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About aluminum electrolytic capacitor pressure valves

Aluminum electrolytic and conductive polymer hybrid aluminum electrolytic capacitors feature a pressure valve to prevent dangerous ruptures in the event of an abnormal voltage or abnormal heat stress.

Make sure to leave the specified amount of space above the capacitor to prevent any interference to pressure valve operation.

Capacitor diameter Space required above the pressure value
⌀8(6.3) ~ ⌀16 2mm or more
⌀18 ~ ⌀35 3mm or more
⌀40 ~  5mm or more
Certain small-diameter products do not contain a pressure valve.
However, even with products without a pressure valve, a capacitor malfunction could cause the discharge of internal gas or electrolytes from the seal.

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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