Description

The SM series of transient voltage suppressors (TVS) are designed to protect components which are connected to data and transmission lines from voltage surges caused by electrostatic discharge (ESD), electrical fast transients (EFT), and lightning.

TVS diodes are characterized by their high surge capability, low operating and clamping voltages, and fast response time. This makes them ideal for use as board level protection of sensitive semiconductor components. The dual-junction common-anode design allows the user to protect one bidirectional data line or two unidirectional lines. The low profile SOT23 package allows flexibility in the design of “crowded” circuit boards.

The SM series will meet the surge requirements of IEC 61000-4-2 (Formerly IEC 801-2), Level 4, “Human Body Model” for air and contact discharge.

Features

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

♦ Transient protection for data & power 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 one bidirectional line or two unidirectional lines

♦ Working Voltages: 5V, 12V, 15V, 24 and 36V

♦ Low clamping voltage

♦ Solid-state silicon avalanche technology

Applications

♦ Cellular Handsets and Accessories

♦ Portable Electronics

♦ Industrial Controls

♦ Set-Top Box

♦ Servers, Notebook, and Desktop PC