We're looking at the AB-type terminal round cover plate here, threaded connection, screws fixed — it's a sealed electric connector for electrolyte capacitors, and it's pretty much the standard for industrial gear where you need reliable seal and easy termination.

The welding process on these means the joint integrity holds up under thermal cycling, which matters if you're running them in car or communication applications where vibration and heat are constant; most buyers go with the custom specs anyway since the MOQ is typically flexible for.

It's not designed for high-frequency switching environments — the FDD interface type and general enviromental protection rating mean it's better suited for bulk power filtering than anything involving rapid charge-discharge cycles, so keep that in mind if your circuit demands ultra-low ESR.

You'll get a COA with each batch, HPLC purity isn't relevant here but the thread tolerance is usually within 0.1mm, and the cover plate's pressrue relief feature (basically a scored membrane) vents at roughly 1.5 bar — we've seen these hold up fine in 85°C continuous operation for 20 days or so.

Also, the origin is China, HS code 8532909000, and we ship with SDS and TDS included; lead time is about 2-4 weeks depending on quantiy, but we usually have stock for the 30mm and 40mm diameters, so confirm your batch size and we'll quote accordingly.
Our MOQ is typically 500 pieces for this model, but we can discuss smaller trial orders if you're just starting out. Just let us know your needs.
For standard specs, lead time is about 15-20 working days after order confirmation. Customized orders may take a bit longer, usually 25-30 days.
Yes, we can provide a material certificate and a test report for the welding and threaded connection. If you need specific certifications like RoHS or REACH, just tell us in advance.
Absolutely, we offer customization on the thread size, hole pattern, and even the material thickness. Just send us your drawing or specs, and we'll adjust accordingly.
They're packed in cardboard boxes with foam lining to prevent scratches and damage. For long-term storage, keep them in a dry environment; the general environmental protection rating should hold up fine indoors.