三星MLCC陶瓷电容命名规则.pdf

三星MLCC陶瓷电容命名规则

MLCC is an electronic part that temporarily stores an electricalcharge and  the
most prevalent type of capacitor today.  New technologies have enabled the
MLCC manufacturers to   follow the trend dictated by smaller and
smaller electronic devices   such as Cellular telephones, Computers, DSC, DVC

  STORAGE CONDITION
Ü Storage Environment
The electrical characteristics of MLCCswere degraded by the environment of high temperature  or
humidity. Therefore, the MLCCsshall be stored in the ambient temperature and the relative humidit
of less than 40 and 70%, respectively.
Guaranteed storage period is within 6 months  from the outgoing date of delivery.
Ü Corrosive Gases
Since the solderabilityof the end termination in MLCC was degraded by a chemical atmosphere 
such as chlorine, acid or sulfide gases, MLCCsmust be avoid from these gases.
Ü Temperature Fluctuations
Since dew condensation may occur by the differences in temperature when the MLCCsare  taken
out of storage, it is important to maintain the temperature-controlled environment.
  DESIGN OF LAND PATTERN
When designing printed circuit boards, the shape and size of thelands must allow for the  proper
amount of solder on the capacitor.
The amount of solder at the end  terminations has a direct effect on the crack.
The crack in MLCC will be easily occurred by the tensile stress which  was due to too much amount
of solder. In contrast, if too little solder is applied, the termination strength will be insufficiently.