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Product Attributes

Introduction

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.

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 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