Information

How to Solder Repair by Solder Iron
1) Selection of the soldering iron tip
The required temperature of soldering iron for any type of repair depends on the type of the tip, the
substrate material, and the solder land size.
2) recommended solder iron condition
a.) Preheat the substrate to (60 C to 120 C) on a hot plate. Note that due to the heat loss,
the actual setting of the hot plate may have to be higher. (For example 100 C to 150 C)
b.) Soldering iron power shall not exceed 30 W.
c.) Soldering iron tip diameter shall not exceed 3mm.
d.) Temperature of the iron tip shall not exceed 350
C, and the process should be finished
within 5 seconds. (refer to MIL-STD-202G)
e.) Do not touch the ceramic body with the tip of solder iron. Direct contact of the soldering iron tip
to ceramic body may cause thermal cracks.
f.) After soldering operation, let the products should be allowed to cool down naturally in air.
Store the capacitors where the temperature and relative humidity do not exceed 40 C and 70%RH.
We recommend that the capacitors be used within 12 months from the date of manufacturing. Store
the products in the original package and do not open the outer polyethylene bag until just before
usage. If it is open, seal it as soon as possible or keep it in a desiccant with a desiccation agent.
3. Hand Soldering
Sudden temperature changes in ceramic capacitors will result in a temperature gradient within the
component and therefore may cause internal thermal cracking. In general a hand soldering method is not
recommended unless proper preheating and handling practices have been taken. Care must also be
taken not to touch the ceramic body of the capacitor with the tip of solder Iron. The soldering iron tip
should always be placed on to the solder pad.
Soldering Method Change in Temp.(
)
1206 and Under
∆T ≤150
1210 and Over
∆T ≤130
∆T
Temperature (°C)
200
250
350
Within 5 seconds.
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Precautionary Information
Holy Stone
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