Information

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Design and specifi cations are subject to change without notice. Ask factory for technical specifi cations before purchase and/or use.
Whenever a doubt about safety arises from this product, please contact us immediately for technical consultation.
Gold Capacitors Technical Guide
Principles and Operation of Gold Capacitors
The area of activated carbon is approximately 2500 cm
2
/gram and the thickness of a double layer is less than a
molecule. From this, it can be readily seen that the capacitance of an electric or double layer capacitor is several
times greater than of an aluminum electrolytic capacitor.
The internal resistance of an electric double layer capacitor is quite high compared to an aluminum electrolytic
capacitor and, therefore, it should not be used as a fi lter in an AC circuit. These devices are specifi cally designed for
energy back-up applications and secondary power sources.
Wide Range of Models for a Variety of Applications
Panasonic offers a wide range of Gold capacitors. The coin type Gold Capacitors are primarily used as real time
clock back-up, while the radial types can handle large currents.
As a Secondary Source with Long Life
Gold Capacitors are as durable as Aluminum Electrolytic Capacitors. In fact, when it is used under proper conditions,
(refer to “the Life” in details), they are as durable as the equipment itself. Therefore, there is no need to replace the
battery. It is also worth noting that there are many international regulations for batteries. This makes Gold Capacitors
a better choice.
Wide Operating Temperature Range
Batteries tend to lose much of their energy when exposed to heat and are susceptible to leakage when exposed
to low temperatures (e.g. below 0
o
C). Gold capacitors are suitable where the operating temperature conditions are
taken into consideration, such as in car stereos, etc.
No Need of Charge Control
Ni-Cd batteries generate heat in over-charged and discharged conditions, which shortens its life, creating a need for
a charge control circuit. Gold Capacitors have no limit on charging and discharging and do not need a charge control
circuit.
Speed Charge, Repeated Charge/Discharge Cycles
Speed charge is possible for Gold Capacitors. Repeated rapid charge and discharge cycles are acceptable because
there is no internal chemical reaction like a battery. Gold Capacitors are ideally suited for circuits that have shorts
repetitive charging and discharging time, and can not take long charging times.
Good for the Environment as a Secondary Source
There are no toxic materials such as cadmium or mercury in Gold Capacitors. Europe has recently restricted the use
of products containing toxic materials due to pollution. Solar watches use our Gold capacitors and are very popular
with clean energy initiatives in Europe. Thus, Gold Capacitors are well suited for use in Europe and America where
these restrictions apply.