3

© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 • 864-963-6300 • www.kemet.com

S6012_FM • 10/5/2016

Supercapacitors – FM Series

Performance Characteristics

Supercapacitorsshouldnotbeusedforapplicationssuchasrippleabsorptionbecauseoftheirhighinternalresistance

(severalhundredmΩtoahundredΩ)comparedtoaluminumelectrolyticcapacitors.Thus,itsmainusewouldbe

similartothatofsecondarybatterysuchaspowerback-upinDCcircuit.Thefollowinglistshowsthecharacteristicsof

supercapacitorsascomparedtoaluminumelectrolyticcapacitorsforpowerback-upandsecondarybatteries.

Secondary Battery

Capacitor

NiCd

Lithium Ion

AluminumElectrolytic

Supercapacitor

Back-upability

–

–

–

–

Eco-hazard

Cd

–

–

–

Operating Temperature Range

−20to+60°C

−20to+50°C

−55to+105°C

−40to+85°C(FR,FT)

Charge Time

few hours

few hours

few seconds

few seconds

Charge/Discharge Life Time approximately500times approximately500to1,000

times

limitless(*1)

limitless(*1)

Restrictions on

Charge/Discharge

yes

yes

none

none

Flow Soldering

notapplicable

notapplicable

applicable

applicable

AutomaticMounting

notapplicable

notapplicable

applicable

applicable

(FMandFCseries)

SafetyRisks

leakage, explosion

leakage,combustion,

explosion, ignition

heat-up, explosion

gasemission(*2)

(*1) Aluminum electrolytic capacitors and supercapacitors have limited lifetime. However, when used under proper conditions, both can operate within a

predetermined lifetime.

(*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.

Typical Applications

Intended Use (Guideline) Power Supply (Guideline)

Application

Examples of Equipment

Series

Longtimeback-up

500μAandbelow

CMOS microcomputer,

IC for clocks

CMOS microcomputer,

staticRAM/DTS

(digitaltuningsystem)

FM series

Environmental Compliance

AllKEMETsupercapacitorsareRoHSCompliant.

RoHS Compliant