SM712電路保護(hù)的TVS-二極管規(guī)格書PDF中文資料

DESCRIPTION

The SM712 transient voltage suppressor (TVS)

diode is designed for asymmetrical (12V to -7V)

protection in multi-point data transmission standard

RS-485 applications. The SM712 may be used to

protect devices from transient voltages resulting

from electrostatic discharge (ESD), electrical fast

transients (EFT), and lightning.

The SM712 features 400 Watts (tp=8/20μs) 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 SM712 minimizes the

stress on the protected transceiver. The SOT-23

package allows flexibility in the design of “crowed”

circuit boards.

FEATURES

400 watts peak pulse power (tp=8/20μs)

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 (8/20μs)

Protects two +12V to -7V lines

Low capacitance

Low leakage current

Low clamping voltage

Solid-state silicon avalanche technology

RoHS compliant