148
NOTE
Design, Specifications are subject to change without notice.
Ask factory for technical specifications before purchase and/or use.
CAT.No.2005/2006E(2005.10.1)
ELECTRIC DOUBLE LAYER CAPACITORS “DYNACAP”
DC,DCK
Standard Ratings
Max. operating voltage(V) Rated capacitance(F) ø DxL(mm)ELNA Parts No.
2.5
3.3
DC-2R5D224
DC-2R5E224U-E
DCK-3R3D224
DCK-3R3E224U-E
6.8x2.1
6.8x2.1
0.22
0.22
Coin Cell Capacitors
• Small-sized, but large capacity.
• Unlike batteries, unlimited charge/discharge
cycles; ideal for solar watches, solar calculators,
solar remote control units, camaras and the like.
Outline Drawing
Unit: mm
Specifications
Item Performance
Series Name
Rated voltage (V)
Category temperature range (˚C)
Tolerance at rated capacitance (%)
Rated Capacitance (F)
Internal resistance(Ω)
at 1 kHz
Characteristics at high
and low temperature
Endurance
Shelf life Test time :
1000 hours ; Same as endurance.
−25 to +70 −10 to +60
DC series DCK series
2.5 3.3
−20 to +80 −20 to +80
0.22
100
0.22
200
Percentage of capacitance change
Internal resistance
Within ±30% of the value at 20
˚C
Less than five times of the value at 20
˚C
Percentage of capacitance change
Internal resistance
Within ±50% of the value at 20
˚C
Within five times the initial specified value
Test temperature
Test time
Percentage of capacitance change
Internal resistance
70
˚C
1000 hours
Within
±30% of the initial measured value
Within four times of the initial specified value
Test temperature
Test time
Percentage of capacitance change
Internal resistance
60
˚C
1000 hours
Within
±30% of the initial measured value
Within four times of the initial specified value
DB DC
DCK
For higher
voltage
tolerant
Coin Cell
Part numbering system (example: 2.5V0.22F, terminal shaped: E)
DC — —
Series code
DCK
Series code
2R5 224
Rated voltage
symbol
Rated capacitance
symbol
EE
Part numbering system (example: 3.3V0.22F, terminal shaped: E)
——3R3 224
Rated voltage
symbol
Rated capacitance
symbol
EE
Additional
symbol
Additional
symbol
Part number is refer to below table.
GREEN
CAP
60˚C
70˚C
