and reliability when dealing with electricity. The eyelet connector is a small, often overlooked electrical component that meets these requirements. 

This article will examine the basics of eyelet connectors, their different types, how to use them, and much more.

What Are Eyelet Connectors?

Eyelet connectors are essential for the correct flow of electricity in a circuit. Electricians use eyelet connectors to connect cables between circuit boards, terminals, or other areas. You’d see them in steel, brass, or copper, all conducive and durable materials, ensuring they last for a long time. 

Let’s talk about the eyelet’s structure, so you better understand how to use them correctly. These connectors have a metal eyelet and a small hollow tube with a flat head. This is where you put the wire, and you can crimp or solder the joint so the wire is secured to the connector. 

Looking at other connectors, eyelet connectors are permanent or semi-permanent, which means that you cannot easily change them once it is connected. They provide a secure connection compared to screw terminals and other connectors. 

While it serves as a pretty permanent solution, it is not bulky and can be used in smaller spaces, like in your car’s engine. They are adaptable to work with different wires and fairly simple to use. 

eyelet connectors

(eyelet connectors)

Types of Eyelet Connectors

There are 4 main types of eyelet connectors. 

Heavy-Duty Eyelet Connectors

Heavy-duty eyelet connectors do exactly what their name says. They are good to use in very high-stress applications and areas with lots of electricity.

They contain very thick materials and often have reinforced designs to ensure reliability and durability. You would see these connectors in industrial machinery and other high-power areas. 

Standard Eyelet Connectors

These are the basic connectors made of copper or stainless steel. They are simple but reliable, connecting the wires to the respective components. You can use a standard eyelet connector in different electronics where you don’t need a heavy-duty one.  

Insulated Eyelet Connectors

These connectors have a layer of insulation around the metal eyelet. This prevents electrical contact between the conductive surfaces and the connector, which reduces the risk of short-circuiting or hazards. 

People use these connectors where electricity safety and insulation are important, such as in wiring harnesses or where live components are present. 

Non-Insulated Eyelet Connectors

Non-insulated eyelet connectors do not have insulation around the metal eyelet. They are used where insulation is unnecessary or there needs to be more space to use insulated connectors. You would see them in control cabinets and electrical panels, where live electrical components are not an issue. 



Pros and Cons of Eyelet Connectors

Eyelet connectors are in the toolboxes of all electricians and the average DIYers like you and me! This is because they have many benefits and fit exactly what electrical needs you may have. 

For example, eyelet connectors can handle very high pressure, so they will not break or become loose under heavy vibrations. 

Eyelet connectors ensure an even flow of current, which is important in any electrical system because it reduces the risk of fires and overheating. They offer a permanent solution so you can install and forget about them!

However, eyelet connectors can sometimes be a disadvantage. Since they are permanent, it is not easy to replace them when there is a problem, and it will take a lot of time and work.

If you do not properly handle the connectors during installation, you may damage their parts, which would make them ineffective. They are also at risk of corrosion where there is a lot of moisture. 

Despite these cons, people still prefer to use eyelet connectors over other connectors. 

crimp eyelets

(crimp eyelets)

Tips for the Trade Using Eyelet Connectors

Here are some expert tips to remember when you want to use eyelet connectors. 

Prepare the Wire

The wire has to be in a certain way before securing the connector, so the electrical connection is reliable. Using a wire stripper, strip the wire to expose the conductor. This is where you put the wire into. 

Strip the wire to the length of the eyelet connector. 

Attach the Eyelet Connector

You can attach the eyelet connector using a soldering iron or a crimping tool. 

Leave the soldering iron to heat up for about 5 minutes. Place the connector on the stripped end of the wire and solder to the joint. The solder must flow evenly around the joint, showing that it is secure. 

If you choose to use a crimping tool, ensure that the crimping tool will work for the size of the connector. This is important because there are many cables, so the wrong crimp size will not attach the connector properly. 

a professional at work

(a professional at work)

Test the Connection

Testing the connection is an important step in any electrical wiring. You can use a continuity or multimeter tester to ensure the connection is excellent and free of breaks or faulty components. 

If you’re still unsure how to use eyelet connectors or the results aren’t what you want, don’t hesitate to seek help from a professional or us. 


That is everything you need to know about eyelet connectors. Contact us if you need any help with your electrical needs!

I am Lillian Yang, having been a sales manager for over 10 years.

I have received many positive reviews from customers. They have praised our excellent service, on-time delivery, and high-quality cable assemblies.

For your projects, please provide cable assembly files/images/smples, etc., so that I can send you a quotation within 24 hours.

Contact me now and let’s get started on building your wire harnesses!

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