EEV-FK0J471GP Datasheet, PDF (21/22 Pages) List of Unclassifed Manufacturers – Aluminum Electrolytic Capacitor

Electrolytic Capacitor Product Specification
CE-VFK-BE-33
Application Guidelines
19
2 Capacitor Handling Techniques
2.1 Considerations Before Using
(1) Capacitors have a finite life. Do not reuse or recycle capacitors from used equipment
(2) Transient recovery voltage may be generated in the capacitor due to dielectric absorption. If required, this voltage can
be discharged with a resistor with a value of about 1kΩ.
(3) Capacitors stored for a long period of time may exhibit an increase in leakage current. This can be corrected by
gradually applying rated voltage in series with a resistor of approximately 1kΩ.
(4) If capacitors are dropped, they can be damaged mechanically or electrically. Avoid using dropped capacitors.
(5) Dented or crushed capacitors should not be used. The seal integrity can be damaged and loss of electrolyte /
shortened life can result.
2.2 Capacitor Insertion
(1) Verify the correct capacitance and rated voltage of the capacitor.
(2) Verify the correct polarity of the capacitor before insertion.
(3) Verify the correct hole spacing and land pattern size before insertion to avoid stress on the terminals.
(4) For chip type capacitors, excessive mounting pressure can cause high leakage current, short circuit, or disconnection.
2.3 Manual Soldering
(1) Observe temperature and time soldering specifications or do not exceed temperatures of 350 ﾟ C for 3 seconds or less.
(2) If a soldered capacitor must be removed and reinserted, avoid excessive stress on the capacitor leads.
(3) Avoid physical contacts between the tip of the soldering iron and capacitors to prevent or capacitor failure.
2.4 Reflow Soldering
(1) For reflow, use a thermal conduction system such as infrared radiation (IR) or hot blast.
Vapor heat transfer systems (VPS) are not recommended.
(2) Observe proper soldering conditions (temperature, time, etc.). Do not exceed the specified limits.
(3) Reflow should be performed one time. Consult us for additional reflow restrictions.
250
200
Below
160℃
150
100
50
120 sec
5 sec
Peak
temperature
Duration
(temp≧200ﾟC(S))
Peak temperature / Duration (temp≧200ﾟC(S))
240
230
220
210
Time (S)
0 10 20 30 40 50 60
Duration (temp≧200ﾟC(S))
※ The Temperature on Capacitor top shall be measured by using thermal couple that is fixed firmly by epoxy glue.
2.5 Capacitor Handling after Soldering
(1) Avoid moving the capacitor after soldering to prevent excessive stress on the lead wires where they enter the seal.
(2) Do not use the capacitor as a handle when moving the circuit board assembly.
(3) Avoid striking the capacitor after assembly to prevent failure due to excessive shock.
2.6 Circuit Board Cleaning
(1) Circuit boards can be immersed or ultrasonically cleaned using suitable cleaning solvents for up to 5 minutes and up to
60 ﾟ C maximum temperatures. The boards should be thoroughly rinsed and dried.
The use of ozone depleting cleaning agents is not recommended for the purpose of protecting our environment.
(2) Avoid using the following solvent groups unless specifically allowed for in the specification;
ï½¥ Halogenated cleaning solvents : except for solvent resistant capacitor types, halogenated solvents can permeate the
seal and cause internal capacitor corrosion and failure. For solvent resistant capacitors, carefully follow the temperature
and time requirements based on the specification. 1-1-1 trichloroethane should never be used on any aluminum electrolytic
capacitor.
ï½¥ Alkaline solvents
: could react and dissolve the aluminum case.
ï½¥ Petroleum based solvents : deterioration of the rubber seal could result.
ï½¥ Xylene
: deterioration of the rubber seal could result.
ï½¥ Acetone
: removal of the ink markings on the vinyl sleeve could result.
(3) A thorough drying after cleaning is required to remove residual cleaning solvents that may be trapped between the
capacitor and the circuit board. Avoid drying temperatures, which exceed the upper category temperature of the capacitor.
Matsushita Electronic Components Co.,Ltd.　LCR Device Company
Capacitor Business Unit