Technical considerationsStages Precautions
FBM Type
1.Circuit Design
2.PCB Design
3.Considerations for
automatic placement
4.Soldering
5.Handling
6.Storage conditions
Operating environment,
1.The products described in this specification are intended for
use in general electronic equipment,(office supply
equipment, telecommunications systems, measuring
equipment, and household equipment). They are not
intended for use in mission-critical equipment or systems
requiring special quality and high reliability (traffic systems,
safety equipment, aerospace systems, nuclear control
systems and medical equipment including life-support
systems,) where product failure might result in loss of life,
injury or damage. For such uses, contact TAIYO YUDEN
Sales Department in advance.
Rated current
1.Rated current of this product is shown in this catalogue, but
please be sure to have the base board designed with
adequate inspection in case of the generation of heat
becomes high within the rated current range when the base
board is in high resistance or in bad heating conditions.
Land pattern design
1.Please contact any of our offices for a land pattern, and refer
to a recommended land pattern of specifications.
Adjustment of mounting machine
1.Excessive impact load should not be imposed on the
products when mounting onto the PC boards.
2.Mounting and soldering conditions should be checked
beforehand.
Wave soldering
1.Please refer to the specifications in the catalog for a wave
soldering.
Reflow soldering
1.Please contact any of our offices for a reflow soldering, and
refer to the recommended condition specified.
Lead free soldering
1.When using products with lead free soldering, we request to
use them after confirming of adhesion, temperature of
resistance to soldering heat, etc. sufficiently.
Preheating when soldering
Heating:The temperature difference between soldering and
remaining heat should not be greater than 150℃.
Cooling:The temperature difference between the components
and cleaning process should not be greater than 100℃.
Recommended conditions for using a soldering iron
Put the soldering iron on the land-pattern.
Soldering iron's temperature - Below 350 ℃
Duration - 3 seconds or less
The soldering iron should not directly touch the inductor.
Handling
1.Keep the inductors away from all magnets and magnetic
objects.
Setting PC boards
1.When setting a chip mounted base board, please make sure
that there is no residual stress to the chip by distortion in the
board or at screw part.
Breakaway PC boards (splitting along perforations)
1.When splitting the PC board after mounting inductors, care
should be taken not to give any stresses of deflection or
twisting to the board.
2.Board separation should not be done manually, but by using
the appropriate devices.
Mechanical considerations
1.Please do not give the inductors any excessive mechanical
shocks.
Storage
1.To maintain the solderability of terminal electrodes and to
keep the packing material in good condition, temperature
and humidity in the storage area should be controlled..
・Recommended conditions
Ambient temperature 0〜40℃
Humidity Below 70% RH
The ambient temperature must be kept below 30℃. Even
under ideal storage conditions, solderability of products
electrodes may decrease as time passes. For this reason,
inductors should be used within 6 months from the time of
delivery.
1.When installing products, care should be taken not to apply distortion stress as it may
deform the products.
1.If products are used beyond the range of the recommended conditions, heat stresses
may deform the products, and consequently degrade the reliability of the products.
1.There is a case that products get damaged by a heat shock.
1.If products are used beyond the range of the recommended conditions, heat stresses
may deformthe products, and consequently degrade the reliability of the products
1.There is a case that a characteristic varies with magnetic influence.
1.There is a case that a characteristic varies with residual stress.
1.Planning pattern configurations and the position of products should be carefully
performed to minimize stress.
1.There is a case to be damaged by a mechanical shock.
1. Under a high temperature and humidity environment, problems such as reduced
solderability caused by oxidation of terminal electrodes and deterioration
of taping/packaging materials may take place.