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About the exterior material and insulation of aluminum electrolytic capacitors

The external packaging of aluminum electrolytic capacitors is not guaranteed for insulation (excluding screw terminal products).
The external sleeves are for displaying the capacitor rating and lot number, and are not designed to provide insulation. Do not use as is in locations that require insulation functions.

sleeve
Sleeve image diagram

The following are the two types of external sleeves we use as standard with our products.

External sleeve material Main products using Parts number:
18-digit code (design code)
-Polyethylene terephthalate (PET) sleeves
  • Radial Lead type
  • Snap-in type
"D" or "S"
-Polyvinyl chloride (PVC) sleeves
  • Screw Terminal type
"U" or "M"
Guaranteed insulation for screw terminal products
Image of screw terminal product

Fig.2 Image of screw terminal product

We guarantee the following for all series of screw terminal products.
Insulation resistance A value of 100MΩ or higher measured when using a 500V DC insulation resistance tester between the terminals batched together and the mounting band, which is attached to the case covered with an insulating sleeve.
Dielectric strength No abnormality detected even if 2,000 VAC is applied for 1 minute between the terminals batched together and the mounting band, which is attached to the case covered with an insulating sleeve.
Guaranteed insulation for other than screw terminal products

With snap-in type aluminum electrolytic capacitors, we may be able to propose exterior materials with insulation properties. Please consult with us for details.

If you have any questions or inquiries that do not apply to the above, please contact us at the following address.

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