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
NP0
Ceramic material
Inner electrode
Hi-Q dielectric ceramic
Cu
Cu + Conductive Resin
Ni
Inner layer
Termination
Middle layer
Outer layer
Fig. 5 The construction of MLCC
Sn (Matt)
◙ Storage and handling conditions
(1) To store products at 5 to 40°C ambient temperature and 20 to 70%. related humidity conditions; MSL Level 1.
(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.
Page 9 of 10
ASC_Microwave_AECQ200_RT
Feb. 2023