Precautions for use

About Product Specifications

▪Our company's product specifications are a guarantee of the quality of the product itself. Please be sure to evaluate and confirm the installation status of this product after it is installed on your company's products.
▪Do not use our products without departing from the contents of our product specifications.

▪When used for products that place greater emphasis on safety

The company fully guarantees product quality, but is not foolproof of short circuits (or open circuits) caused by factors such as product life. It is recommended that when using equipment that may cause personal injury or other serious accidents such as transportation (trains, cars, traffic signals, etc.), medical, aerospace, electric heating products, combustion and gas, rotation, disaster prevention, and security, it is important to fully consider safety design through the following measures to ensure safety.

(1) Set up protective circuits and devices to ensure safer and more reliable system operation.

(2) Set redundant circuits, etc. to avoid system risks caused by a single fault.

▪About Using the Environment

▪This product provides general standard use for electronic equipment, and the use in the following special environments is not within the design scope. Therefore, when used in the following special environments, the performance of the capacitor may be affected. Please fully confirm the performance and reliability during use.

(1) Used in liquids such as water, oil, medicinal liquids, and organic solvents.

(2) Use in direct sunlight, outdoor exposure, and dust.

(3) It is used in environments with high levels of corrosive gases such as moisture (frost formation, water leakage, etc. at resistive locations), sea breeze, chlorine gas, hydrogen sulfide, ammonia, sulfur dioxide, nitrogen oxide, etc.

(4) Used in environments with strong electrostatic or electromagnetic waves.

(5) Installed around combustible materials such as heating parts or plastic wires.

(6) Resin sealing is used.

(7) When using solvent, water, or water-soluble detergent to clean the soldering flux after welding (pay special attention to water-soluble flux).

(8) Use in acidic or alkaline environments.

(9) Use in excessive vibration or shock environments.

▪Impulse voltage and transient voltage factors need to be considered.

In impulse voltage circuits, excessive transient application of ultra high voltage, or application of pulsed high voltage, attention should be paid to using within the rated voltage.

▪This product uses electrolyte.

Incorrect usage methods not only lead to rapid performance degradation, but also lead to electrolyte leakage and other damage to the circuit board and even damage to the terminal product.

Precautions for use (surface mount type)

1. When designing a circuit

After confirming the use environment and installation environment, design within the rated performance range according to the capacitance catalog or product specifications.

1.1 Operating temperature and frequency

Changes in temperature and frequency cause changes in the electrical characteristics of capacitors. Please consider the amount of change in circuit design.

(1) Temperature changes cause changes in the electrical performance of the capacitor.

At high temperatures: leakage current increases

At low temperature: electrostatic capacity decreases, tan6 and impedance increase

(2) Changes in electrical performance of capacitors caused by frequency changes

High frequency: reduced electrostatic capacity, increased tan6 and impedance

Low frequency: As the equivalent series resistance increases, the ripple current causes the heating to rise

1.2 Calculation of service temperature and service life

(1) The capacitor life is affected by the operating temperature. Generally speaking, if the temperature drops by 10Y, the lifetime will increase to about 2 times. Please use it at a temperature as low as possible compared to the maximum guaranteed temperature.

(2) Exceeding the usage temperature guarantee range may cause rapid deterioration or even damage to performance. The use temperature not only refers to the external and internal temperatures of the device, but also confirms the capacitance temperature when the heating elements (power semiconductors, resistors, etc.) inside the device radiate heat and the ripple current causes self heating. In addition, do not install a heater on the back of the capacitor.

(3) The acceleration formula for life is calculated as follows.

T1-T2 

L2=L1 pieces 2 10

L1: Life at temperature T1 Y (h)

L2: Life at temperature T2 Y (h)

T1: Classification upper limit temperature (Y)

T2: Ambient temperature+ripple current heating part for calculating life (Y)

(4) Please do not exceed the specified product life. Otherwise, it may cause rapid aging, short circuit, or pressure valve action, electrolyte leakage, and other damage. According to the environmental resistance of the rubber at the seal, the product life is expected to not exceed 15 years.

1.3 Load conditions for capacitors

If the following loads are applied to the capacitor, it may cause rapid aging or short circuit of the performance, and may also cause rapid heating or gas generation, resulting in an increase in internal pressure, which may lead to the action of the pressure valve and leakage of electrolyte at the sealing point. In severe cases, it may even lead to explosion or fire. Capacitor damage may also cause internal combustibles (electrolyte, component fixing materials, etc.) to splash outward.

(1) Polarity

Aluminum electrolytic capacitors have polarity.

Do not apply reverse voltage or AC voltage, and do not reverse the polarity during installation, otherwise it may cause circuit short circuit, or damage such as pressure valve action. Please confirm the polarity mark before use. In circuits with unstable and unclear polarity, please choose to use bipolar capacitors, but bipolar capacitors cannot be used in AC circuits either.

(2) Applied voltage

Do not apply overvoltage (voltage exceeding the rated voltage).

Please use the peak value when the ripple voltage (AC component) overlaps the DC voltage when it is lower than the rated voltage. Although there are provisions for surge voltages exceeding the rated voltage, the conditions are limited and are not a guarantee of long-term use.

(3) Ripple current

Do not use overcurrent (currents that exceed the rated ripple current).

Using excessive current can sometimes cause internal overheating, shortened service life, and damage such as pressure valve action. Even if it is used within the allowable range of ripple current values, it may result in an applied reverse voltage due to a low DC bias voltage. Please use it within the range of avoiding applying reverse voltage.

(4) Charging and discharging

Do not use general-purpose capacitors in circuits with rapid charging and discharging.

If you need capacitors for use in repeated rapid charging and discharging circuits, please contact us.

(5) On Off Circuit

Do not use this product in on-off circuits that frequently open and close more than 10000 times in a day.

If you need to use it in such a circuit, please be sure to inform us of the circuit conditions, etc.

(6) In series and parallel

[Parallel connection]

When capacitors are connected in parallel, sometimes the current balance between capacitors is disrupted, resulting in overcurrent flowing into some capacitors.

Please be sure to fully consider the wiring method to avoid overcurrent.

[Series connection]

When capacitors are connected in series, sometimes the voltage balance is disrupted, resulting in an applied overvoltage. To avoid damaging the voltage balance, fully consider the leakage current factor and connect the voltage dividing resistors in parallel to each capacitor.

(7) Capacitive insulation

▪The capacitance is completely isolated in a circuit between the following states.

▪External box and cathode terminal, anode terminal and circuit

▪Between self-supporting connectionless terminals (for strength reinforcement) and anode terminals, cathode terminals, and circuits

(8) Outer casing

Capacitor outer sleeve and outer thin plate are used for identification purposes, and electrical insulation functions are not guaranteed.

1.4 Design of installation position

Aluminum electrolytic capacitors use electrically conductive electrolyte and combustible electrolytic paper with combustible organic solvents as the main solvent. If the electrolyte leaks into the printed circuit board, it will corrode the circuit, cause a short circuit, and may cause smoke and fire. Please confirm the following contents for design.

(1) Dual sided circuit board

When capacitors are used on two sided circuit boards, do not wire directly below the capacitor mounting location

In addition, when conducting immersion welding on a through-hole circuit board with the capacitor sealing portion tightly attached to the circuit board surface, it may cause a short circuit between the anode terminal and the cathode terminal due to solder absorption.

(2) PCB perforation position

Solder is blown away through the through holes of the printed circuit board and subsequent installation components, which can cause damage to the capacitor outer sleeve. Please pay attention to the location of the holes during design.

(3) Hole pitch of circuit board

When designing a printed circuit board, open circuit board holes that are equally spaced apart from capacitor guides (terminals). If it is greater than or smaller than the capacitance guide (terminal) interval, the leakage current may increase, short circuit, broken wire, and electrolyte leakage may occur due to the stress on the lead wire when inserting the capacitance.

(4) Surface Mount

Surface mount pads are documented in the product specification. Please refer to the recommended circuit board pad size for circuit design.

(5) Capacitance with pressure valve

In order not to affect the action of the pressure valve, please reserve space on the upper part of the pressure valve.

In order not to affect the action of the pressure valve with the pressure valve capacitance on the outer box (within the overall dimensions indicated for each series), please preset the following intervals.

(6) Vent hole when the pressure valve operates

When there is a capacitive pressure valve on one side of the printed circuit, open a vent hole for the action of the pressure valve and match the position of the pressure valve.

(7) Avoid wiring and arranging circuits on the upper part of the pressure valve

Do not arrange circuits on the top of the pressure valve, especially for high voltage or high current circuit wiring. When the pressure valve acts, it will emit flammable and high-temperature gas exceeding 100Y, which may cause the gas to condense on the circuit and cause secondary disasters such as flames caused by the dissolution of the wiring sheath.

(8) Do not lay the circuit under the sealing part

When the electrolyte leaks, it may cause a short circuit in the circuit, resulting in Tracking or Migration.

2. About mounting

2.1 Preliminary knowledge before installation

(1) Do not reuse the assembled and powered capacitor.

(2) If there is a restart voltage on the capacitor, please discharge it through a resistor of about 1kQ.

(3) The leakage current of capacitors stored for a long time may increase, so a resistance of about 1kQ can be used for voltage processing.

(4) Do not let the capacitor fall to the ground. The mechanical or electrical parts of the capacitor may be damaged after falling to the ground. Do not use it.

(5) Do not use extrusion deformation capacitors. It may reduce the sealing performance of the capacitor, leading to deterioration in performance, reduced service life, electrolyte leakage, and other phenomena.

2.2 During installation

(1) Please confirm the rated capacity and voltage of the capacitor before installation.

(2) Please confirm the polarity of the capacitor before installation.

(3) Please confirm the capacitor terminal spacing, circuit board hole spacing, and pin size before installation.

If the spacing is different, it may cause stress inside the component through the terminals during insertion, causing adverse conditions such as short circuits.

(4) When fixing capacitors by an automatic mounting machine, please pay attention to the strength of the bent and fixed leads

When bending the lead wire to fix the capacitor on the substrate, if the edge of the bending part falls off and the space of the substrate is too narrow, the lead wire is easily stretched, and excessive tensile force can press onto the capacitor body, causing damage to the capacitor. When the applied voltage during mounting is too large, the chip type capacitor may have problems such as increased leakage, short circuit, wire breakage, and detachment from the substrate.

(5) When installing a self standing printed circuit board, press down on the capacitor as much as possible to make it close to the printed circuit board (do not float it).

2.3 Welding 1 (manual welding)

(1) Welding conditions (temperature, time) should be within the specified range of the product specification or within 350Y, 3 seconds.

(2) If the terminal spacing and the circuit board hole spacing do not match, and it is necessary to process the lead terminals, please note that the processing should be carried out without applying stress to the capacitor body before welding.

(3) When using soldering iron for manual trimming, when it is necessary to remove the soldered capacitor again, care should be taken not to apply stress to the capacitor terminals, and manual trimming should be carried out after the solder is fully dissolved.

(4) Be careful not to touch the capacitor body with the tip of the soldering iron, which may cause damage such as holes in the outer packaging sleeve.

2.4 Welding 2 (immersion welding)

(1) Do not immerse the capacitor body in solder, as the heat of solder can cause the internal pressure of the capacitor to rise, leading to damage.

(2) Welding conditions (temperature, time) shall be within the range specified in the product specification.

(3) Please avoid touching capacitors with other dumped parts during welding. During welding, high thermal conductivity components such as resistors and ceramic capacitors topple over and come into contact with their lead terminals, metal terminals, and metal parts, resulting in local thermal stress, which can cause damage to the outer sleeve, forming the same state as when other circuits are short-circuited.

(4) Please avoid solder residue except for the terminal section.

2.5 Welding 3 (Reflow Welding)

(1) Surface mount capacitors are special components for reflow soldering. For reflow soldering, please use full hot air heat transfer methods such as infrared hot air, and do not use VPS (vapor heat transfer method) Cannot be used for immersion welding or immersion welding

(2) Welding conditions (pre heating/solder joint temperature/time) should be within the range specified in the product specification.

(3) Reflow soldering is limited to one time only. Please be sure to contact us if you need to do so twice.

(4) Do not reuse the attached capacitor after removal.

(5) Heat such as reflow soldering may cause cracks in the printed words such as the cathode identification part, but it does not affect product reliability. Please understand.

(6) When using VPS, the temperature rises sharply, which may lead to problems such as changes in characteristics or appearance.

The recommended temperature condition is below 3Y/sec. Please contact our company for detailed conditions

(7) Φ6.3 The shockproof product is constructed with auxiliary terminals covering the side of the seat plate.

If image recognition is to be used to confirm the formation of the side solder corner of the auxiliary terminal, it is necessary to discuss in advance the solder conditions that can fully form the solder leg. If it is not possible to confirm that there are sufficient welding corners on the auxiliary terminal, the welding of the bottom surface of the auxiliary terminal and the circuit board can ensure shock resistance without affecting the reliability of the product.

2.6 Welding 4 (Others)

When the temperature is abnormally high due to pre heating of the chip and hardening of the fixing resin, it can lead to shrinkage and cracking of the capacitor outer sleeve. When superheating and hardening the furnace, please set the temperature below 150Y (including 150Y) for less than 2 minutes.

2.7 Treatment after welding

(1) After soldering the capacitor to the printed circuit board, do not tilt, tip, or twist the capacitor body. The torque generated with the periphery as the fulcrum may cause capacitive damage to the interior of the component through the terminals.

(2) After the capacitor is soldered to the printed circuit board, do not lift the capacitor to move the circuit board. The dead weight of the circuit board passing through the terminals can create pressure on the inside of the component, causing damage to the capacitor.

(3) After soldering the capacitor to the printed circuit board, please avoid collision between the capacitor and other objects. In addition, when overlaying the circuit board, avoid contact between the capacitor and the printed circuit board or other components on the printed circuit board.

2.8 Cleaning the circuit board

(1) After connecting, please clean the circuit board according to the following conditions.

Temperature: below 60Y, time: within 5 minutes (ultrasound can be used), but it must be fully watered and dried (within 100Y, 20 minutes)

[Applicable solvent]

ST-100S Advanced Ethanol Cleaning Agent/750H, 750L, 710M Interface Active Agent Cleaning Agent/210SEP Alkaline Saponification Cleaning Agent/B-12 Advanced Ethanol Cleaning Agent/CW-5790 Cleaning Agent/Process Cleaning Agent 219/Petroleum and Interface Active Agent Mixed Cleaning Agent P3-375/EC-7R Hydrocarbon Cleaning Agent

Detergent/Advanced Process Protection Ethanol Detergent FRw-17, FRw-1, FRV-1

Note 1: If you need to use cleaning agents other than the above solvents, please contact us in advance.

2: To protect the Earth's environment, do not use cleaning agents that damage the Earth's ozone layer.

3: The product identification may be blurred or disappear due to different cleaning methods.

(2) Unless otherwise specified in the product specification, do not use the following solvents to clean the capacitor.

(a) Halogen based solvents: cause internal corrosion of capacitors

The cleaning agent will penetrate (diffuse) into the inside of the capacitor, causing a decomposition reaction of the cleaning agent. Free chloride ions may react chemically with aluminum to corrode the capacitor. Capacitors that are allowed to be cleaned with cleaning agent should be cleaned within the allowable range of cleaning agent and cleaning conditions (temperature, time, etc.) specified in the specification.

(b) Alkaline solvent: corrosion aluminum box (dissolution)

(c) Dimethylbenzene: causes aging of sealing rubber

(d) Egg C: The logo disappears

(3) After cleaning the circuit board, force it to dry immediately to avoid residual cleaning agent between the capacitor sealing part and the circuit board.

(4) Strictly manage whether the cleaning agent is contaminated (conductivity, PH, specific gravity, moisture, etc.).

If the cleaning agent is contaminated, it may increase the concentration of chlorine gas, causing internal corrosion of the capacitor. Please control the concentration of flux in the cleaning agent within 2% wt.

2.9 Fixed adhesive, coating agent

(1) When using adhesives or coating agents for the purpose of fixing capacitors and preventing moisture on circuit boards, certain solvents contained in the materials may corrode the capacitors. Please choose an adhesive or coating agent that does not contain halogen compounds. In addition, when using polymers, please avoid chloroprene baking.

(2) When using adhesives and coating agents for capacitors, please confirm the following.

(a) When fixing or coating, there should be no flux residue or dirt left between the circuit board and the capacitor sealing part.

(b) When hardening or drying adhesive and coating agent, do not leave any residual solvent.

Please do not seal all around the capacitor seal. (More than 1/3 of the space is vacated)

2.10 Fumigation treatment

When exporting electronic equipment equipped with aluminum electrolytic capacitors overseas, the wooden packaging materials may be fumigated with halogenated compounds such as methyl bromide. If the drying after treatment is not sufficient, the packaging materials may release residual halogenated compounds during transportation, which may seep into the interior of the capacitors and cause corrosion reactions.

After fumigation, please dry thoroughly to avoid residual halogen compounds. In addition, do not perform fumigation treatment after the entire packaging of electronic equipment.

Precautions for use on terminal products (Set)

(1) This product is designed for general standard use and is not designed for the following special environments. Therefore, using in the following special environments may have an impact on the performance of the capacitor. Please confirm the performance and reliability of the product when using it.

(a) Direct contact of capacitors with water, salt water, and oil

(b) Expose the capacitor directly to sunlight

(c) An environment where condensation occurs on the capacitor surface under high temperature and humidity conditions

(d) Environments where capacitors come into contact with various active gases (e) Environments with acids or bases

(f) Environment with high frequency induction

(g) Excessive vibration or shock environment

(2) When using silicon materials containing a large amount of low molecular weight silicon oxide near the capacitor, it may cause abnormal capacitance performance.

(3) Do not touch the capacitor terminals directly.

In integrated use, contact with capacitive terminals can cause electric shock. The exposed parts of the aluminum box such as the pressure valve portion of the capacitor are not insulated, so do not directly touch the terminals.

(4) Do not use electrical conductors to short circuit capacitor terminals. Do not pour acid, alkali solution, or other conductive liquids onto the capacitor. It may cause abnormalities such as circuit short circuits, which may lead to capacitor damage.

4. Precautions for point inspection and maintenance

(1) When using capacitors in industrial equipment, please conduct regular spot checks. When performing capacitor spot checks and maintenance, first cut off the integrated power supply and discharge the electrical energy stored in the capacitor. At this time, do not stress the lead terminals, etc.

(2) The regular spot check items include the following.

(a) Pay attention to whether there are obvious abnormalities in the appearance (deformation, liquid leakage, etc.)

(b) Electrical performance (specified items in product catalogs or product specifications)

If any abnormality is confirmed in the above content, please confirm the capacitance specification, replace it, and handle it properly.

5. In case of any emergency

(1) Capacitors above a certain size are equipped with pressure valves to avoid abnormal pressure.

If the capacitive pressure valve acts and gas sprays out during use on the terminal product (Set), please cut off the integrated power supply or unplug the power cord plug from the socket. If the power supply is not cut off, it may cause a capacitor short circuit that may damage the circuit, or the vaporized gas may re liquefy and short circuit the circuit. In extreme cases, it may lead to secondary disasters such as integrated damage.

The gas entering and exiting the capacitive pressure valve is a sublimated gas of the electrolyte, not smoke.

(2) When the capacitive pressure valve operates, there may be gas with a high temperature of over 100Y degrees ejected. Please keep your face away.

In case the incoming and outgoing gases enter the eyes or are inhaled into the body, please immediately rinse the eyes with clean water or rinse your mouth. In case of contact with skin, wash immediately with soap.

6. Save and place

(1) The leakage current of the capacitor tends to increase after being placed for a long time. This is caused by aging of the oxide film under no load. Although the applied voltage will decrease somewhat, when it is first used, there will be a large film covering repair current flowing through, and a large leakage current may be the main cause of circuit abnormalities.

The validity period of the product is 42 months from the date of shipment inspection, and 12 months beyond the following table.

Please choose a place with normal temperature (5Y~35Y) and normal humidity (45%~85%) without direct sunlight for storage conditions.

(2) Save Environment

Do not use and store outside the environmental range specified in the product specification or in the following environments.

(a) Classification upper or lower limit temperature exceeded

(b) Environments in direct contact with water, salt water, or oil

(c) Environment where water may condense

(d) Environments filled with toxic gases (hydrogen sulfide, sulfite, nitrite, chlorine and its compounds, desmodine and its compounds, ammonia, etc.) (e) Ozone, environments with radiation and ultraviolet radiation

(f) Environments where vibrations or shocks are generated outside the specified range

7. Waste treatment

The following methods can be used to dispose of waste capacitors.

(1) Open a hole in the capacitor, or crush the capacitor and burn it at high temperature (above 800Y). Direct combustion can cause capacitance explosions.

(2) If combustion treatment is not used, please entrust a professional industrial waste treatment factory for waste treatment.