Matters to Be Observed When Using This Product
■
When soldering the resistor using a soldering iron, apply hot air, etc., to the resistor to heat it sufficiently in advance and
then solder the resistor without bringing the soldering iron tip into contact with the product. If the temperature of the
soldering iron tip is high, finish the soldering work quickly (within 3 seconds when the temperature of the soldering iron
tip is 350
℃
or lower). In the case of a fixed resistor with low resistance, the resistor may fail to offer the exactly intended
resistance value because of the variation in the solder volume, etc. Make sure to confirm the resistance value of the
resistor in the actual circuit configuration.
■
Soldering the resistor with too much solder or too little solder results in the poor reliability of the solder connection of the
resistor. Use the proper volume of solder in the soldering process. Sufficiently check for the volume of solder used.
■
Soldering with high bond strength or special property solder may affect the quality of the resistor. Do not use such solder.
■
Use rosin-based solder flux. When using highly active solder flux made mainly of halogen (chlorine, bromine, etc.), flux
residues may affect the performance and reliability of the resistor. Check the effects of flux residues before using the
solder flux. Do not use highly acidic flux, water-soluble flux, or flux containing fluoride ions. When solder flux sticks to the
resistor after the soldering process, the activation energy of the flux may corrode the resistor and cause it to fail. Prevent
solder flux from sticking to the resistor.
Keeping the product in the following environments or conditions may lead to degradation of its performance, solderability, etc.
Do not keep the product in the following environments.
(1) Stored in a place where the product is heavily exposed to sea breeze or a corrosive gas, such as Cl
2
, H
2
S, NH
3
, SO
2
,
or NO
X
.
(2) Stored in a place where the product is exposed to direct sunlight.
(3) Stored in a place where a temperature condition of 5
℃
to 35
℃
and a relative humidity condition of 45% to 85% cannot
be maintained.
(4) Kept in storage for more than one year from the delivery date.
Storage conditions
30-Jun-23
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