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Business > Industrial Devices > Automation Controls Top > Components & Devices > Relays / Couplers > Power Relays (Over 2A) > Power Relays (Over 2A) Lineup > DW Relays > Cautions For Use
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(1) Preheating: within 120°C 248°F (solder surface terminal portion) and within 120 seconds
(2) Soldering iron: 260°C±5°C 500°F±41°F (solder temperature) and within 6 seconds (soldering time)
* Furthermore, because the type of PC board used and other factors may influence the relays, test that the relays function properly on the actual PC board on which they are mounted.
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• Cautions to observe when mounting temperature increases in the relay are greatly dependent on the way different parts are located a PC board and the heating method of the reflow device.
Therefore, please conduct testing on the actual device beforehand after making sure the parts soldered on the relay terminals and the top of the relay case are within the temperature conditions given above.
It is not allowed to apply the continuous maximum voltage to the coil.
In order to obtain the specified performance, please apply nominal coil voltage.
Regarding the set/reset pulse time of the latching type relay, it is recommended to apply nominal coil voltage for minimum 30ms pulse across the coil to secure the sure operation considering the ambient temperature and condition change through service life.
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