DC,DCK
ELECTRIC DOUBLE LAYER CAPACITORS “DYNACAP”
Coin Cell Capacitors
Series DC,DCK
• 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.
Coin Cell
DB
DC
For higher
voltage
tolerant
DCK
Specifications
Item
Series Name
Rated voltage (V)
Category temperature range (˚C)
Tolerance at rated capacitance (%)
Performance
DC series
2.5
−25
to
+70
−20
to
+80
0.22
100
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
DCK series
3.3
−10
to
+60
−20
to
+80
0.22
200
Within
±50%
of the value at 20˚C
Within five times the initial specified value
Rated Capacitance (F)
Internal resistance(Ω)
at 1 kHz
Characteristics at high
and low temperature
Test temperature
Test time
Endurance
Percentage of capacitance change
Internal resistance
Shelf life
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
Test time :1000 hours ; Same as endurance.
Outline Drawing
Terminal shaped: E
2.6MAX
L±0.2
2.3MAX
Unit: mm
D±0.2
Solder plated
1.7±0.3
0.5±0.1
2.0±0.3
2.5±
0.3
0.5
0.15±0.05
Part numbering system (example: 2.5V0.22F, terminal shaped: E)
Environmental
item
Part numbering system (example: 3.3V0.22F, terminal shaped: E)
Environmental
item
DC
Series code
—
2R5
Rated voltage
symbol
E
224
Rated capacitance
symbol
U or T — E
DCK
Series code
6.8
—
3R3
Rated voltage
symbol
E
224
Rated capacitance
symbol
U or T — E
Former item
DC
Series code
—
2R5
Rated voltage
symbol
E
224
Rated capacitance
symbol
— E
Former item
DCK
Series code
—
3R3
Rated voltage
symbol
E
224
Rated capacitance
symbol
— E
Standard Ratings
Max. operating voltage(V)
2.5
Rated capacitance(F)
0.22
DC-2R5E224
DCK-3R3D224
3.3
0.22
DCK-3R3E224
-E
6.8x2.1
-E
ELNA Parts No.
DC-2R5D224
6.8x2.1
ø DxL(mm)
CAT.No.2004/2005E(2004.10.1)
144
NOTE
Design, Specifications are subject to change without notice.
Ask factory for technical specifications before purchase and/or use.
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