4. Soldering (Prevention of the thermal shock)
If a chip component is heated or cooled abruptly during
soldering, it may crack due to the thermal shock. To
prevent this, follow our recommendations below for
adequate soldering conditions.
5. Soldering Method
GR/GA products whose sizes are 3.2Z1.6mm and under
for flow and reflow soldering, and other sizes for reflow
soldering.
Be sure to contact our sales representatives or engineers
in case that GR/GA products (size 3.2Z2.5mm and over)
are to be mounted with flow soldering. It may crack due
to the thermal shock.
FAILURE TO FOLLOW THE ABOVE CAUTIONS MAY
RESULT, WORST CASE, IN A SHORT CIRCUIT AND
FUMING WHEN THE PRODUCT IS USED.
Carefully perform pre-heating so that temperature
difference (∆T) between the solder and component
surface is in the following range. When components
are immersed in solvent after mounting, pay special
attention to keep the temperature difference within
100˚C.
When correcting chips with a soldering iron, no
preheating is required if the chip is listed in following
table and the following conditions are met.
Preheating should be performed on chips not listed in
following table.
3.2g1.6mm
and under 3.2g2.5mm
and over
Chip Size
Soldering Method
Reflow Method or
Soldering Iron Method
Flow Method or
Dip Soldering Method
∆TV190˚C
∆TV150˚C
∆TV130˚C
Conditions
Item
Chip Size
Temperature of Iron tip
Soldering Iron Wattage
Diameter of Iron tip
Soldering Time
Caution
V2.0g1.25mm 3.2g1.6mm
300˚C max. 270˚C max.
20W max.
φ 3.0mm max.
3 sec. max.
Do not allow the iron tip to directly
touch the ceramic element.
Infrared Reflow Soldering Conditions
(Example)
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220 to 230D
Within 10 sec.
∆T
200D
Pre-heating
60 sec. min.
Within120 sec. Within 20 sec.
Temperature (D)
Vapor Reflow Soldering (VPS)
Conditions (Example)
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∆T
Pre-heating
60 sec. min.
Within120 sec. Within 20 sec.
215
D
Temperature(D)
Dip Soldering/Soldering Iron
Conditions (Example)
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∆
T
Pre-heating
60 to 120 sec. Within 20 sec.
Temperature (D)
Flow Soldering Conditions
(Example)
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∆
T
Pre-heating
60 to 120 sec. Within 5 sec.
230 to 240D
Temperature (D)
Continued from the preceding page.
!Caution
140
21
!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 approve our product specifications or transact the approval sheet for product specifications before ordering.
Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and 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 specifications or to transact the approval sheet for product specificaions before ordering.
!Note C02E10.pdf 04.1.20