TVS2701DRBR

The TVS2701 device shunts up to 27 A of IEC 61000-4-5 fault current to protect systems from high-power transients or lightning strikes. The device survives the common industrial signal line EMC requirement of 1-kV IEC 61000-4-5 open circuit voltage coupled through a 42-Ω impedance. The TVS2701 uses a feedback mechanism to ensure precise flat clamping during a fault, keeping system exposure lower than traditional TVS diodes. The tight voltage regulation allows designers to confidently select system components with a lower voltage tolerance, lowering system costs and complexity without sacrificing robustness. The TVS2701 has a ±27-V operating range to enable operation in systems that require protection against reverse wiring conditions.

In addition, the TVS2701 is available in a small SON footprint designed for space constrained applications, offering a significant size reduction compared to standard SMA and SMB packages. Low device leakage and capacitance ensure a minimal effect on the protected line. To ensure robust protection over the lifetime of the product, TI tests the TVS2701 against 5000 repetitive surge strikes at 125°C with no shift in device performance.

The TVS2701 is part of TI’s Flat-Clamp family of surge devices. For a deeper look at the Flat-Clamp family, refer to the Flat-Clamp Surge Protection Technology for Efficient System Protection white paper.

Key Features

• Protection Against 1-kV, 42-Ω IEC 61000-4-5 Surge Test for Industrial Signal Lines
• Bidirectional Polarity Enables Protection Against Bipolar Signaling or Miswiring Conditions
• Clamping Voltage of 34 V at 27-A, 8/20-µs Surge Current
• Standoff Voltage: ±27 V
• Small 3 mm × 3 mm² SON Footprint
• Survives Over 5,000 Repetitive Strikes of 27-A 8/20-µs Surge Current at 125°C
• Robust Surge Protection
  • IEC61000-4-5 (8/20 µs): 27 A
  • IEC61643-321 (10/1000 µs): 3.5 A
• Low Leakage Current
  • 0.8-nA Typical at 27°C
  • 400-nA Maximum at 85°C
• Low Capacitance: 57 pF
• Integrated Level 4 IEC 61000-4-2 ESD Protection