TVS3301: Maximum withstand voltage

Hi Dillen,

Are you referring to the maximum normal operating voltage? If so, the is the diode's Vrwm would be the spec you need to look at. For example, if you are wanting to protect an I/O line who's signal operates between 0 and 5 V, you would need a diode with a Vrwm of at least 5 V. 

https://e2e.ti.com/blogs_/b/analogwire/posts/esd-fundamentals-part-5-reverse-working-voltage-breakdown-voltage-and-polarity-configuration 

If you're referring to the max voltage the IC being protected can withstand during a surge or ESD event, you will need to refer to the clamping voltage of the diode to see what can effectively protect your IC: https://e2e.ti.com/blogs_/b/powerhouse/posts/esd-fundamentals-part-3-clamping-voltage 

Regards, 

Matt Smith