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 More…
Leading Manufacturers
Sag Harbor Industries, Inc.
Sag Harbor, NY | 800-724-5952We 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.
Classic Coil Company
Bristol, CT | 800-825-4319Established in 1973, Classic Coil Company is a Contract Manufacturer of electronic coils. We manufacture coils for a variety of industries; winding wire gauges from 4-58 AWG. We are ISO 9001-2015 certified, ITAR registered and DFARS Compliant. Our Engineering services allow us to assist with design, reduce cost, and increase efficiency in production. Call or visit our website to learn more about our capabilities.
Quality Coils, Inc.
Bristol, CT | 860-584-0927We 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.
Torelco LLC
Alpha, NJ | 800-867-3526Since 1962, Torelco has been a supplier of electric coils and transformers of superior quality. We offer custom coils, solenoid coils, ferrite core coils & toroid wound coils to serve a range of industries. Markets served include medical, military, electronics, and industrial. When you work with us, our promise is to build to the exact specifications and meet the custom needs of our customers.
Precision Econowind, Inc.
North Fort Myers, FL | 239-997-3860Check out what’s new online at Precision Econowind, manufacturer of the highest quality custom coils at reasonable prices, with on time delivery. Serving the coil industry for over 30 years, we’re experienced with producing loudspeaker & medical industry coils, coils wound on customers’ bobbins/tooling; freestanding, flat wire, edge wound, square, rectangle & shaped coils. Submit your specs today!
Triad Magnetics
Perris, CA | 951-277-0757Triad Magnetics has been in the electric coils industry for over 75 years. Giving us the knowledge and expertise to be one of the best in the industry. We have a wide range of electric coils and inductors as well as the ability to custom engineer and manufacture electric coils to our customer’s needs. Having served the needs of many industries for more than half a century, Triad believes its experience makes the difference.
Johnson Electric Coil Company
Antigo, WI | 800-826-9741Johnson 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.
Very similar to an electric transformer, ignition coils have both primary and secondary winding circuits.
Encapsulated Ignition Coil - Sag Harbor Industries, Inc.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.
