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Seiko Instruments Electronic Components Datasheet

CPH3225A Datasheet

Capacitor

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CPH Capacitor
Pb-free reflowable
CPH3225A
FEATURES
CPH3225A is thinnest and smallest chip-type electric double
layer capacitor.
The unique ceramic packaging with superior air-tightness is
used. As the result, it offers leakage resistance and humidity
resistance. Also, by optimizing its materials, a 1 minute rapid
charge stores approximately 85% of full capacity.
Its heat-resistant design allows for Pb-free reflowable SMT
board attachment.
SPECIFICATIONS
• Small and thin size
• Excellent leakage resistance and humidity resistance
• Pb-free reflowable:
Superior heat resistance (260°C peak) allows reflow
soldering by Pr-free solder
• Long cycle Life:
At least 10,000 times of charge/discharge
• Simple Charging circuit (constant voltage charging)
• Wide operating temperature range:
Operating temperature range: −20°C to +60°C
For use the battery at a temperature out of the above
temperature range, please consult us.
• RoHS Compliant
APPLICATIONS
Backup Power for various devices.
Super small size power supply.
Smartphone, Tablet, Cellphone, Personal computer, IC
card, Game machine, Handy terminal, Video camera,
various kinds of small appliance, etc.
Type
CPH3225A
Maximum Use
Voltage (V)
3.3
Nominal Capacity
(Voltage Range)
Capacitance
4.6µAh (3.3V-1.8V)
0.011F
Internal Impedance*
<Nominal>
()
160
*. Value measured using AC (Alternating Current) method at the discharged state.
Size(L × W × H)
(mm)
3.2 × 2.5 × 0.9
Weight
(g)
0.025
<APPLICATION NOTES>
Prohibition ripple charging
A ripple (high frequency fluctuation of
voltage) in the charge voltage extremely
lowers the capacitor performance.
Be sure to charge capacitors with a
stable voltage.
Charge voltage
The age deterioration of the capacitor
depends on the charge voltage.
The age deterioration is accelerated as
charge voltage goes higher.
Usage environment
Aging degradation of the capacitor varies
depending on the usage environment
(temperature and humidity).
Contact us for further details.
CHARACTERISTICS
Charge/discharge characteristics
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
Charge: max. 1 mA/3.3V/2 hours
(CC/CV)
Discharge: 5µA/c.o.v.= 0V (CC)
246
Capacity (µAh)
* c.o.v. : Cut off Voltage
8
10
14 Micro Battery 2016


Seiko Instruments Electronic Components Datasheet

CPH3225A Datasheet

Capacitor

No Preview Available !

CPH Capacitor
CHARACTERISTICS
120
100
80
60
40
20
0
0
Charge Time Characteristics
Charge: max. 10mA/3.3V/
respective charge time (CC/CV)
Discharge: 5µA/c.o.v.= 2.0V (CC)
1 10 100
Charge Time (minutes)
1000
Pb-free reflowable
Float-Charge Characteristics (60ºC, 90%RH)
120
100
80
60
40 Storage condition: 60°C/90%RH/3.3V applied
[Capacity measurement conditions]
20 Charge: max. 1mA/3.3V/2 hours (CC/CV)
Discharge: 5µA/c.o.v.= 2.0V (CC)
0
0 5 10 15
Float Charge Period (days)
20
REFLOW SOLDERING CONDITIONS
Reflow Profile Example
250
200
150
100 Time above
200°C
50
0
0 50 100 150 200 250 300
Time (seconds)
The times of repeated reflow soldering must be two times or less.
The Temperature must be measured at top of the cell.
Recommended Reflow Conditions
270
The peak temperature is within five seconds.
260
250
240
230
220
0
10 20 30 40 50 60
Time above 200°C (seconds)
Max. 260°C (within 5 seconds)
70
DIMENSIONS
CPH3225A
3.6
0.2
3.2±0.1
1.4 1.4
Recommended board layout
(Tolerance : ±0.05)
(0.15)
(0.15)
Micro Battery 2016
1.0±0.15
- Units: mm
1.0±0.15
15


Part Number CPH3225A
Description Capacitor
Maker Seiko
Total Page 2 Pages
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