Date: 05/01/2024

Bourns Introduces Transformative, Space-Saving Surge Protection Solution with its EdgMOV Varistor Series

In a single form-factor, EdgMOV varistors offer high surge capabilities in multiple model options letting designers reduce the size of, or enhance, their protection scheme.

Bourns introduced its advanced, space-saving EdgMOV varistor series that offers breakthrough surge protection performance in a space-saving design. Transformative in letting designers determine the size and level of surge protection for a given application, Bourns EdgMOV varistor series is available in multiple model options, enabling designers to specify a higher surge rating with lower clamping voltage or the same surge rating with a smaller diameter protection solution. The additional flexibility afforded with EdgMOV disc varistors also lets designers select a higher MOV voltage, while maintaining the same clamping voltage, which, in turn, helps reduce the potential of MOV leakage current that is known to cause failures.




Offered in four model family sizes; 7 mm, 10 mm, 14 mm, and 20 mm, with nominal current ratings of 1.5 Ka, 3 Ka, 5 Ka and 8 Ka, respectively, EdgMOV disc varistors are designed to match common MOV footprints, allowing for drop-in replacement without any PCB redesign. Bourns EdgMOV varistors deliver comparable surge ratings of the next larger size of conventional MOV components. For example, a 10 mm Bourns EdgMOV surge protector is rated for 3 Ka nominal current (15 operations), which is comparable to a current typical 14 mm standard MOV (typically also rated at 3 Ka nominal current). Conversely, if a designer is looking to increase primary protector performance without increasing its size, a similarly-sized EdgMOV protector can be selected to replace the existing MOV, providing enhanced performance in the same package size. Another advantage is that the coating material used is rated for use up to 105 °C, which is higher than the standard 85 °C. UL requires components that are rated higher than 85 °C to undergo 1000 hours of an aging test, helping to increase maximum equipment lifespan for end users.

The Bourns EdgMOV disc varistor series is available now. These models are RoHS compliant* and halogen free**. For more detailed product information, please see: www.bourns.com/products/circuit-protection/varistor-products/through-hole.

Source: Bourns

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