Datasheet

Chip Ferrite BeadChip EMIFILr
Chip Common Mode Choke Coil
Block Type EMIFILrMicrowave Absorber
!Note
• This PDF catalog is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our
sales representatives or product engineers before ordering.
• This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
C31E.pdf
09.4.20
154
Chip Common Mode Choke Coil
!Caution/Notice
Do not use products beyond the rated current and rated
voltage as this may create excessive heat and
deteriorate the insulation resistance.
2. Mounting Direction
Mount Chip Common Mode Choke Coils in right
direction. Wrong direction, which is 90 degrees rotated
from right direction, causes not only open or short
circuit but also flames or other serious trouble.
● Notice (Soldering and Mounting)
<Operating Environment>
Do not use products in a chemical atmosphere such as
chlorine gas, acid or sulfide gas.
Do not use products in the environment close to the
organic solvent.
<Storage and Handling Requirements>
1. Storage Period
DLW11G/DLM2HG series should be used within 6
months, the other series should be used within 12
months.
Solderability should be checked if this period is
exceeded.
2. Storage Conditions
(1) Storage temperature: -10 to +40˚C
Relative humidity: 30 to 70%
Avoid sudden changes in temperature and humidity.
(2) Do not store products in a chemical atmosphere
1. Cleaning
Failure and degradation of a product are caused by
the cleaning method. When you clean in conditions
that are not in mounting information, please contact
Murata engineering.
2. Soldering
Reliability decreases with improper soldering methods.
Please solder by the standard soldering conditions
shown in mounting information.
3. Other
Noise suppression levels resulting from Murata's EMI
suppression filters EMIFILr may vary, depending on
the circuits and ICs used, type of noise, mounting
pattern, mounting location, and other operating
conditions. Be sure to check and confirm in advance
the noise suppression effect of each filter, in actual
circuits, etc. before applying the filter in a commercial-
purpose equipment design.
● Handling
1. Resin Coating (Except DLW Series.)
Using resin for coating/molding products may affect
the products performance.
So please pay careful attention in selecting resin.
Prior to use, please make the reliability evaluation with
the product mounted in your application set.
2. Resin Coating (DLW Series)
The impedance value may change due to high cure-
stress of resin to be used for coating/molding products.
An open circuit issue may occur by mechanical stress
caused by the resin, amount/cured shape of resin, or
operating condition etc. Some resin contains some
impurities or chloride possible to generate chlorine by
hydrolysis under some operating condition may cause
corrosion of wire of coil, leading to open circuit.
So, please pay your careful attention in selecting resin
in case of coating/molding the products with the resin.
Prior to use the coating resin, please make sure no
reliability issue is observed by evaluating products
mounted on your board.
3. Caution for Use (DLW Series)
When you hold products with a tweezer, please hold
by the sides. Sharp materials, such as a pair of
tweezers, should not touch the winding portion to
prevent breaking the wire. Mechanical shock should
not be applied to the products mounted on the board
to prevent breaking the core.
● Soldering and Mounting
1. Self-heating
Please provide special attention when mounting chip
common mode choke coils DLW5 series in close
proximity to other products that radiate heat.
The heat generated by other products may deteriorate
the insulation resistance and cause excessive heat in
this component.
right direction
wrong direction
Z Z
● Storage and Operating Conditions
Notice
● Rating
!Caution