DESCRIPTION
The RSM712 transient voltage suppressor (TVS)
diode is designed for asymmetrical (12V to -7V)
protection in multi-point data transmission
standard RS-485 applications. The RSM712 may
be used to protect devices from transient
voltages resulting from electrostatic discharge
(ESD), electrical fast transients (EFT), and
lightning.
The RSM712 features 400 Watts (tp=8/20s) of
power handling capability to accommodate the
higher transient voltage levels which may be
expected in extended common mode
applications. This provides higher equipment
reliability and eliminates the “ guess work”
required when using zener diodes that are not
rated to handle such transient conditions.
The integrated design aids in reducing voltage
over-shoot associated with trace inductance. The
low clamping voltage of the RSM712 minimizes
the stress on the protected transceiver. The
SOT-23 package allows flexibility in the design of
“crowed” circuit boards.
 400 watts peak pulse power (tp=8/20s)
 Transient protection for asymmetrical data lines to
IEC 61000-4-2 (ESD) ±15kV(air), ±8kV(contact)
IEC 61000-4-4 (EFT) 40A (5/50ns)
IEC 61000-4-5 (Lightning) 12A (8/20s)
 Protects two +12V to -7V lines
 Low capacitance
 Low leakage current
 Low clamping voltage
 Solid-state silicon avalanche technology
 RoHS compliant
FEATURES
 P/N suffix V means AEC-Q101 qualified,
e.g:RSM712V