حفاظت مدار محدودکننده‌های ولتاژ گذرا (تی وی اس) تریستور محافظ اضافه‌ولتاژ (تی اس اس)

Product Attributes

Introduction

This device has been especially designed to protect subscriber line card interfaces (SLIC) against transient over-voltages. Positive overloads are clipped with 2 diodes. Negative surges are suppressed by 2 thyristors, their breakdown voltage being referenced to -VBAT through the gate. This component presents a very low gate triggering current (IGT) in order to reduce the current consumption on printed circuit board during the firing phase. A particular attention has been given to the internal wire bonding. The configuration ensures reliable protection, eliminating the overvoltage introduced by the parasitic inductances of the wiring (Ldi/dt), especially for very fast transients.

Features

• Dual programmable transient suppressor
• Wide negative firing voltage range: VGKRMax = -167V
• Low dynamic switching voltage: VFRM and VGK(BD)
• Low gate triggering current: lGT = 5mA max
• Peak pulse current: IP = 30A for 10/1000us surge
• Holding current: IH = 150mA min