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 = 8/20 μs)

• Transient protection for asymmetrical data lines to

  • IEC 61000-4-2 (ESD) ± 15 kV (air), ± 8 kV (contact)

  • IEC 61000-4-4 (EFT) 40 A (5/50 ns)

  • IEC 61000-4-5 (Lightning) 12 A (8/20 μs)

  
  

• Protects two +12 V – -7 V 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

Packaging

SOT-23

Order Codes

• SM712.TCT: Lead-free, RoHS and WEEE compliant, 3000 pcs. Tape & Reel