Identifying a varistor

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Rich4349
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Joined: Wed Jul 30, 2008 10:18 am
Location: Kankakee, IL

Identifying a varistor

#1 Post by Rich4349 »

I've had some of these varistors burn out in an electronic device, and the replacements I'm finding online come in about eight different choices. How do I select the right value?
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Grant Bunter
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Re: Identifying a varistor

#2 Post by Grant Bunter »

Contact the manufacturer of the electronics?.
The value will be in the schematic...
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Bill Fitzmaurice
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Re: Identifying a varistor

#3 Post by Bill Fitzmaurice »

The lettering and numbers identify it's values. Somewhere there's a chart to use for comparison.

Rich4349
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Re: Identifying a varistor

#4 Post by Rich4349 »

I finally found the faint, tiny lettering on the BACK. Up till then I was trying to work solely off of the part number on the front. The very friendly assistant Electronics professor at the local Community College was invaluable in helping me. She hooked it up to various oscilloscopes and multimeters and figured out the values.


Came up with this:

https://www.digikey.com/products/en?key ... 95-4286-ND
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Tom Smit
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Re: Identifying a varistor

#5 Post by Tom Smit »

Oh man! That's going to cost you 63 cents per unit!!!
TomS

Rich4349
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Joined: Wed Jul 30, 2008 10:18 am
Location: Kankakee, IL

Re: Identifying a varistor

#6 Post by Rich4349 »

I know, right? At least I don't have to buy 10,000 units this time, or wait 2 months for production time.

I'll just sell a t60 to cover the cost. 😅
2 DR250s, 2 27" Lab15 T-60s, 2 30" Neo Titan 39s, 1 Autotuba...and looking for more!

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