●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact NEC TOKIN for updated product data.

●Please request for a specification sheet for detailed product data prior to the purchase.

●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.

2010.11.8 9565SCAVOL12E

Super Capacitors Vol.12 5

2. Performance for Selection

3. Characteristics of Super Capacitor

Super Capacitor can not be used for applications in AC circuit such as ripple absorption because it has high internal resistance

(several hundred mΩ to a hundred Ω) compared to aluminum electrolysis capacitor. Thus its main use would be similar to that

of secondary battery such as power back-up in DC circuit. The following list shows the characteristics of Super Capacitors as

compared to aluminum electrolyses capacitors for power back-up and secondary batteries.

Secondary battery

Capacitor

NiCd battery

Lithium ion battery

Aluminum electrolysis capacito

Super Capacitor

Back-up ability

◎◎△○

Eco-hazard

Cd

−−−−−−−−−

Operating temperature range

−

20 to 60 ℃−20 to 50 ℃−55 to 105 ℃−40 to 85 ℃（FR，FT）

Charge time

few hours

few hours

few minutes

few minutes

Charge/discharge life time

approx. 500 times

approx. 500 to 1000 times

limitless (*1)

limitless (*1)

Restrictions on charge/discharge

yes

yes

none

none

Flow soldering

not applicable

not applicable

applicable

applicable

Automatic mounting

not applicable

not applicable

applicable

applicable (FM and FC series)

Safety risks

leakage, explosion

leakage, combustion, explosion, ignition

heat-up, explosion

gas emission (*2)

(*1) Aluminum electrolysis capacitor and Super Capacitor has limited lifetime. However, when used under proper conditions, both can operate

sufficiently within the designed lifetime of the set they are built in.

(*2) There is no harm as it is a mere leak of water vapor which transitioned from water contained in the electrolyte (diluted sulfuric acid).

However, application of abnormal voltage surge exceeding maximum operating voltage may result in leakage and explosion.

Backup time depends on capacitance

1 minute

Backup time

0.01

0.1

1

10

kA

A

mA

A

1 hour

1 day 1 week

1 month

( sec )

High power

SuperCapacitor

BOX type

Low impedance application use

FA, FE, FS, FT, FM Series

High impedance application use

FG, FY, FC, FM, FR Series

High power

SuperCapacitor

HV Series

μ