Description
TClamp®xx82S are specifically designed to provide
secondary surge and ESD protection for G.Fast and
other DSL circuit line drivers. These devices integrate
low capacitance, surge-rated steering diodes with a
high power transient voltage suppressor (TVS). The TVS
utilizes snap-back or “crow-bar” technology to minimize
device clamping voltage and features high surge current
capability of 30A (tp=8/20us).
TClampxx82S capacitance is limited to 2.5pF maximum
with a low typical capacitance variation over the
operating voltage range. This ensures correct signal
transmission on DSL lines. The biased bridge structure
allows the device to be used in G.Fast, ADSL, and VDSL
applications with with operating voltages 0f 8, 12, 20,
and 24Vp-p.
TClampxx82S is in a 6-pin SOT-23 package. The leads
are finished with lead-free matte tin. The flow- through
package design simplifies PCB layout.

Features
• Transient Protection to
-IEC 61000-4-2 (ESD) 30kV (Air), 30kV (Contact)
-IEC 61000-4-4 (EFT) 2kV (5/50ns)
-IEC 61000-4-5 (Lightning) 30A (8/20μs)
• Bias diodes prevent charging of TVS capacitance
• Working Voltage Options: 8V, 12V, 20V, 24V
• Low Capacitance: 2.5pF Maximum
• Low Capacitance Variation (1V to VRWM)
• Solid-State Silicon-Avalanche Technology

Applications
• ADSLx / VDSLx Secondary Protection
• G.Fast Line Driver Secondary Protection
• VDSL2 Class-H Line Driver Secondary Protection
• Modems
• Access Equipment
• Central Office Equipment
• Customer Premise Equipment