Application Notice
Precautions for Your Safety:
YEC's Ultracapacitors contain flammable organic solvents. For your safety, please ensure that operational and mounting follow the following specification sheet and prohibitions.
Circuit Design !
1. Lifetime
UltraCapacitors have a longer lifetime than do secondary batteries, but their lifetime is still limited. The lifetime of ultracapacitor is greatly affected by ambient temperature, applied voltage and operation current. Reducing these parameters will lengthen the lifetime of ultra capacitor.
2. Do not charge exceed its rated voltage and current
If the ultracapacitor is used at voltage and current exceeding its rated voltage, the life of ultra- capacitor may be shortened. Doing so may generate gas inside the capacitor, resulting swelling, catching fire, heat generation or bursting.
3. Do not reverse placement of (+) and (-)
The ultracapacitors have polarity. ?Be sure to verify the polarity of the capacitor before using.
If the (+) and (-) side of the capacitor is reverse inserted, it may cause a short-circuiting or over discharge of the capacitor on some equipment and it may induce overheating, explosion or fire.
4. Ambient Temperature
The lifetime of ultracapacitor is affected by operating temperature. In General, decreasing the ambient temperature by 10°C will double the lifetime of ultracapacitor. It is recommended to use the ultracapacitor at the lowest temperature to decrease ESR increase.
5. Ripple Current
Ultracapacitors have higher internal resistance than aluminum electrolytic capacitors and are more susceptible to internal heat generation when exposed to ripple current. Heat generating leads gas generation and raising internal resistance and reduced lifetime.
6. Do not solder directly to the capacitor
If soldering is performed directly to the capacitor, (Excessive heat may cause deterioration of the electrical characteristics of the ultracapacitor), the capacitor is heated up, consequently cause leakage, explosion or fire due to overheating from internal short-circuiting.
7. Do not use new and used capacitors together. Do not use different types of capacitors together.
It may cause catching fire, heat generation, leakage or bursting.
Caution !
1. Keep capacitors away from direct sunlight, high temperature and humidity.
It may cause heat generation or performance deterioration.
2. Do not heat, disassemble nor dispose of in fire
Doing so damages the insulation materials and may cause catching fire, heat generation, leakage or bursting.
3. Incase of leakage or a strange-smell, keep away from fire to prevent ignition of any leaked electrolyte.
4. If leaked liquid gets in the eyes, wash them with clean water and consult a physician immediately.
5. Keep capacitors out of childrenˇ¦s reach.
If leaked liquid is ingested or a capacitor is swallowed, consult a physician immediately.
Attention !
1. If you connect two or more capacitors in series or parallel, please consult us in advance.
It may cause bursting or catching fire due unbalanced load or voltage.
2. Our sales and technical staff are available to assist you in sizing your systemˇ¦s requirements exactly.
3. If you plan to use a higher charge current or higher voltage than specified, please contact our sales and technical staff. |
