# Exploding Capacitor **URL:** \ **Category:** Capacitors\ **Tags:** united-chemi-con, cross-reference, aluminum-electrolytic-capacitors\ **Created:** [July 15, 2020, 3:06pm UTC](https://forum.digikey.com/t/exploding-capacitor/7402 "2020-07-15T15:06:35Z")\ **Posts on this page:** 15\ **Page:** 1
**Author:** ![thechickenbaster](https://avatars.discourse-cdn.com/v4/letter/t/b9bd4f/32.png) [@thechickenbaster](https://forum.digikey.com/u/thechickenbaster)\ **Post date:** [July 15, 2020, 3:06pm UTC](https://forum.digikey.com/t/exploding-capacitor/7402/1 "2020-07-15T15:06:35Z")
Will you look up a SAMYOUNG CD 256 CAPACITOR for match I bought a 390uf 250v installed and it got hot and POPPED ALREADY ? the SAMYOUNG CD 256 READS 390UF 250WV 105 C So I need another Capacitor please. ---
**Author:** ![Robert\_Fay](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/robert_fay/32/6529_2.png) [@Robert\_Fay](https://forum.digikey.com/u/Robert_Fay)\ **Post date:** [July 15, 2020, 3:16pm UTC](https://forum.digikey.com/t/exploding-capacitor/7402/2 "2020-07-15T15:16:23Z")
It looks like you ordered part [565-4439-ND](https://www.digikey.com/product-detail/en/united-chemi-con/ETXH251VSN391MR30S/565-4439-ND/5824642). My only concern with just ordering another one, is if you have determined what caused the original part and the replacement part to become damaged? It that has not been repaired it is likely that ordering a new capacitor will not fix the issue. -Robert ---
**Author:** ![thechickenbaster](https://avatars.discourse-cdn.com/v4/letter/t/b9bd4f/32.png) [@thechickenbaster](https://forum.digikey.com/u/thechickenbaster)\ **Post date:** [July 15, 2020, 3:18pm UTC](https://forum.digikey.com/t/exploding-capacitor/7402/3 "2020-07-15T15:18:59Z")
I had 2 capacitors worn out by time and replaced both the 390uf blew out the other good and it was a loud POP SOUND last night ? ---
**Author:** ![thechickenbaster](https://avatars.discourse-cdn.com/v4/letter/t/b9bd4f/32.png) [@thechickenbaster](https://forum.digikey.com/u/thechickenbaster)\ **Post date:** [July 15, 2020, 3:21pm UTC](https://forum.digikey.com/t/exploding-capacitor/7402/4 "2020-07-15T15:21:40Z")
is there a stronger with more heat rating or can you match up like for like? ---
**Author:** ![thechickenbaster](https://avatars.discourse-cdn.com/v4/letter/t/b9bd4f/32.png) [@thechickenbaster](https://forum.digikey.com/u/thechickenbaster)\ **Post date:** [July 15, 2020, 3:22pm UTC](https://forum.digikey.com/t/exploding-capacitor/7402/5 "2020-07-15T15:22:52Z")
im not able to match specs exaclty ---
**Author:** ![RobertCNelson](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/robertcnelson/32/12_2.png) [@RobertCNelson](https://forum.digikey.com/u/RobertCNelson)\ **Post date:** [July 15, 2020, 3:24pm UTC](https://forum.digikey.com/t/exploding-capacitor/7402/6 "2020-07-15T15:24:13Z")
> [@thechickenbaster](#): > > I had 2 capacitors worn out by time and replaced both the 390uf blew out the other good and it was a loud POP SOUND last night ? How fast did it pop? I’m wondering if it got accidentally reversed when replaced? Regards, ---
**Author:** ![thechickenbaster](https://avatars.discourse-cdn.com/v4/letter/t/b9bd4f/32.png) [@thechickenbaster](https://forum.digikey.com/u/thechickenbaster)\ **Post date:** [July 15, 2020, 3:26pm UTC](https://forum.digikey.com/t/exploding-capacitor/7402/7 "2020-07-15T15:26:16Z")
about 3 hours Im thinking maybe the solder job was’nt the best ---
**Author:** ![thechickenbaster](https://avatars.discourse-cdn.com/v4/letter/t/b9bd4f/32.png) [@thechickenbaster](https://forum.digikey.com/u/thechickenbaster)\ **Post date:** [July 15, 2020, 3:27pm UTC](https://forum.digikey.com/t/exploding-capacitor/7402/8 "2020-07-15T15:27:54Z")
is there a Good, Better ,Best version of that capacitor? ---
**Author:** ![RobertCNelson](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/robertcnelson/32/12_2.png) [@RobertCNelson](https://forum.digikey.com/u/RobertCNelson)\ **Post date:** [July 15, 2020, 3:33pm UTC](https://forum.digikey.com/t/exploding-capacitor/7402/9 "2020-07-15T15:33:06Z")
The Capacitor in question [565-4439-ND](https://www.digikey.com/product-detail/en/united-chemi-con/ETXH251VSN391MR30S/565-4439-ND/5824642) is rated for 250V volts. If we assume it was installed correctly, that’s a lot of energy needed to destroy it. For that much voltage, there must be some other damage on the board, is there anything obvious on the pcb? Regards, ---
**Author:** ![thechickenbaster](https://avatars.discourse-cdn.com/v4/letter/t/b9bd4f/32.png) [@thechickenbaster](https://forum.digikey.com/u/thechickenbaster)\ **Post date:** [July 15, 2020, 3:39pm UTC](https://forum.digikey.com/t/exploding-capacitor/7402/10 "2020-07-15T15:39:15Z")
Nothing everything else looks good ---
**Author:** ![thechickenbaster](https://avatars.discourse-cdn.com/v4/letter/t/b9bd4f/32.png) [@thechickenbaster](https://forum.digikey.com/u/thechickenbaster)\ **Post date:** [July 15, 2020, 3:41pm UTC](https://forum.digikey.com/t/exploding-capacitor/7402/11 "2020-07-15T15:41:45Z")
looks like carbon track across solder terms may have been the fault? ---
**Author:** ![thechickenbaster](https://avatars.discourse-cdn.com/v4/letter/t/b9bd4f/32.png) [@thechickenbaster](https://forum.digikey.com/u/thechickenbaster)\ **Post date:** [July 15, 2020, 3:45pm UTC](https://forum.digikey.com/t/exploding-capacitor/7402/12 "2020-07-15T15:45:23Z")
hate to say it —Maybe self inflicted i’ll try one more time what is the best one to go with? ---
**Author:** ![thechickenbaster](https://avatars.discourse-cdn.com/v4/letter/t/b9bd4f/32.png) [@thechickenbaster](https://forum.digikey.com/u/thechickenbaster)\ **Post date:** [July 15, 2020, 4:02pm UTC](https://forum.digikey.com/t/exploding-capacitor/7402/13 "2020-07-15T16:02:57Z")
Is there a better capacitor to go with? ---
**Author:** ![thechickenbaster](https://avatars.discourse-cdn.com/v4/letter/t/b9bd4f/32.png) [@thechickenbaster](https://forum.digikey.com/u/thechickenbaster)\ **Post date:** [July 15, 2020, 4:29pm UTC](https://forum.digikey.com/t/exploding-capacitor/7402/14 "2020-07-15T16:29:33Z")
IS THERE A BETTER BRAND TO GO WITH? ---
**Author:** ![rick\_1976](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/rick_1976/32/1571_2.png) [@rick\_1976](https://forum.digikey.com/u/rick_1976)\ **Post date:** [July 15, 2020, 4:35pm UTC](https://forum.digikey.com/t/exploding-capacitor/7402/15 "2020-07-15T16:35:59Z")
Violent short-term failures of the sort described usually indicate a major fault of some kind. The specifications of the replacement mentioned would appear to be compatible with that of the original device, in which case simply getting a “better” device will not solve the issue. Installing capacitors of this type backwards will result in their prompt, though not necessarily immediate destruction and would appear to be the most likely explanation for the problem.