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

Product Attributes

Introduction

These high voltage symmetrical transient voltage suppressor devices are designed to protect two wire telecommunication applications against transients caused by lightning strikes and a.c. power lines. Offered in five voltage variants to meet battery and protection requirements they are guaranteed to suppress and withstand the listed international lightning surges in both polarities. Transients are initially clipped by breakdown clamping until the voltage rises to the breakover level, which causes the device to crowbar. The high crowbar holding current prevents d.c. latchup as the current subsides. These monolithic protection devices are fabricated in ion-implanted planar structures to ensure precise and matched breakover control and are virtually transparent to the system in normal operation. The small-outline 8-pin assignment has been carefully chosen for the TISP series to maximise the inter-pin clearance and creepage distances which are used by standards (e.g. IEC950) to establish voltage withstand ratings.

Features

• Ion-Implanted Breakdown Region Precise and Stable Voltage Low Voltage Overshoot under Surge
• Planar Passivated Junctions Low Off-State Current < 10 μA
• Rated for International Surge Wave Shapes
• Surface Mount and Through-Hole Options
• UL Recognized, E132482