28. GDT Applications
Question.8
Tony is selecting surge protection for a high-speed DSL telecom line (data rate up to 17 MHz).
Two options are available:
● Option A: Littelfuse CG90L GDT — 90V, 20 kA
● Option B: Standard disc MOV — 90V, 10 kA
Both have similar voltage ratings and enough surge capability. However GDT is always selected-Why?