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Product Variant Information section
Product Specification Section
Pricing Section

Stock: 365,223

Web Price
$0.705 USD Each

$7.00 reeling fee is amortized over the number of components for each reel. Mini-Reels are a custom product and are non-cancelable and non-returnable.

Cost Per Unit: $4.205


Attributes Table
Breakdown Voltage-Min 7.5V
Clamping Voltage-Max 12V
Directional Bi-Directional
Power Dissipation 400W
Peak Output Current 17A
Reverse Leakage Current 1µA
Peak Power 400W
Standoff Voltage 12V
Operating Temp Range -55°C to +125°C
Storage Temperature Range -55°C to +150°C
Capacitance 75pF
Features and Applications

The SM712.TCT is a transient voltage suppressor (TVS) diode which is designed for asymmetrical (12V to -7V ) protection in multi-point data transmission standard RS-485 applications. Available in a SOT-23 package.

The SOT23 package allows flexibility in the design of “crowded” circuit boards.


  • 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


  • Protection of RS-485 transceivers with extended common-mode range
  • Security systems
  • Automatic Teller Machines
  • HFC systems
  • Networks