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ST’s discrete surge suppressors, or Trisils™, protect sensitive equipment against lightning strikes and power crossing. They support applications such as power-line modems, Ethernet, POTs, CO/CP, set-top boxes, gateways and telecom lines.

ST, leader in crowbar suppressors, is launching a new generation of products adopting industry-standard part numbering for easy cross reference and drop-in replacement.

Available from 72 to 310 V in SMB packages, these devices offer the highest surge current capability for a given budget. 

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