Datasheet

Do not use products beyond the rated current as
this may create excessive heat.
● Rating
● Storage and Operating Condition
<Operating Environment>
Do not use products in chemical atmosphere such as
chlorine gas, acid or sulfide gas.
<Storage Requirements>
1. Storage Period
LQM series should be used within 6 months; the
other products should be used within 12 months.
Check solderability if this period is exceeded.
2. Storage Conditions
(1) Store products in a warehouse in compliance with
the following conditions:
Temperature: -10 to +40 degrees C.
Humidity: 15 to 85% (relative humidity)
Do not subject products to rapid changes in
temperature and humidity.
Do not store them in chemical atmosphere such
as one containing sulfurous acid gas or alkaline
gas.
This will prevent electrode oxidation which causes
poor solderability and possible corrosion of
inductors.
(2) Do not store products in bulk packaging to
prevent collision among inductors which causes
core chipping and wire breakage.
(3) Store products on pallets to protect from humidity,
dust, etc.
(4) Avoid heat shock, vibration, direct sunlight, etc.
● Handling
This item is designed to have sufficient strength, but
handle with care to avoid chipping or breaking its
ceramic structure.
LQW_C series
• To prevent breaking the wire, avoid touching with
sharp material, such as tweezers or other material
such as bristles of cleaning brush, to the wire
wound portion.
• To prevent breaking the core, avoid applying
excessive mechanical shock to products mounted
on the board.
• In some mounting machines, when picking up
components, support pin pushes up the
components from the bottom of base tape. In this
case, please remove the support pin. The support
pin may damage the components and break wire.
• In rare case, the laser recognition can not
recognize this component. Please contact us when
you use laser recognizion. (There is no problem
with the permeation and reflection type.)
• The product temperature rises about 40°C
maximum when the permissible current is applied
to LQW15C/LQW18C. Please care heatproof
temperatures of the substrate and parts in the
surrounding.
LQH_C/D/H/M/N/P series
• To prevent breaking the wire, avoid touching with
sharp material, such as tweezers or other material
such as bristles of cleaning brush, to the wire
wound portion of this product.
• To prevent breaking the core, avoid applying
excessive mechanical shock to products mounted
on the board.
• Temperature may rise up to max. 40 °C when
applying the rated current to Inductor for Power Lines.
Be careful of the temperature rating of the circuit
board and components around the chip inductor.
LQM series
• There is the possibility that magnetism may change
the inductance value. Do not use a magnet or
tweezers with magnetism when handling chip
inductors. (The tip of the tweezers should be
molded with resin or pottery.)
• When the excessive current over rated current is
applied, it may cause the inductance value to
change due to magnetism.
<Handling>
1. Avoid applying excessive stress to products to
prevent damage.
2. Do not touch wire wound with sharp objects such
as tweezers to prevent wire breakage.
3. Do not apply excessive force to products mounted
on boards to prevent core breakage.
<Transportation>
Do not apply excessive vibration or mechanical shock
to products.
<Resin Coating>
When coating products with resin, the relatively high
resin curing stress may change inductance values.
For exterior coating, select resin carefully so that
electrical and mechanical performance of the product
is not affected. Prior to use, please evaluate reliability
with the product mounted in your application set.
(LQW, LQH series)
An open circuit issue may occur by mechanical
stress caused by the resin, amount/cured shape of
resin, or operating condition etc. Some resins
containing impurities or chloride may possibly
generate chlorine by hydrolysis under some
operating condition may cause corrosion of wire of
inductor, leading to open circuit.
!Caution
Notice
Inductor for Power Lines (Power Inductor) !Caution/Notice
Continued on the following page.
78
Inductor for Low Frequency CircuitsRF Inductor
!Caution/ Notice
Inductor for Power Lines (Power Inductor)
!Note
• Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please review our product specifications or consult the approval sheet for product specifications before ordering.
O05E.pdf
Oct.13,2011