Guidelines and Precautions for Use
For using aluminum electrolytic capacitors (hereafter "capacitor/capacitors"), please pay attention to the guidelines listed below.

For circuit design
1)

Please make sure that the operating condition and the mounting condition are within the rated value which
is described in the catalog or the speciﬁcation.

2)

Please make sure that the operating temperature and the operating ripple current are within the rated value
which is described in the catalog or the speciﬁcation.
a) The operating temperature aﬀects the lifetime of the capacitor. Generally speaking, the expected lifetimeof the capacitor is 2times longer by each 1OdegC reduction. Please use the capacitor within the upper
limit of the category temperature.
b) Do not apply an excessive ripple current (higher than the rated ripple current) to the capacitor. An excessive
ripple current may cause abnormal heating which leads to a damage or a shortening lifetime of the capacitor. Please use the capacitor within the rated ripple current described in the catalog or the speciﬁcation.

3)
4)

Please choose a capacitor which meets the designed lifetime of the application.
The capacitor has a polarity. Do not apply a reverse voltage or an alternating current voltage to the capacitor. Please use the bi-polar capacitor for the circuit which polarity may change or be unstable. Do not use
the bi-polar capacitor in an alternating current circuit.

5)

Do not use the general-purpose capacitor for the circuit which has a repeat of a rapid charge and discharge.
Please contact us if the capacitor is exposed in a repeat of a rapid charge and discharge.

6)

Do not apply an excessive voltage (higher than the rated voltage) to the capacitor.

7)

The exterior sleeve of the capacitor is not insulated. Do not place the capacitor where insulation is required.
The case of the capacitor is not insulated. Please make sure that the case of the capacitor is insulated fromthe circuit pattern and the lead-wires.

8)

Do not use the capacitor in the environments listed below.
a) In the environment where the capacitor is exposed in water, salt water, oil or where condensation may occur.
b) In the environment where poisonous gas (hydrogen sulﬁde, sulfurous acid, nitrous acid, chlorine, ammonia, etc) is ﬁlled in atmosphere.
c) In the environment where ozone, ultra-violet, radiation are irradiated.
d) In the environment where the capacitor is exposed in the vibration or physical shock which is severer than
the range deﬁned in the catalog or the speciﬁcation.

9)

For mounting the capacitor, please follow the guidelines listed below.
a) Please make sure that the hole space of the circuit board matches the lead-wire space of the capacitor.
b) Please make sure that the space above the pressure relief vent is greater than the value listed below.
Cace DiameterSpace

φ6.3 to φ162mm or more

φ183mm or morec) Please make sure that the circuit wires or the circuit pattern is not located above the pressure relief vent.
d) If the distance between the top of the capacitor and the circuit board above the capacitor is shorter thanthe listed in 9.b, please make a hole in the board in order to relieve a gas from the pressure relief vent.
10) Design the circuit pattern so that the sealing rubber will not be placed on it.

5Guidelines and Precautions for Use11) Do not place heat-generating devices around the capacitor.
Do not place heat-generating devices on the other side of the capacitor.
12) Please refer to "surface mount type recommended land pattern" in the catalog or the speciﬁcation.
13) For circuit design, please follow the guidelines listed below.
a) Temperature and/or the frequency of a ripple current aﬀect the electrical characteristics of the capacitor.
Please consider the variation of the electrical characteristics for the circuit design.
b) For mounting the capacitor on a double-sided circuit board, do not place the capacitor on excessive holesof the circuit board.
c) When the multiple capacitors are connected in parallel, please consider the current balance for the capacitors.
d) When the multiple capacitors are connected in series, please put resistors (voltage divider) in parallel tokeep the voltage balance for the capacitors.

Mounting1)

Do not reuse the capacitor which has been mounted and electrically loaded on the circuit board.

2)

A transient recovery voltage may occur in the capacitor. In this case, please discharge the capacitor
through a 1k ohm resistor.

3)

A high leakage current may occur after the capacitor stores for a long period.
Please apply voltage to the capacitor through a 1k ohm resistor.

4)

Please check the rated capacitance and the rated voltage of the capacitor before mounting on the circuit board.

5)

Please check the polarity of the capacitor before mounting on the circuit board.

6)

Do not drop the capacitor on the ﬂoor. Do not use the capacitor which has been dropped on the ﬂoor.

7)

Do not deform the capacitor.

8)

Do not apply a force which causes a break of the case of the capacitor.

9)

Please make sure that the hole space of the circuit board matches the lead-wire space of the capacitor.

10) Please adjust the clinch force of an automatic insertion machine in order to avoid excessive stress to thelead-wires of the capacitor.
11) Do not apply an excessive impact to the capacitor by the suction nozzle of an automatic insertion machineor a chip mounter also the impacts by a component checker or a centering operation.
12) For soldering by a soldering iron, please check the guidelines listed below.
a) Please make sure that the soldering condition (temperature and duration) is within the range deﬁned in
the catalog or the speciﬁcation.
b) If the hole space of the circuit board does not match the space of the lead-wires of the capacitor, pleaseapply a lead-wire forming before soldering. Do not apply an excessive stress to the capacitor when applying
a lead-wire forming.
c) Do not reuse the capacitor which has been mounted on a circuit board.
d) Do not let the tip of a soldering iron contact on the body of the capacitor.

6Guidelines and Precautions for Use13) For ﬂow soldering, please follow the guidelines listed below.
a) Do not soak the body of the capacitor in a melted solder. Please make sure that the soldering is performedon the other side of the capacitor.
b) Please make sure that the soldering conditions (preheating, solder temperature, soak duration) are within
the range deﬁned in the catalog or the speciﬁcation.
c) Do not leave ﬂux on the body of the capacitor.
d) Do not let the metallic lead-wires of the other components contact on the capacitor.
14) For reﬂow soldering, please follow the guidelines listed below.
a) Please make sure that the soldering conditions (preheating, solder temperature, duration) are within therange deﬁned in the catalog or the speciﬁcation.
b) Do not apply excessive heating to the capacitor when using an infrared heater. The color or/and the material of the capacitor aﬀect the absorption of infrared ray.
c) Cracks of the ink (for indicating the cathode polarity) may occur, however the cracks do not aﬀect thereliability of the capacitor.
15) Do not apply any mechanical stress listed below to the capacitor after mounting on the circuit board.
a) Do not tilt, lean, twist the capacitor.
b) Do not use the capacitor as a grip for moving a circuit board manually.
c) Do not hit the capacitor. When stacking circuit boards, do not let the capacitor contact a circuit board or
the other components.
16) For washing a printed circuit board. Do not wash the capacitor with a halogen-containing solvent. Thesolvent-proof capacitor must be used when washing is required. Please make sure that the washing condition is within the range deﬁned in the catalog or the speciﬁcation. The capacitor may fail due to a type ofwashing solvent. Please pay attention to the risks listed below.
a) A halogen-containing solvent may cause electrochemical corrosion in the capacitor.
b) An alkali-containing solvent may cause corrosion (dissolution) of the aluminum case of the capacitor.
c) Xylene may cause degradation of the sealing rubber.
d) Acetone may cause a loss of the ink.
e) A terpene/petroleum-containing solvents may cause degradation of the sealing rubber.
17) For washing the solvent-proof capacitor, please follow the guidelines listed below.
a) Please control the conductivity, pH, speciﬁc gravity, moisture content, etc of a washing solvent.
b) Do not store the capacitor where a washing solvent is vaporized or in an airtight enclosure. Do not dry thecapacitor or the circuit board by heat higher than the upper limit of the operating temperature.
18) Do not use a glue and/or a coating material including halogen.
19) For using a glue and/or a coating material, please follow the guidelines listed below.
a) Do not leave ﬂux or a stain between the capacitor and the circuit board.
b) Please dry out a washing solvent before using a glue and/or a coating material. Do not cover the sealing
rubber of the capacitor by a glue and/or a coating material.
c) Please make sure that the thermal curing condition for a glue and/or a coating material is within the rated
value which is described in the catalog or the speciﬁcation.

During use in application
1)
2)

Do not touch the capacitor.
Do not make a short-circuit between the lead-wires by a conductive material. Do not expose the capacitor
in a liquid/conductive solution.

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Guidelines and Precautions for Use
3)

For mounting the circuit board, please follow the guideline listed below. Do not use the devise in the following environmental conditions:a) In the environment where the capacitor is exposed in water or oil.
b) In the environment where the capacitor is exposed in direct sunlight.
c) In the environment where the capacitor is exposed in ozone, ultraviolet ray, or radiation.
d) In the environment where poisonous gas (hydrogen sulﬁde, sulfurous acid, nitrous acid, chlorine, ammonia,etc) is ﬁlled in atmosphere.
e) In the environment where the capacitor is exposed in the vibration or physical shock which is severer than
the range deﬁned in the catalog or the speciﬁcation.

Maintenance1)

For industrial applications, please perform periodical inspections.

2)

In periodical inspection, please check the points listed below.
a)Appearance (open-vent, a leakage of the electrolyte)b) Electrical characteristics (leakage current, capacitance, dissipation factor, and the other items deﬁned inthe catalog or the speciﬁcation)

In case of a problem
1)

If the safety-vent of the capacitor is opened and a gas relive from it, please turn oﬀ the main power supplyof the application or plug oﬀ the power code from an outlet.

2)

A high temperature gas over +1OOdegC may come from the safety-vent of the capacitor. Leave the bodyfrom the capacitor. If a gas from the capacitor happen to coming into the eyes, please wash the eyes withwater immediately. If a gas from the capacitor happen to coming into the mouth, please gargle the mouthwith water immediately. Do not lick the electrolyte of the capacitor. If the electrolyte of the capacitor istouched on the skin, please rinse it out with a soap and water.

Storage conditions
1)

Do not store the capacitor in high temperatures and/or in high humidity. Please store the capacitor at room
temperature between 5 and 35degC in relative humidity below 75%. Please use the capacitor within one
year after the shipment.

2)

Do not store the capacitor in the environment where it is exposed in water, oil, or salt water.

3)

Do not store in the environment where poisonous gas (hydrogen sulﬁde, sulfurous acid, nitrous acid,chlorine, ammonia, etc) is ﬁlled in atmosphere.

4)

Do not store in the environment where the capacitor is exposed in ozone, ultraviolet ray, or radiation.

Scrap of capacitors
For scraping the capacitor, please follow the guideline listed below.
a) Please make a hole in the capacitor or crush the capacitor before burning it.
b) If not, please ask waste-disposal specialist to take care of them, such as burying in the ground.

AEC-Q200 Compatibility
AEC("Automotive Electronics Council") is an organization for standardizing speciﬁcations for reliability testing andqualiﬁcation. AEC was established by automotive manufacturers and electronic component manufacturers inU.S. Testing data for qualiﬁcation compliant to AEC-Q200 (reliability testing standard for passive components) isavailable upon request.
For details, please contact us.
For important notice of using the aluminum electrolytic capacitors. we observe the guidelines of EIAJ
RCR-2367C "Safety Application Guide for ﬁxed aluminum electrolytic capacitors for use in electronic equipment".
Please read carefully the guideline for details.

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