SEM712

Features

Product Name: Ultra-low capacitance TVS

Product model: SEM712

Product Description:

The SEM712 transient voltage suppressor (TVS) diode is designed for asymmetrical (12V to -7V ) protection in multi-point data transmission standard RS-485 applications. The SEM712 may be used to protect devices from transient voltages resulting from electrostatic discharge (ESD), electrical fast transients (EFT), and lightning.

The SEM712 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 SEM712 replaces four discrete components by integrating two 12V and two 7V TVS diodes in a single package. The integrated design aids in reducing voltage over-shoot associated with trace inductance. The low clamping voltage of the SEM712 minimizes the stress on the protected transceiver. The SOT23 package allows flexibility in the design of “crowded” circuit boards.

product features:

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

Protects two +12V to -7V lines

Low capacitance

Low clamping voltage

Solid-state silicon avalanche technology

Applications:

Protection of RS-485 transceivers with extended

common-mode range

Security systems

Automatic Teller Machines

HFC systems

Networks

Package: SOT-23