Multilayer Ceramic Capacitors
Approval Sheet
◙ Example of customer label
a. Customer name
b. WTC order series and item number
c. Customer P/O
d. Customer P/N
e. Description of product
f. Quantity
g. Bar code including quantity & WTC P/N or customer
h. WTC P/N
i. Shipping date
j. Order bar code including series and item numbers
k. Serial number of label
*Customized label is available upon request
◙ Constructions
No.
1
2
3
4
5
Name
NPO
X7R, X5R, X6S, X7S, Y5V
BaTiO3 based
Ceramic material
Inner electrode
CaZrO3 based
Ni
Cu
Ni
Inner layer
Termination
Middle layer
Outer layer
Sn
Fig. 5 The construction of MLCC
◙ Storage and handling conditions
(1) To store products at 5 to 40°C ambient temperature and 20 to 70%. related humidity conditions.
(2) The product is recommended to be used within one year after shipment. Check solderability in case of shelf life extension
is needed.
Cautions:
a. The corrosive gas reacts on the terminal electrodes of capacitors, and results in the poor solderability. Do not
store the capacitors in the ambience of corrosive gas (e.g., hydrogen sulfide, sulfur dioxide, chlorine, ammonia
gas etc.)
b. In corrosive atmosphere, solderability might be degraded, and silver migration might occur to cause low
reliability.
c. Due to the dewing by rapid humidity change, or the photochemical change of the terminal electrode by direct
sunlight, the solderability and electrical performance may deteriorate. Do not store capacitors under direct
sunlight or dewing condition. To store products on the shelf and avoid exposure to moisture.
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ASC_General Purpose_001AE_AS
May. 2019