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BCAP0650 Datasheet, PDF (3/5 Pages) Maxwell Technologies – K2 SERIES ULTRACAPACITORS
DATASHEET K2 SERIES ULTRACAPACITORS
LIFE (Cont'd)
ESR Change
(% increase from maximum initial value)
Test Current
Shelf Life
(Stored uncharged at 25oC)
100%
65 A
4 years
100%
75 A
4 years
100%
100 A
4 years
100%
100 A
4 years
100%
100 A
4 years
ESR AND CAPACITANCE VS TEMPERATURE
180%
170%
Capacitance
DC ESR
160%
150%
140%
130%
120%
110%
100%
90%
80%
-60
-40
-20
0
20
40
60
80
Temperature (°C)
NOTES
1. Capacitance and ESRDC measured at 25°C using
specified test current per waveform below.
2. Absolute maximum voltage, non-repeated. Not to
exceed 1 second.
3. After 72 hours at rated voltage. Initial leakage current
can be higher.
0.12V2
4. Per IEC 62391-2, Pd = ESRDC x mass
V2
5. Pmax = 4 x ESRDC x mass
6.
Emax =
½ CV2
3,600 x mass
7. Estored = ½ CV2
3,600
8. ∆T=IRMS2 x ESR x Rca
9. Cycle using specified test current per waveform
below.
10. Cycle life varies depending upon application-specific
characteristics. Actual results will vary.
11. Per United Nations material classification UN3499, all
Maxwell ultracapacitors have less than 10 Wh capacity
to meet the requirements of Special Provisions 361.
When packaged according to the regulation, both
individual ultracapacitors and modules composed
of those ultracapacitors shipped by Maxwell can be
transported without being treated as dangerous
goods (hazardous materials).
Page 3 Document number: 1015370.4 maxwell.com