Where to Find Small Plastic Potting Cases (Similar to Class-X Capacitor Casings) - Page 1
Forum section: electronics / general

author: MyProjectBox
author_rank: Newbie
timestamp: April 03, 2025, 08:43:55 pm
content: Hi everyone,I'm looking for small plastic enclosures suitable for potting miniature electronic modules with fly-leads. Essentially, I'm searching for empty casings similar to those used for Class-X capacitors.I've seen this type of housing used in commercial products, such as Theben's light dimmer modules, where the electronics are encapsulated in epoxy with wires extending out. Since these cases exist in manufactured products, I assume they must be available somewhere.Does anyone know where to source these empty potting enclosures? Any recommendations for suppliers or alternative solutions would be greatly appreciated!Thanks in advance.

author: themadhippy
author_rank: Super Contributor
timestamp: April 03, 2025, 09:26:45 pm
content: https://cpc.farnell.com/w/c/electrical-lighting/enclosures-racks-accessories/prl/results?st=potting%2Bbox&sort=P_PRICE

author: thm_w
author_rank: Super Contributor
timestamp: April 03, 2025, 10:06:48 pm
content: Recent thread:https://www.eevblog.com/forum/manufacture/source-for-small-potting-boxes/

author: Smokey
author_rank: Super Contributor
timestamp: April 04, 2025, 07:20:50 am
content: Quote from: thm_w on April 03, 2025, 10:06:48 pmHey Look! It's Me!

author: JPortici
author_rank: Super Contributor
timestamp: April 04, 2025, 09:40:24 am
content: we get them from Teko!

author: MyProjectBox
author_rank: Newbie
timestamp: April 04, 2025, 07:13:58 pm
content: Thanks for the link. I appreciate the quick reply. But unfortunately these are the standard type of potting enclosures, that I already know of, and none of them are what I'm looking for. I need something much smaller/compact and flatter. Basically a empty class-x capacitor case, like the type used in my pictures.

author: MyProjectBox
author_rank: Newbie
timestamp: April 04, 2025, 07:27:41 pm
content: These are all very nice potting enclosures so thank for that😉. But I'm looking for the emty class-x capacitor casing that is very slim snd compact for my circuit module. I have seen devices potted in these little "yellow capacitor" cases. I just don't know were people are sourcing them from

author: MyProjectBox
author_rank: Newbie
timestamp: April 04, 2025, 07:33:33 pm
content: Thanks. I looked at there website, but unfortunately I can't find the small yellow class-x capacitor style case. I need it to be very small😰

author: thm_w
author_rank: Super Contributor
timestamp: April 04, 2025, 10:59:09 pm
content: Quote from: MyProjectBox on April 04, 2025, 07:27:41 pmPlease use the Quote button.If you read the thread linked it would lead to a supplier that has what you are asking for, I'm sure many other suppliers are available:https://www.alibaba.com/product-detail/Plastic-Capacitor-Housing-Box_1600520227703.html

author: tom66
author_rank: Super Contributor
timestamp: April 04, 2025, 11:03:41 pm
content: 3D printer? You'd probably want to dip the outside in a compound to seal it well, but you can have any size of case you want for the low low cost of some 3D print filament. PETG is pretty tough and can be printed pretty easily.Chances are these cases are injection-moulded custom components that the capacitor manufacturer owns the tools for, or subcontracts out - in other words, not commercial off the shelf.