Conductive Polymer Tantalum Solid Capacitors
1.6 Leakage current
Even when the soldering conditions fall within the range of this delivery specifications, leakage current
increases a little on occasion. It also increases a little during high temperature storage, high humidity storage
and temperature cycling with no voltage applied. In cases such as these, leakage current will decrease by
applying voltage under the condition of below the POSCAP's maximum operating temperature.
The speed at which the leakage current is restored is increased by applying voltage when the POSCAP's
temperature is close to the maximum operating temperature.
1.7 Rapid charge and discharge limitation
Rapid charge and discharge are restricted (for maintainance of high-proof reliability).
A protective circuit is recommended for when a rapid charge or discharge causes excessive rush current
since this is main cause of short circuit and large leakage current. Use a protective circuits in case the rush
✽
current value exceeds 20 A .
Be sure to insert a protection resistor of about 1 kΩ for charge and discharge when measuring the leakage current.
✽ When TH series use under the ambient temperature more than 105 °C : 10 A
TPU series : 10 A
2. Mounting
2.1 Protect circuit
The failure mode of POSCAP is the short mode. When it breaks down, short electric current flows to it.
POSCAP gives off heat by this short current.
Do the following consideration in design fully for the safety because it has a bad influence on the part around
POSCAP due to this heat.
∙ A protective circuit and a protective device are set up, so as to make the system safer.
∙ A diffuse circuit and so on is set up, so as to make the system safer such as that a machine may not
break down as to the single trouble.
2.2 Considerations when soldering
The soldering conditions are to be within the range prescribed in this delivery specification.
If the specifications are not followed, there is the possibility of degradation of electric characteristic and
lifetime when soldering is conducted under conditions that are harsher that those stipulated.
2.3 Others
POSCAP’s Electrical characteristics are affected by temperature and frequency fluctuations.
Design circuits after checking the amount of fluctuation.
3. Storage
It is necessary to set an environment to prevent a trouble at the time of soldering by the degradation of solder
ability or moisture's getting into the molding resin when POSCAP are stored.
Please make storage of POSCAP sealing up in the reel and storage bag at the time of delivery in the following
environment. Also, set storage period as 18 months or shorter.
Room temperature and room humidity (generally : 15 to 35 °C, 45 to 75% RH ) are desirable.
Place where POSCAP is not exposed by direct sunshine.
Please unseal storage bag just before mounting and be conscious that POSCAP in the storage bag is used up.
When remainder unfortunately occurs, return them to the storage bag once again and, please seal the unsealed
part by adhesive tape etc., including desiccants. Moreover, once and use it in time the storage bag is opened,
store POSCAP according to the table's Floor Life “Time” and “conditions”.
Floor life
MSL
Time
Conditions
2a
3
5
4 weeks
168 hours
48 hours
< 30 °C/60 %Rh
< 30 °C/60 %Rh
< 30 °C/60 %Rh
(Conform to IPC/JEDEC J-STD-020)
◇ Intellectual property right
We, Panasonic Group are providing the product and service that customers can use without anxiety, and are
working positively on the protection of our products under intellectual property rights.
Representative patents relating to POSCAP are as follows:
US Patent Nos. 6168639 and 6313979
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
01 Nov. 2015
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