Discrete surge suppressors  

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.

They feature:

  • Compliance with the highest telecommunications standards such as GR-1089 core, ITU-T-K20/K21, VDE0433, VDE0878, IEC 61000-4-5, and FCC part 68
  • Ultralow-voltage versions down to 8 V, suitable for protecting low-voltage transformers in T1/E1 and Ethernet links without saturation
  • High-voltage versions up to 400 V to prevent firing with power crossing, so lowering maintenance costs in remote central offices by saving PTC cost and fuse replacement
  • Availability in low (LC) and micro (MC) capacitance levels to be compatible with digital transmissions such as ADSL2 and ADSL2+

A new generation of discrete surge suppressors will soon be available, offering additional cost savings.
 

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