Ignition Coils

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Even though they are used in larger, multi-part ignition systems, ignition coils can be considered the most essential component of the system. It would be ineffectual without both the high voltage and ignition energy provided by these specific electric coils. The most common application of ignition coils is in the automotive industry, in which they are used for vehicle ignition systems such as in cars, minivans, trucks, SUVs, motorcycles and more. Read Moreā€¦

Ignition Coils Also referred to as a spark coil, an ignition coil is a type of electrical induction coil that is used to transform lower voltages of power to the higher voltages of power required to fire a system's spark plugs.

Leading Manufacturers

Sag Harbor, NY  |  800-724-5952

We are proud of the craftsmanship of our engineers. All of our products are made right here in the United States and we promise that these items are created from high quality resources. Our electrical coils are unique and efficient.

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Sag Harbor Industries, Inc. $$$

Bristol, CT  |  800-825-4319

At Classic Coil, we put an emphasis on manufacturing high quality electric coils. Our coils are engineered for a variety of industries, and we utilize state-of-the-art equipment to create these products with precision. Our teams can manufacture solutions with various materials including copper, gold, silver, and platinum. Call us today or visit our website to learn more!

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Classic Coil Company $$$

Bristol, CT  |  860-584-0927

We are an ISO 9001:2015 certified company which is internationally known for manufacturing high quality electromagnetic-coils. It is our goal to provide quality products, a commitment to speedy delivery, and competitive pricing. We understand that every application is unique, so we encourage you to contact us to discuss your specific requirements. Call us at 1-860-584-0927 and find out what our 50+ years of experience can do for you.

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Quality Coils, Inc. $$$

North Manchester, IN  |  260-982-8508

At Custom Magnetics, we manufacture transformers and coils, custom designed, for electrical and electronics industries. Our products often serve applications such as audio amplifiers, intercoms, power supplies, transducers, transportation, power generation, etc. Many types of transformers are produced including laminated, toroidal, ferrite cores of all shapes and sizes, and R-Core. Call today!

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Custom Magnetics, Inc. $$$

Antigo, WI  |  800-826-9741

Johnson Electric Coil Company is a family owned manufacturer that specializes in custom transformers, coils and inductors. From three phase isolation transformers to single phase inductors and chokes, we carefully design our products to meet your exact specifications.

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Johnson Electric Coil Company $$$
placeholder image Sag Harbor Industries, Inc. Classic Coil Company Quality Coils, Inc. Custom Magnetics, Inc. Johnson Electric Coil Company

Very similar to an electric transformer, ignition coils have both primary and secondary winding circuits.

Another common automotive coil is the choke coil, which is usually a part of an engine. However, ignition coils are also utilized in additional industries such as: industrial manufacturing, for material handling equipment such as forklift trucks and mobile overhead cranes; agriculture, for farming equipment such as tractors, combines and balers; and recreation, for off-road vehicles such as quads, dirt bikes, three-wheelers and golf carts.

Ignition coils must not only be manufactured from conductive materials such as copper or silver, but must also be formed from materials offering high-temperature resistance.

The ignition coil functions to fire up the spark plugs by means transforming the current flow from the vehicle's battery (typically a twelve volt or a six volt) into the many thousand of volts (between twenty and thirty thousand volts) required by the spark plugs. An ignition coil is similar to other types of electric coils in that it consists of a core and two wound wires, a primary and a secondary.

The primary coil is commonly manufactured from a very heavy gage of copper that is insulated in protective materials that disable the current flow from jumping from one loop to another and consequently shorting out the system. The primary coil generally contains about one hundred to one hundred and fifty turns, or coils of wire.

The secondary coil, on the other hand, is typically manufactured from a very fine gage of copper, which must also be insulated to protect against shorting the system. The secondary coil contains many more turns than the primary coil, generally ranging from fifteen thousand to thirty thousand. The secondary coil is fitted inside the turns of the primary coil and both coils are wrapped around the core.

Typically cylindrically-shaped, the core of an ignition coil is manufactured from soft iron that is filled with oil that serves as a coolant enabling the core to withstand the extreme temperatures reached by the current flow.

Ignition Coils Informational Video