1. Circuit Design
(1) Please ensure that conditions of use and installation of capacitors in this catalog within the specified range.
(2) Operating temperature and applied ripple shall the provisions of this catalog within the
(3) in the design of the circuit should be selected meet the requirements of the product life
(4) aluminum electrolytic capacitors are polarized, no reverse voltage or AC voltage, reverse voltage of the circuit may occur. Please choose polarity capacitor
(5) on the need to quickly charge and discharge circuit, did not recommend the use of electrolytic capacitors should be chosen specially designed capacitor has a longer life.
(6) should not impose overload voltage.
① DC voltage overlapped with ripple current and voltage peak voltage should not exceed the rated voltage.
② If two or more vessels in series, should ensure that the applied voltage is lower than the rating, but also to strike a balance resistor in parallel. So that each capacitor voltage is equal to the increase.
(7) capacitors can not guarantee insulation casing, the casing on the capacitor can not be used for insulation. If insulation requirements, please contact our sales department.
(8) capacitors can not be in the following situations
① a. capacitor should not be exposed to water (including concentrates) brine or oil.
b. use of the environment in hydrogen sulfide, sulfuric acid, nitrous acid, chlorine, ammonia and other toxic gases
c. use of ambient, ozone. UV and radiation.
② severe vibration and mechanical shock than the specifications in this catalog range
Vibration test conditions are as follows;
Vibration frequency range: 10 ~ 55 ~ 10Hz
Vibration cycle range: 10 ~ 55 ~ 10Hz / min.
Vibration cycle approach: The number of
Amplitude or acceleration: 1.5mm (maximum acceleration 10G)
Vibration direction: x. y. z direction
Test time: 2 hours each direction
Impact generally does not apply.
If special requirements. Please contact us!
(9) designing a circuit board. Should note the following:
① PC board solder joints to ensure selection of the capacitor lead spacing and line spacing
② If there should be any safety vent line. And should stay out of more than 2mm gap.
(10) The main chemical solution and the electrolytic paper is combustible. And electrolyte conductivity. When it comes in contact with the PC board. May be corrosion of the line PC board. Or cause short circuits. Resulting in smoking or fire. So , sealing the capacitor should not have any lines below.
(11) Design circuit board support or opposition should ensure that the heating elements are not close to the aluminum electrolytic capacitor or a PC board on the other hand (capacitors below).
(12), circuit board design should take into account the frequency of the electrical properties change with temperature changes.
(13) When two or more capacitors in parallel, taking into account the balance of current through the capacitor.
2. Installation
(1) Once installed and load capacitors, do not use the other circuit board.
(2) As often the reverse electromotive force may exist between positive and negative voltage, so please 1kΩ discharge resistance.
(3) The longer the storage capacitor, leakage current may be increased, if the leakage current increases, use the 1kΩ resistor do charge handling.
(4) Check the capacitors installed in the PC board before, to confirm its specifications and polarity.
(5) The welding conditions should be recognized in the provisions of this catalog range. Installation careful not to damage capacitors.
(6) Before installation, make sure that capacitor leads and PC board solder joints should be in line spacing.
(7) Note that the SMT nozzle, product testing or the installation of the capacitor's current balance.
(8) Reflow Soldering:
① Preheat: 160 ℃ lower than the maximum of 120 seconds. Reflow when the capacitor at the top of the maximum temperature: 240 ℃ capacitor top temperature exceeds 240 ℃ Time: up to 30 seconds. Preheated to reflow the maximum temperature from the time needed with The maximum temperature varies.
② When using infrared heating, please refer to the extent of heating, this is because the infrared absorption of the color with the capacitor. Casing materials have different size capacitors
(9) capacitors soldered to PC board line, do not tilt or twist the capacitor.
(10) Do not seize the PC board capacitor soldered PC board moving
(11) Please do not allow anything after soldering contacts with the capacitor, such as PC board stacking storage. Make sure that the PC boards and other components do not touch the capacitor.
(12) Cleaning:
① not wash capacitor with halogenated cleaning agent
② Recommended Cleaning Method:
Use: any type and size.
Cleaner: Pine-Alpha, ST-100s. Clean Through 750H/750L/710M, sanelek13-12, Aqua cleaner 210SEP.
Techno Care FRW14-17.Slopwork 1 Alco
Cleaning method: immersion, ultrasonic or other means the total cleaning time should be within 5 minutes, cleaning solvents, the temperature should be 60 ℃ or below. Laundered, capacitors should be used together with the board at least 10 minutes to hot air drying.
③ avoid the use of ozone-depleting cleaning agents to protect the environment.
3. Installation
(1) Do not directly touch terminal.
(2) Do not short between terminals connected with the conductor, do not splash around in the capacitor or withdrawal of conductive liquids, such as acids, alkali solutions, etc..
(3) use of the environment to avoid splashes of water or oil, direct sunlight, ultraviolet radiation, radiation, toxic gases, vibration or mechanical shock.
4. Maintenance and inspection:
Please periodically inspect the installation of capacitors in industrial equipment, inspection as follows:
Appearance: No obvious defects. Such as vent, leakage and so on.
Electrical properties: electrical capacity. Loss tangent values. Leakage current. Specifically refer to the company's directory data.
