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I am looking at a VGA to HDMI conversion circuit, and right near the HDMI connector is an array of these symbols:

mysterious schematic symbol

By the values posted by these symbols, it looks like some sort of capacitor, but I have never seen this strange backwards-z symbol before, and hours of internet searching have given me no clarity. Is this some odd, alternate symbol for something common?

Thanks.

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2 Answers 2

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That is a varistor symbol. People use several and this is one.

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  • \$\begingroup\$ It must be a very uncommon iteration; a quick search on varistor symbols doesn't include a single image of this symbol. \$\endgroup\$
    – Dan Yetman
    Apr 1, 2019 at 1:08
  • \$\begingroup\$ It's not the most common, but I put "varistor" into bing Images and found a few examples. It might also be something very similar to a varistor but a little different technology. \$\endgroup\$ Apr 1, 2019 at 1:13
  • \$\begingroup\$ I just tried Bing, and got a good result in the first twenty images. Strange that Google let me down so badly! \$\endgroup\$
    – Dan Yetman
    Apr 1, 2019 at 1:27
  • \$\begingroup\$ That's why Bing is my favorite :^) \$\endgroup\$ Apr 1, 2019 at 2:07
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They are ESD suppressors such as Panasonic EZAEG2A.

Panasonic uses the bipolar Transient Voltage Suppressor (TVS) symbol on their datasheet, perhaps explaining the Dx designators, but I think they're actually just varistors.

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