# What is diferent between 2 fuses **URL:** \ **Category:** Circuit Protection\ **Tags:** fuses, part-identification\ **Created:** [June 26, 2025, 10:20am UTC](https://forum.digikey.com/t/what-is-diferent-between-2-fuses/56815 "2025-06-26T10:20:34Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![MrK](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/mrk/32/68663_2.png) [@MrK](https://forum.digikey.com/u/MrK)\ **Post date:** [June 26, 2025, 10:20am UTC](https://forum.digikey.com/t/what-is-diferent-between-2-fuses/56815/1 "2025-06-26T10:20:35Z")
Please let me know the difference between the two fuses, specifically whether they are T8AH250V. Why in one of them is green stripe. ![Capture](https://global.discourse-cdn.com/digikey/original/3X/5/c/5c47f3d59086a90c92935785c0e5e4c76589bf6e.jpeg) ![1-2-1](https://global.discourse-cdn.com/digikey/original/3X/7/2/72e5b8c58e55033d8247d473f82b04d9678d2fc9.jpeg) ---
**Author:** ![PaulHutch](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/paulhutch/32/3357_2.png) [@PaulHutch](https://forum.digikey.com/u/PaulHutch)\ **Post date:** [June 26, 2025, 12:37pm UTC](https://forum.digikey.com/t/what-is-diferent-between-2-fuses/56815/2 "2025-06-26T12:37:04Z")
Welcome to the forum. The physical appearance, excluding size, is rarely important with interchangeable electronic components. Usually they are merely artifacts of different manufacturing runs, design improvements or multiple manufacturers making interchangeable parts.. The photos do not show the text stamped into the metal ends of the parts and there is no way to judge the size of the parts in your photos. If the text is the same on both parts and they are very similar in size, then they are most likely equivalent. Since this is most commonly a fire safety device, I suggest you post the text from the fuses and/or pictures showing the text clearly and also showing the sizes (a ruler in the shot), so that others can confirm they are equivalent. ---
**Author:** ![MrK](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/mrk/32/68663_2.png) [@MrK](https://forum.digikey.com/u/MrK)\ **Post date:** [June 27, 2025, 9:54am UTC](https://forum.digikey.com/t/what-is-diferent-between-2-fuses/56815/3 "2025-06-27T09:54:38Z")
Thank you for your prompt response. I’d like to confirm that both fuses are the same size (5x20mm), and that “T8AH250V” is stamped on the metal ends of each. The only difference between them is that one has a blue line in the middle. Kind Regard ---
**Author:** ![PaulHutch](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/paulhutch/32/3357_2.png) [@PaulHutch](https://forum.digikey.com/u/PaulHutch)\ **Post date:** [June 27, 2025, 9:59am UTC](https://forum.digikey.com/t/what-is-diferent-between-2-fuses/56815/4 "2025-06-27T09:59:00Z")
In that case they are equivalent components. ---
**Author:** ![MrK](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/mrk/32/68663_2.png) [@MrK](https://forum.digikey.com/u/MrK)\ **Post date:** [June 27, 2025, 10:16am UTC](https://forum.digikey.com/t/what-is-diferent-between-2-fuses/56815/5 "2025-06-27T10:16:35Z")
Thanks, last question: If the markings on both components are identical and the size difference is minimal (e.g., within ±0.4 to 1.6 mm), especially if the component is designed to accommodate a wire, then the components can be considered equivalent. ---
**Author:** ![PaulHutch](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/paulhutch/32/3357_2.png) [@PaulHutch](https://forum.digikey.com/u/PaulHutch)\ **Post date:** [June 27, 2025, 10:31am UTC](https://forum.digikey.com/t/what-is-diferent-between-2-fuses/56815/6 "2025-06-27T10:31:09Z")
Yes, that would be normal manufacturer variation for this type of fuse. ---
**Author:** ![MrK](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/mrk/32/68663_2.png) [@MrK](https://forum.digikey.com/u/MrK)\ **Post date:** [June 28, 2025, 9:26am UTC](https://forum.digikey.com/t/what-is-diferent-between-2-fuses/56815/7 "2025-06-28T09:26:16Z")
Thanks for your help