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TVS1801DRBR

18-V bidirectional flat-clamp surge protection device

Availability: 1,784

Packaging

Package | PIN: VSON (DRB) | 8
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $0.71
10-24 $0.64
25-99 $0.59
100-249 $0.50
250-499 $0.46
500-749 $0.38
750-999 $0.30
1000+ $0.27

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 27.4 V at 30 A of 8/20-µs Surge Current
  • Standoff Voltage: ±18 V
  • Small 3-mm x 3-mm SON Footprint
  • Survives Over 5,000 Repetitive Strikes of 30-A 8/20-µs Surge Current at 125°C
  • Robust Surge Protection
    • IEC61000-4-5 (8/20 µs): 30 A
    • IEC61643-321 (10/1000 µs): 4.5 A
  • Low Leakage Current
    • 0.4-nA Typical at 27°C
    • 280-nA Maximum at85°C
  • Low Capacitance: 65 pF
  • Integrated Level 4 IEC 61000-4-2 ESD Protection

All trademarks are the property of their respective owners.

Texas Instruments  TVS1801DRBR

The TVS1801 device shunts up to 30 A of IEC 61000-4-5 fault current to protect systemsfrom high-power transients or lightning strikes. The device survives the common industrial signalline EMC requirement of 1-kV IEC 61000-4-5 open circuit voltage coupled through a 42-Ω impedance.The TVS1801 uses a feedback mechanism to ensure precise flat clamping during a fault, keepingsystem exposure lower than traditional TVS diodes. The tight voltage regulation allows designers toconfidently select system components with a lower voltage tolerance, lowering system costs andcomplexity without sacrificing robustness. The TVS1801 has a ±18-V operating range to enableoperation in systems that require protection against reverse wiring conditions.

In addition, the TVS1801 is available in a small SON footprint designed for spaceconstrained applications, offering a significant size reduction compared to standard SMA and SMBpackages. Low device leakage and capacitance ensure a minimal effect on the protected line. Toensure robust protection over the lifetime of the product, TI tests the TVS1801 against 5000repetitive surge strikes at 125°C with no shift in device performance.

The TVS1801 is part of TI’s Flat-Clamp family of surge devices. For a deeper look at theFlat-Clamp family, refer to the Flat-Clamp Surge Protection Technology for Efficient SystemProtection white paper.