Product details

Package name WSON Peak pulse power (8/20 μs) (max) (W) 960 IEC 61000-4-5 (A) 40 Vrwm (V) 18 Breakdown voltage (min) (V) 21.3 Bi-/uni-directional Uni-Directional Number of channels 1 IO capacitance (typ) (pF) 120 Clamping voltage (V) 23.8
Package name WSON Peak pulse power (8/20 μs) (max) (W) 960 IEC 61000-4-5 (A) 40 Vrwm (V) 18 Breakdown voltage (min) (V) 21.3 Bi-/uni-directional Uni-Directional Number of channels 1 IO capacitance (typ) (pF) 120 Clamping voltage (V) 23.8
WSON (DRV) 6 4 mm² 2 x 2
  • Protection Against ±1 kV, 42 Ω IEC 61000-4-5 Surge Test for Industrial Signal Lines
  • Max Clamping Voltage of 24.7 V at 40 A of 8/20 µs Surge Current
  • Standoff Voltage: 18 V
  • Tiny 4 mm2 Footprint
  • Survives Over 5,000 Repetitive Strikes of 35 A 8/20 µs Surge Current at 125°C
  • Robust Surge Protection:
    • IEC 61000-4-5 (8/20 µs): 40 A
    • IEC 61643-321 (10/1000 µs): 6 A
  • Low Leakage Current
    • 1.2 nA Typical at 27°C
    • 9 nA Typical at 85°C
  • Low Capacitance: 116 pF
  • Integrated Level 4 IEC 61000-4-2 ESD Protection
  • Protection Against ±1 kV, 42 Ω IEC 61000-4-5 Surge Test for Industrial Signal Lines
  • Max Clamping Voltage of 24.7 V at 40 A of 8/20 µs Surge Current
  • Standoff Voltage: 18 V
  • Tiny 4 mm2 Footprint
  • Survives Over 5,000 Repetitive Strikes of 35 A 8/20 µs Surge Current at 125°C
  • Robust Surge Protection:
    • IEC 61000-4-5 (8/20 µs): 40 A
    • IEC 61643-321 (10/1000 µs): 6 A
  • Low Leakage Current
    • 1.2 nA Typical at 27°C
    • 9 nA Typical at 85°C
  • Low Capacitance: 116 pF
  • Integrated Level 4 IEC 61000-4-2 ESD Protection

The TVS1800 robustly shunts up to 40 A of IEC 61000-4-5 fault current to protect systems from high power transients or lightning strikes. The device offers a solution to the common industrial signal line EMC requirement to survive up to ±1 kV IEC 61000-4-5 open circuit voltage coupled through a 42 Ω impedance. The TVS1800 uses a unique feedback mechanism to ensure precise flat clamping during a fault, assuring system exposure below 25 V. The tight voltage regulation allows designers to confidently select system components with a lower voltage tolerance, lowering system costs and complexity without sacrificing robustness.

In addition, the TVS1800 is available in a small 2 mm × 2 mm SON footprint which is ideal for space constrained applications, offering a 70 percent reduction in size compared to industry standard SMA and SMB packages. The extremely 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 TVS1800 against 5,000 repetitive surge strikes at high temperature with no shift in device performance.

The TVS1800 is part of TI’s Flat-Clamp family of surge devices. For more information on the other devices in the family, see the Device Comparison Table.

The TVS1800 robustly shunts up to 40 A of IEC 61000-4-5 fault current to protect systems from high power transients or lightning strikes. The device offers a solution to the common industrial signal line EMC requirement to survive up to ±1 kV IEC 61000-4-5 open circuit voltage coupled through a 42 Ω impedance. The TVS1800 uses a unique feedback mechanism to ensure precise flat clamping during a fault, assuring system exposure below 25 V. The tight voltage regulation allows designers to confidently select system components with a lower voltage tolerance, lowering system costs and complexity without sacrificing robustness.

In addition, the TVS1800 is available in a small 2 mm × 2 mm SON footprint which is ideal for space constrained applications, offering a 70 percent reduction in size compared to industry standard SMA and SMB packages. The extremely 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 TVS1800 against 5,000 repetitive surge strikes at high temperature with no shift in device performance.

The TVS1800 is part of TI’s Flat-Clamp family of surge devices. For more information on the other devices in the family, see the Device Comparison Table.

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Technical documentation

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Type Title Date
* Data sheet TVS1800 18-V Flat-Clamp Surge Protection Device datasheet (Rev. A) PDF | HTML 02 Mar 2018
Application note ESD and Surge Protection for USB Interfaces (Rev. B) PDF | HTML 11 Jan 2024
Application brief Protecting I/O modules from surge events 04 Feb 2019
Application brief TVS Surge Rating: Power vs. Current 12 Nov 2018
White paper Demystifying surge protection 06 Nov 2018
User guide Flat Clamp TVS Evaluation Module—Adaptor Boards 10 Sep 2018
Application note How to select a Surge Diode 29 Aug 2018
Application brief Flat-Clamp TVS Layout in SMA/SMB Footprints 03 Apr 2018
Application note TVS Surge Protection in High-Temperature Environments 23 Mar 2018
User guide TVS0500-3300 Evaluation Module—Adaptor Boards User's Guide (Rev. B) 08 Mar 2018
White paper Flat-Clamp surge protection technology for efficient system protection 15 Jan 2018

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

FLAT-CLAMP-TVS-EVM — TVSxx0x precision surge protection diode evaluation module

The FLAT-CLAMP-TVS-EVM (Precision Surge Protection Diode Adaptor Board Evaluation Module) demonstrates the characteristics, operation, and use of the TVSxx0x family of devices. The TVSxx0x family of devices are precision clamps that keep ultra-low and flat clamping voltages during transient (...)
User guide: PDF
Not available on TI.com
Simulation model

TVS1800 IBIS Model

SLVMCE3.ZIP (3 KB) - IBIS Model
Simulation model

TVS1800 PSpice Transient Model

SLVMCD9.ZIP (45 KB) - PSpice Model
Simulation model

TVS1800 TINA-TI Transient Reference Design

SLVMCD1.TSC (132 KB) - TINA-TI Reference Design
Simulation model

TVS1800 TINA-TI Transient Spice Model

SLVMCD2.ZIP (12 KB) - TINA-TI Spice Model
Reference designs

TIDA-010037 — High accuracy split-phase CT electricity meter reference design using standalone ADCs

This reference design implements Class 0.1 split-phase energy measurement using high-performance, multi-channel analog-to-digital converters (ADC). The independent ADC samples the output of current transformers (CT) at 8 kHz to measure the current and voltage of each leg of the AC mains. The (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-010008 — Flat-Clamp TVS based Reference Design for Protection Against Transient for Grid Applications

This reference design features multiple approaches for  protecting AC or DC analog input, DC analog output, AC or DC binary input, digital output with a high side or low side driver, LCD bias supply, USB interfaces (power and data) and onboard power supplies with 24, 12 or 5V input used in (...)
Design guide: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
WSON (DRV) 6 Ultra Librarian

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