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snap-in type Aluminum electrolytic capacitor

Writer:sunny yangSource:capsun Date:2012-12-12 10:03

Aluminum electrolytic capacitors ('capacitors') may cause explosion, fire, or other serious hazard if used outside the specified
operating conditions. Please familiarize yourself with the instructions below before using these capacitors
On-board self-supporting (snap-in type) capacitors
1,Do not connect the blank terminal (reinforced terminal) of multi-terminal (3-, 4-) snap mount capacitors, as this could cause a short circuit.
2,Use a completely isolated circuit between the case and the electrode terminal, and between the case and the circuit pattern
3,Exterior sleeves are for labeling purposes, not for insulation. Consult us if you need insulation
4,Failure to tightly solder the capacitor to the PCB may result in one of its terminals breaking or its pattern peeling off due to vibration. Insert the capacitor snugly and correctly into the designated holes in the PCB, then solder it.
5,If it becomes necessary to process a lead wire terminal due to mismatching of the space between the terminals to the holes in the PCB, be sure to melt the solder thoroughly so the capacitor isn't subjected to stress
6,Flux on the rubber seal may result in corrosion. Do not let flux stick to any part other than the terminals
7,Solder at 260°C for not more than 10 seconds or at 350°C for not more than 3 seconds. Exceeding these specifications may result in a decline in electrical performance, leading to trouble. Do not let the tip of the soldering iron come in contact with the capacitor body
8,If it becomes necessary to remove a capacitor after soldering, melt the solder with a soldering iron to avoid subjecting the terminals to stress
9,For cleaning flux, we recommend an aqueous or higher alcohol detergent or isopropyl alcohol. The recommended concentration of flux with regard to the cleaning agent is 2wt% or less. Excessively high flux concentration may cause corrosion due to halide.For use of other cleaning agents, consult us
10,If you must clean the capacitor with halogen solvents, etc., we recommend that you use washable capacitors. Make sure that the cleaning conditions are within those stipulated in the specifications, and measure the cleaning agent for conductivity, pH,specific gravity and moisture content for contamination control. After cleaning, thoroughly dry the capacitors together with PCBs.Do not store the capacitors in the same atmosphere as the cleaning agent or in a sealed container. For details on washable capacitors, consult us
11, Some cutting oils contribute to swelling of rubber, with the risk of corrosion and a decline in air-tightness. If the rubber surface will be exposed to cutting oils, use washable capacitors as in 10 above.
12,Thoroughly remove all traces of the cleaning agent from the capacitor. Even when not cleaning the flux, dry the flux itself.Cleaning agent or flux residue may cause the halide to penetrate the rubber seal, leading to corrosion
13,When fixing a PCB and capacitor with a coating agent or fixative, use a substance completely free of halide compounds.Thoroughly dry the flux or detergent before applying the coating. Do not let the coating block the entire surface of the seal. Any halide compound present in the coating may lead to corrosion.
14,When installing the safety vent of the capacitor against the PCB, drill a gas bleeder hole to allow the gas to escape when the vent is activated. If the diffusion of gas is hindered while the pressure valve is in operation, the internal pressure can rise, with danger of explosion, fire or other serious failure.
15,Do not twist or otherwise physically move the capacitor after soldering it to the PCB. Do not take hold of the capacitor to move a PCB either, as this may deform the terminal or decrease its air tightness.
16,Do not apply physical impact to the capacitor (striking, etc.) after it is soldered to a PCB. When stacking PCBs, make sure that the capacitors don't contact PCBs or other components.
17,Do not solder a capacitor by dipping in a solder bath. Solder only on the terminal side of the capacitor, via a PCB

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Keywords for the information:DC  circuit polarity non-polar capacitors AC applications 

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