■ RELIABILITY DATA
Specifications
Items
Test Conditions, Remark
HR type
－20～＋60℃
3.3V
SR type
1. Operating Temperature range
2. Max. Usable Voltage
－25～＋70℃
2.5V（2.6V*）
Conduct reflow soldering twice according to the reflow soldering test condition
mentioned below.
(Conduct the reflow in the condition of the voltage of 0.3V or lower.)
3. Resistance to Reflow
Soldering Heat
Capacity/Capacitance : Within initial spec.
Appearance : No noticeable abnormality
Apply a max.usage voltage to the capacitor for 500 hours at max. operating
temp. and measure the floating charge characteristics after returning to normal
temperature and humidity.
Capacity/Capacitance : Over 70% of initial spec.
Appearance : No noticeable abnormality
4. Floating Charge Characteristics
Measure the charge/discharge cycle characteristics after the 10000 cycles of
charge/discharge at 25±5 ℃ with the charge/discharge cycle test condition for
each part.
5. Charge/Discharge
Cycle Characteristics
Capacity/Capacitance : Over 50% of initial spec.
Appearance : No noticeable abnormality
Capacity/Capacitance : Over 80% of initial spec.
Appearance : No noticeable abnormality
Leave the capacitor in an atmosphere of 85℃±2℃ and －30±2℃ consecutively
6. Thermal Durability
7. Humidity Durability
8. Vibration Durability
for 96 hours each, and return to normal temperature and humidity.
Capacity/Capacitance : Over 80% of initial spec.
Appearance : No noticeable abnormality
Temperature : 40±2℃, Humidity : 90～95%RH Leave the capacitor for under the
condition for 96hours then return to normal temperature and humidity.
No exterior abnormality observed :
initial spec. values retained
Apply a sine wave vibration of 1.5mm amplitude at frequency 10~55Hz, for 2hours
per each direction (X,Y and Z) , for 6 hours in total.
(*) : 2.6V for PAS311SR
◦ꢀReflow Soldering Test Condition
Reflow profile with lead free condition
◦ꢀCharge/Discharge Cycle Test Condition
Part Number
311HR
409HR
414HR
3000
311SR
150
414SR
150
Charging/Discharging
Resistance (Ω)
3000
3000
260
Charging Voltage (V)
Charging Time (min.)
Discharging Time (min.)
3.3
12
3
3.3
12
3
3.3
24
6
2.5
5
2.5
9
0.5
1
Cautions : Do not charge prior to reflow,
Set reflow condition within the range provided in "Specifications", which will
be published separately.
■ PRECAUTIONS
1. Use under the maximum usable voltage.
12.Soldering
If over maximum usable voltage is applied, it might cause abnormal current flow,
which shorten lifetime, leakage and sometimes damage PAS capacitor.
If next each item is not minded, it may cause deteriorating of its performance,
leakage, shortening lifetime.
◦ Don’t contact solder iron to a cell body.
◦ Don’t solder over solder conditions in the spec. sheet.
◦ Don’t charge/discharge before reflow.
2. Use under maximum operating temperature.
Not only shorter life time but also leakage and damage will happen by increasing
internal pressure if PAS capacitor use in over max operating temperature.
※The use of the soldering iron is outside the guarantee of this product.
3. Limited life time.
13.Mind cleaning condition when cleaning circuit-board after soldering.
Cleaning may affect PAS capacitor. Consult us about cleaning conditions before-
hand. Some cleaning conditions cause detrimental influence.
Lifetime of PAS capacitor is greatly affected by surrounding temperature. 10℃
drop in temperature extend its expected lifetime approximately twice as much.
Design a circuit under consideration of deterioration of electrical characteristics
after long time usage, decreasing in capacitance and increasing in internal resis-
tance.
14. Storage
Keep following cautions for storage of PAS capacitor
◦ Don’t store in the high temperature and the high humidity condition and a place
4. The electrical characteristics of capacitors vary with respect to temperature.
The electrical characteristics of PAS capacitors temporarily vary with respect to
temperature separately from secular change mentioned above. Design a circuit
under consideration of temperature characteristics.
where receiving direct
sunlight. Storing PAS capacitor in the room condition
of 10℃ - 35℃ and less than 65% relative humidity is recommended. Sudden
temperature change or high humidity may cause deteriorating of its character-
istics and Soldering.
◦ Don’t store PAS capacitor near water, salt water or oil, and it the dew conden-
sation, gasified oil or salinity filled place.
◦ Don’t store PAS capacitor in the hazardous gas (hydrogen sulfide, sulfurous,
chlorine, ammonia, bromine, methyl bromine and etc) .
◦ Don’t fumigate by halogen fumigant.
◦ Don’t store PAS capacitor near acid or alkaline solvent.
◦ Don’t store PAS capacitor in a place where exposed to ozone, ultraviolet or
x-ray.
5. PAS capacitor has polarity.
PAS capacitor has polarity. Please check the polarity before use. It will be damage
if it is reverse charged.
6. Mind high ripple current or rapid charge / discharge.
In circuit with high ripple current or rapid charge / discharge, the lifetime of PAS
capacitors might be shortened by self-heating.
7. Mind voltage drop when back-up.
When back-up (discharging) starts, voltage drop because of active current and
internal resistance.
◦ Don’t store PAS capacitor in a place where vibration and shock might occur in.
15. Disposal
8. Series connection.
Dispose PAS capacitor in accordance with local and country rules and regulations.
In case of using PAS capacitor in series connection, the voltage of each capacitor
is not always equal and it may be occurred excessive voltage in a part of capaci-
tor, which may lead to shortening lifetime and breakdown. Take a margin against a
rated voltage or add a balancing resister.
16. Usage
PAS capacitor is developed on the assumption of the memory-backup & RTC for
usage of information & communicationꢁequipment, home electronics, audio &
visual equipment, office equipment and etc. Consult us about using high reliability
and safety required products such as medical equipment, transportation equip-
ment, industrial equipment, flight / space equipment and emergency equipment.
9. Don’t contact with wiring pattern during installing
IfꢀPASꢀcapacitorꢀcontactꢀwithꢀwiringꢀpattern,ꢀitꢀwillꢀbeꢀshortꢀcircuit,ꢀandꢀifꢀthereꢀisꢀwiringꢀ
patternꢀunderneathꢀofꢀPASꢀcapacitor,ꢀshortꢀcircuitꢀwouldꢀoccurꢀbyꢀdamageꢀofꢀresist.
17. Other Notice
◦ Don’t heat or throw PAS capacitor into fire.
◦ Don’t short circuit.
◦ Don’t solder directly to a cell body.
◦ Don’t open a body.
◦ Don’t deform.
◦ Don’t apply pressure.
10.Environmental of usage.
In case PAS capacitor is used in high humidity, alkaline or acid air, it may cause deterio-
rating of its performance and short circuit by corrosion of outer can or lead terminal. In
addition, used in sudden temperature change or high humidity, it may cause deteriorat-
ing of its performance and electrolyte leak by dew condensation.
11.Don’t apply shock and vibration or pressure.
PAS capacitor is sensitive to shock. Don’t drop PAS capacitor and not apply
strong pressure to a body, terminals and lead. Soldering part or lead terminal
might be damaged if applying vibration, shock and stress such as pinch, tip, push
and twist after installed.
＊This catalog contains the typical specification only due to the limitation of space. When you consider the purchase of our products, please check our specification.
For details of each product (characteristics graph, reliability information, precautions for use, and so on), see our Web site (http://www.ty-top.com/) or CD catalogs.
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