Pre-Made Optimus Prime KA1 (28 x 32 AWG + 22 AWG + 0.1 x 0.9mm) 0.3 Ω – 10 Pack


The Optimus Prime KA1 pack includes 10 pre-made 0.3-ohm coils crafted from durable KA1 wire. Each coil combines a 28 AWG core, 32 AWG wrapping, a 22 AWG wire, and a 0.1mm x 0.9mm ribbon wire for consistent heating. These easy-to-use coils ensure precision and efficiency in various electronic applications, making them a reliable choice for hobbyists and professionals alike.

✔ Huge Range Available

✔ Produced In Warrington, UK

✔ Shipped Within 24 Hours

✔ 30 Day Returns Accepted

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Pre-Made Optimus Prime KA1

The Optimus Prime KA1 is a pack of 10 pre-made coils, each with a resistance of 0.3 ohms, designed for reliable performance in electronic circuits. In addition to the core, these coils are designed using high-resistance KA1 wire. They include a 28 AWG wire wrapped by 32 AWG, and a ribbon wire measuring 0.1mm x 0.9mm. The combination provides even heat distribution in a short amount of time. As well as ensuring precision, these pre-made coils are resistant to oxidation at high temperatures. The Optimus Prime KA1 coils are perfect for many electronic applications and are convenient for both hobbyists and professionals.

About The Product

The details of this product are as follows:

  • Metal – FeCrAl A1 ( KA1)
  • Pack Size – 10 Coils
  • Resistance – 0.3 Ω
  • Coil Build – Optimus Prime (28 x 32 AWG + 22 AWG + 0.1 x 0.9mm)

Why Use The Crazy Wire Company

  1. Quality of products: The Crazy Wire Company always  offer high-quality products that meet industry standards and customer expectations.
  2. Selection: We offer a wide variety of wire products and sizes to meet the diverse needs of our customers. We have more than 600 products available through our site and counting. 
  3. Price: We always offer the best value possible. Our wires are available as part of our major weaving processes, so it is bought at the best possible rate. 
  4. Availability: Our products are kept in house and are ready to ship immediately. 
  5. Customer service: Our experienced staff help our customers feel confident in their purchases and provide assistance when required. 

What Else Is Available?

We do not only offer KA1 round wire. We also have a huge range of Nichrome and stainless steel round wire in immediate stock too.

Ribbon wire and flat wire are stocked for immediate dispatch too.


FAQs About This Product

Can Optimus Prime KA1 Coils Be Cleaned And Reused?

It greatly depends on the application and the environment under which the Optimus Prime KA1 coils were used to determine whether they can be cleaned and reused. It is normal for coils to accumulate residue over time, which can negatively impact their performance. There are some users who choose to clean the coils gently to remove surface residues, potentially extending their lifespan. If the coils must be cleaned and repurposed, consult the manufacturer’s guidelines or product documentation carefully to ensure that the practices align with recommended practices and do not compromise their functionality or safety.

Are Optimus Prime KA1 Coils Suitable For Beginners?

Yes, Optimus Prime KA1 coils are suitable for beginners due to their pre-made and ready-to-use nature. The coils are designed to offer consistency and reliability, which can be beneficial for those who are new to working with electronic circuits and may not have the experience or confidence to wind their own coils. The ease of use and installation make these coils a convenient option, allowing beginners to focus on learning and experimenting without the additional complexity of crafting coils from scratch.


Check out our blog expanding on the difference between Clapton and Flapton coil wires. This is an extremely detailed article, which we hope will provide much insight into the subject. 

We also offer similar products through our highly popular eBay store, check us out there too.

Contact our team today if you have any questions at all. We are always really keen to help in any way that we can.


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