SM712
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 replaces four discrete ponents 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 SM712 minimizes the stress on the protected transceiver. The SOT23 package allows flexibility in the design of “crowded” circuit boards.
Circuit Diagram
Features
- Transient protection for high speed data lines IEC 61000-4-2(ESD)±15KV(air),±8KV(contact) IEC 61000-4-4(EFT) 40A (5/50ns) IEC 61000-4-5(Lightning) 12A (8/20us)
- Protects two +12V to -7V lines
- Low capacitance
- Low clamping voltage
- Solid-state silicon...
