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Description
EPCOS B66418W1008D001 Transformer Bobbin, 8 Pin, EFD20The B66418W1008D001 is a 8 pin GFR Thermosetting Plastic EFD 20 10 7 Coil Former for use with B66417 series. Ferrite cores have to meet mechanical requirements during assembling and for a growing number of applications. Since ferrites are ceramic materials one has to be aware of the special behaviour under mechanical load. As valid for any ceramic material, ferrite cores are brittle and sensitive to any shock, fast changing or tensile load. Especially
The B66418W1008D001 is a 8-pin GFR Thermosetting Plastic EFD 20/10/7 Coil Former for use with B66417 series. Ferrite cores have to meet mechanical requirements during assembling and for a growing number of applications. Since ferrites are ceramic materials one has to be aware of the special behaviour under mechanical load. As valid for any ceramic material, ferrite cores are brittle and sensitive to any shock, fast changing or tensile load. Especially high cooling rates under ultrasonic cleaning and high static or cyclic loads can cause cracks or failure of the ferrite cores. Stresses in the core affect not only the mechanical but also the magnetic properties. It is apparent that the initial permeability is dependent on the stress state of the core. The higher the stresses are in the core, the lower is the value for the initial permeability. Thus the embedding medium should have the greatest possible elasticity.
- Ferrites can run hot during operation at higher flux densities and higher frequencies
- The magnetic properties of NiZn-materials can change irreversible in high magnetic fields
- UL94V-0 Flammability rating
Applications
Industrial
Product details
| Product Range | EFD20 Series |
| For Use With | EFD20 |
Other details
| Brand | EPCOS |
| Part Number | B66418W1008D001 |
| Quantity | Each |
| Technical Data Sheet EN | |
| Product Change Notice EN |
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them. Image is for illustrative purposes only. Please refer to product description.
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4.4 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 5
KONG Tug Toy
This tug toy is decent but not amazing. It’s sturdy enough for light play, but it doesn’t hold up as well as other KONG toys we’ve used. My dog enjoyed it, but the material started to wear faster than expected, and it didn’t feel as durable as the usual KONG quality. It’s fine for occasional tug sessions, but not the best choice for strong pullers or heavy chewers.
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Best toy for a puppy who loves tug-o-war
My puppy (lab/shepherd) went nuts for this toy. She loves to play tug-o-war. This is so durable and the grip handles on the end totally help you out. She loves to bit in the middle and will whip it at you to get you to engage with her. The size is perfect for her and the KONG material must feel good for her.
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Reviewed in the United States on May 19, 2026
★★★★★ 5
GREAT DOG TOY INDESTRUCTIBLE!
Best dog toy yet! My large breed year old pup is very hard on toys and this one stands up to the wild playing and chewing! Excellent purchase I’ll definitely buy it again to have extras around and I’d definitely give it as a gift! Happy dog happy life!
GREAT PRODUCT
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Reviewed in the United States on January 23, 2026
★★★★★ 1
Kong didn't survive this guy.
He had it for an hour.. We played tug for around 10 minutes then he took it off and chewed it up.. I thought Kongs were tougher to chew up.. very dissapointed.
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Reviewed in the United States on May 25, 2026
★★★★★ 5
One of the best dog toys we've found
This is one of my little girl's favorite toys. She's an aggressive chewer so at first we followed the manufacturers instructions not to let her use as a chew toy. It was purchased in January 2025, but it's holding up just fine. She likes to turn it into a pretzel for some reason, but hey it keeps her entertained! Highly recommend.
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Reviewed in the United States on May 3, 2026