DC-2R5E224U-E Elna America, DC-2R5E224U-E Datasheet - Page 31

• Manufacturer Part Number: DC-2R5E224U-E
• Description: CAP DOUBLE LAYER .22F 2.5V COIN
• Manufacturer: Elna America
• Series: DCr

Specifications of DC-2R5E224U-E

• Capacitance: 220mF
• Voltage - Rated: 2.5V
• Tolerance: -20%, +80%
• Esr (equivalent Series Resistance): 100.00 Ohm
• Lifetime @ Temp.: 1000 Hrs @ 70°C
• Mounting Type: Surface Mount
• Package / Case: Surface Mount - Coin Style
• Lead Spacing: 0.079" (2.00mm)
• Height: 0.295" (7.50mm)
• Size / Dimension: 0.268" Dia (6.80mm)
• Operating Temperature: -25°C ~ 70°C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 604-1006

NOTE
Design, Specifications are subject to change without notice.
Ask factory for technical specifications before purchase and/or use.
10. Insulation between the capacitor case and the
11. External sleeve.
12. Fumigation Process
13. Specific Operating Environments
14. Use at a high altitude
15. Hole pitch adjustment of the PCB to the
16. Capacitors with pressure valves.
• A part of the capacitor case is made thin to have
• The capacitor case and the cathode terminal are
• The use of capacitors at high altitudes such as on
• Set the hole pitch of the PCB to the lead pitch (the
• When exporting electronic equipment abroad,
• Capacitors may corrode when stored or used in a
• During a preheating or a hardening of mounting
case is necessary, add an insulator at assembly.
the function as the pressure valve in order to pre-
the design of the appliance is also recommended,
considering the effect of the initial increased current.
connected through the electrolyte which has
uncertain resistance. If a complete insulation of the
adhesive may cause a sleeve cracked.
The capacitors are usually sleeved with poly vinyl
chloride or poly ethylene terephthalate for the
indication purpose only. Please do not consider it
as an insulation.
fumigation process may be performed on wooden
packaging material with a halogen (compound) gas
such as methyl bromide. Exercise care as this
halogen gas may corrode capacitors. Also, use
caution to epidemic preventive agent as corrosive
component such as halogen may be contained.
an airplane causes a large difference between the
internal pressure of the capacitors and the atmos-
pheric pressure. However, there is no problem in
use under atmospheric pressure up to about an
altitude of 10,000 meters. Please check the
operation of electronic equipment at the operating
environmental
temperature lowers with increased altitude.
“F” distance in the catalog) of the capacitor. Be
careful since a short circuit, a cut or an increase
in the leakage current etc. may be caused by the
stress given to the lead wire terminals due to the
difference between the hole pitch and the lead
pitch.
place filled with acidic toxic gases (such as
hydrogen sulfide, sulfurous acid, nitrous acid,
chlorine, bromine, methyl bromide, etc.)
If
environments, please let us know.
cathode terminal.
capacitors.
capacitors
®
are
temperature
used
or
stored
because
in
such
the
17. Double-sided PCB’s
18. Regarding to connection of capacitors
1. Cautions for mounting.
• Check the ratings (electrostatic capacitance and
• Check the polarity of the capacitor to the chassis.
• Do not drop the capacitor to the floor. Do not use
• When you use a capacitor with pressure valve,
• When you use electrolytic capacitors on a double
• Aluminum electrolytic capacitor has electrolyte liquid
• When two or more capacitors are arranged in
Cautions for Mounting
vent explosion due to the rise of inside pressure
when a reverse or excessive voltage is applied to
the capacitor. Once it has worked as a valve, the
whole capacitor needs to be replaced since the
valve will not restore.
provide certain space above the pressure valve as
below to prevent an interference when it works as
a valve.
sided PCB, be careful not to have the circuit pattern
run under where the capacitor is mounted.
Otherwise it may cause a short circuit on the PCB
depending on the condition of mounting.
so
characteristics came from E.S.R(Equivalent Series
Resistance) of electrolyte liquid. Therefore the
capacitor is an electronic devise which can flow high
ripple current in case the temperature increases and
it decreases E.S.R.
In case connecting two capacitors or more, E.S.R. of
the capacitors is close to the resistance of the circuit.
Therefore in case current is unbalanced and some
capacitors has high ripple current, temperature
increase, it makes more high current and finally it is
over the rated ripple current.
For parallel connection of capacitors the proper
design of electric circuit such as balancing of each
capacitors resistance or control of total ripple current
shall be provided to avoid excess ripple current and
voltage.
series, the voltage given to each capacitors shall
be kept below the rated voltage level, by also giving
consideration to the balance of the voltage
impressed on the capacitors. Further, partial
pressure resistor which considers leakage current
shall be provided parallel to each condenser not to
have over-voltage impressed on.
Balance resistance are explained on p.106 of our
Catalog.
rated voltage) of the capacitor before mounting.
Diameter of the capacitor
above the valve (mm)
Required space
that
ALUMINUM ELECTROLYTIC CAPACITORS
(mm)
the
most
portion
CAT.No.2008/2009E ( 2008.10.1 )
18 to less
2.0
of
electric
20 to 40
3.0
loss