Surge Protection Reference Design for PLC Analog Input Module
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Key Document


Protection is an important topic for designs in factory automation and control. The reference design shows the superior protection capabilities of new 33-V protection devices (such as TVS3300) for factory automation and control. The Canadian Standards Association (CSA) Group has performed surge testing according to IEC 61000-4-5 on this reference design. The design has the required accuracy to measure the behavior of protection devices before and after EMI stress with respect to leakage and clamping voltage.

  • Differential TVS leakage measurement accuracy < 35 pA
  • Measurement repeatability <0.002 % at 25 C and < 0.05 % from -35 to 85 C
  • 50 and 60 Hz rejection
  • IEC 61000-4-5 class II (+/- 1 kV at 42 ohm source impedance)

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Design Guide

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Design Files

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TI Devices (1)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
TVS3300  33V flat-Clamp surge protection device  Circuit protection ICs  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
TVS3300 Download

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Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 1107 26 Jan 2018
Design files (6)
Title Type Size (KB) Date
PDF 820 02 Feb 2018
PDF 3273 02 Feb 2018
ZIP 688 02 Feb 2018
ZIP 2208 02 Feb 2018
PDF 67 02 Feb 2018
PDF 477 02 Feb 2018

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