PVG5/PV01 Series Notice
37
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!Note
• Please read rating and !CAUTION (for storage and operating, rating, soldering and mounting, 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 approve our product specification or transact the approval sheet for product specification before ordering.
■ Notice (Operating and Storage Conditions)
1. Store that the temperature is -10 to +40deg. C and
the relative humidity is 30-85%RH.
2. Do not store in or near corrosive gases.
3. Use within six months after delivery.
4. Open the package just before using.
5. Do not store under direct sunlight.
6. The trimmer potentiometer should not be used under
the following environmental conditions:
If you use the trimmer potentiometer in an
environment other these listed below, please
consult with Murata factory representative prior to
using.
(1) Corrosive gaseous atmosphere.
(Ex. Chlorine gas, Hydrogen sulfide gas, Ammonia
gas, Sulfuric acid gas, Nitric oxie gas, etc.)
(2) In liquid.
(Ex. Oil, Medical liquid, Organic solvent, etc.)
(3) Dusty/dirty atmosphere.
(4) Direct sunlight.
(5) Static voltage nor electric/magnetic fields.
(6) Direct sea breeze.
(7) Other variations of the above.
■ Notice (Rating)
1. When using with partial load (rheostat), minimize
the power depend on the resistance value.
2. The maximum input voltage to a trimmer
potentiometer should not exceed (P•R)^1/2 or the
maximum operating voltage, whichever is smaller.
3. The maximum input current to a trimmer
potentiometer should not exceed (P/R)^1/2 or the
allowable wiper current, whichever is smaller.
■ Notice (Soldering and Mounting)
1. Soldering
(1) Standard soldering condition
(a) Reflow and flow soldering :
Refer to the standard temperature profile.
(b) Soldering iron :
>Temperature of tip 260 deg.C max.
>Soldering time 3sec. max.
>Diameter 2mm dia. max.
>Wattage of iron 30W max.
Before using other soldering conditions than
those listed above, please consult with Murata
factory representative prior to using. If the
soldering conditions are not suitable, e. g.,
excessive time and/or excessive temperature,
the trimmer capacitor may deviate from the
specified characteristics.
(2) Can not be soldered using the flow soldering
method. If you use the flow soldering method,
the trimmer potentiometer may not function.
(3) The soldering iron should not come in contact
with the case of the trimmer potentiometer. If
such contact does occur, the trimmer
potentiometer may be damaged.
(4) Insufficient amounts of solder can lead to
insufficient soldering strength on PCB.
Excessive amounts of solder may cause the
bridging between the terminals.
2. Mounting
(1) Use our standard land dimension. Excessive land
area causes displacement due to effect of the
surface tension of the solder. Insufficient land
area leads to insufficient soldering strength of
the chip.
(2) Do not apply excessive force (preferable 9.8N
(Ref.; 1kgf) max.), when the trimmer potentiometer
is mounted to the PCB.
(3) Do not warp and/or bend PC board to prevent
trimmer potentiometer from breakage.
(4) In chip placers, the recommended size of the
cylindrical pick-up nozzle should be outer
dimension 4.0mm dia. and inner dimension 2.0mm
dia..
3. Cleaning
(1) Isopropyl-alcohol and Ethyl-alcohol are
applicable solvent for cleaning. If you use any
other types of solvents, please consult with
Murata factory representative prior to using.
(2) The total cleaning time by cold dipping, vaper
and ultrasonic washing (conditions as below)
method shall be less than 3 minutes.
(3) For ultra-sonic cleaning, the available
condition is as follows.
>Power : 600W (67liter) max.
>Frequency : 28kHz
>Temperature : Ambient temperature
Due to the ultra-sonic cleaning equipment
peculiar self resonance point and the cleaning
compatibility usually depends on the jig
construction and/or the cleaning condition such
as the depth of immersion, please check the
Continued on the following page.
Please read rating and !CAUTION (for storage and operating, rating, soldering and mounting, handling) in this PDF catalog to prevent smoking and/or burning, etc.
This catalog has only typical specifications. Therefore, you are requested to approve our product specification or to transact the approval sheet for product specificaion before ordering.
!Note
R50E12.pdf 02.9.5
