Clean Through 750H, 750K, 750L and 710M (Kao) Technocare FRW-14 through 17 (Toshiba) Cleaning conditions:
Using these cleaning agents, capacitors are capable of withstanding immersion or ultrasonic cleaning for 10 minutes at a maximum liquid temperature of 60℃. Find optimum condition for washing, rinsing and drying. Be sure not to rub the marking off the capacitor by contacting any other components or the PC board. Note that shower cleaning adversely affects the markings on the sleeve.
–Non-Halogenated Solvent Cleaning
AK225AES (Asahi Glass)
Cleaning Conditions:
Solvent-proof capacitors are capable of withstanding any one of immersion, ultrasonic or vapor cleaning for 5 minutes, except some series, the cleaning duration of which is specified by product specifications. However, from a view of the global environmental problems, these types of solvent will be banned in near future. We would recommended not using them as much as possible.
Isopropyl alcohol cleaning agents IPA (Isopropyl Alcohol) is one of the most acceptable cleaning agents; it is necessary to maintain a flux content in the cleaning liquid at a maximum limit of 2 Wt.%.
(5) Precautions for using adhesives and coating materials a) Do not use any adhesive and coating materials containing halogenated solvent.
b) Verify the following before using adhesive and coating materials. ·Remove flux and dust leftover between the rubber seal and the PC board before applying adhesive or coating materials to the capacitor.
·Dry and remove any residual cleaning agents before applying adhesive and coating materials to the capacitors. Do not cover over the whole surface of the rubber seal with the adhesive or coating materials.
·On permissible heat conditions for curing adhesives or coating materials, follow the instructions in the catalogs or the product specifications of the capacitors.
·Covering over the whole surface of the capacitor rubber seal with resin may result in a hazardous condition because the pressure inside cannot be released completely. Also, a large amount of halogen ions in resins will cause the capacitors to fail because the halogen ions penetrate into the rubber seal and the inside of the capacitor.
c) Some of coating material cannot be cured over the capacitor. (6) Fumigation
In many cases when exporting or importing electronic devices, such as capacitors, wooden packaging is used. In order to control insects, many times, it becomes necessary to fumigate the shipments. Precautions during "Fumigation" using halogenated chemical such as Methyl Bromide must be taken. Halogen gas can penetrate packaging materials used, such as cardboard boxes and vinyl bags. Penetration of the halogenide gas can cause corrosion of electrolytic capacitors.
The Operation of Devices
a) Do not touch a capacitor directly with bare hands.
b) Do not short-circuit the terminals of a capacitor by letting it Also, do not spill electric-conductive liquid such as acid or alkaline solution over the capacitor.
c) Do not use capacitors in circumstance where they would be subject to exposure to the following materials exist or expose.
·Oil, water, salty water or damp location.
·Direct sunlight.
·Toxic gases such as hydrogen sulfide, sulfurous acid, nitrous acid, chlorine or its compounds and ammonium.
·Ozone, ultraviolet rays or radiation.
·Severe vibration or mechanical shock conditions beyond the limits prescribed in the catalogs or product specification.
Maintenance Inspection
a) Make periodic inspections of capacitors that have been used in industrial applications. Before inspection, turn off the power supply and carefully discharge the electricity in the capacitors. Verify the polarity when measuring the capacitors with a volt- ohm meter. Also, do not apply any mechanical stress to the terminals of the capacitors.
b) The following items should be checked during the periodic
inspections.
·Significant damage in appearance: venting and electrolyte
leakage.
·Electrical characteristics: leakage current, capacitance, tanδ and other characteristics prescribed in the catalogs or product specifications.
We recommend relacing the capacitors if the parts are out of specification.
In Case of Venting
a) If a non-solid aluminum electrolytic capacitor expells gas when venting, it will discharge odors or smoke, or burn in the case of a short-circuit failure. Immediately turn off or unplug the main power supply of the device.
b) When venting, a non-solid aluminum electrolytic capacitor blows out gas with a temperature of over 100℃. (A solid aluminum electrolytic capacitor discharges decomposition gas or burning gas while the outer resin case is burning.) Never expose the face close to a venting capacitor. If your eyes should inadvertently become exposed to the spouting gas or you inhale it, immediately flush the open eyes with large amounts of water and gargle with water respectively. If electrolyte is on the skin, wash the electrolyte away from the skin with soap and plenty of water. Do not lick the electrolyte of non-solid aluminum electrolytic capacitors.
Storage
We recommend the following conditions for storage.
a) Do not store capacitors at a high temperature or in high humidity. Store the capacitors indoors at a temperature of 5 to 35℃ and a humidity of less than 75% RH.
b) Store the capacitors in places free from water, oil or salt water.
c) Store the capacitors in places free from toxic gasses (hydrogen sulfide, sulfurous acid, chlorine, ammonium etc.)
d) Store the capacitors in places free from ozone, ultraviolet rays or radiation.
e) Keep capacitors in the original package.
Disposal
Please consult a local specialist regarding the disposal of industrial waste when disposing aluminum electrolytic capacitors.