Bourns IsoM3, IsoM5 and IsoM8 series IsoMOV™ hybrid protector

Bourns has introduced its lineup of IsoMOV™ technology hybrid overvoltage surge protectors. With their integrated gas discharge tube structure and extended temperature range, the IsoMOV™ hybrid protection components promise better reliability and longer life in certain harsh environments. The IsoMOV™ component family continues Bourns’ legacy of quality, innovation and design in overvoltage surge arrestors and sets a new standard of robustness in each size class. The lineup includes three series of devices; model IsoM3, IsoM5 and IsoM8. With nominal surge ratings of 3kA, 5kA and 8kA, these revolutionary new protectors offer performance usually found in larger traditional MOV devices.

Using proprietary computer-aided design techniques to model performance, Bourns engineers have combined its revolutionary EdgMOV™ technology, which greatly reduces typical MOV edge failures, with a unique integrated structure to create a device with the equivalent function of a discrete MOV and GDT in series. The result is a familiar radial disk MOV package that is only slightly thicker and of substantially smaller diameter than similarly rated conventional devices.

Compared to conventional MOV devices, the IsoMOV™ hybrid protectors feature much lower leakage across their extended temperature range resulting in an extended product life as leakage currents are known to age MOV devices. The series combination of MOV and GDT devices is also tolerant of AC line voltage swells. Additionally, the combination yields a device with low capacitance. This means low insertion loss making this  series an ideal solution for the protection of industrial communications, power line communications and high-speed Information and Communication Technology (ICT) equipment. The series is RoHS compliant* and UL listed as a UL 1449 Type 4 component assembly.

Features

• AC voltage ratings 175V to 555V
• Nominal surge ratings 3kA/5kA/8kA
• -40°C to +125°C operation
• Low leakage current
• Low capacitance and insertioloss
• Stable performance throughout life
• Design kit available for quick-turnaound prototype testing
• UL listed UL 1449 Type 4 CA
• RoHS compliant*

Applications

• Critical AC power applications
• White goods
• Motor drives
• AC inverters
• LED lighting and signage
• Surge protective devices (SPDs)

_{* RoHS Directive 2015/863, Mar 31, 2015 and Annex.
“IsoMOV” and “EdgMOV” are trademarks of Bourns, Inc.}