kia79l05f Korea Electronics (KEC GROUP), kia79l05f Datasheet - Page 14

• Manufacturer Part Number: kia79l05f
• Description: Three Terminal Negative Voltage Regulators
• Manufacturer: Korea Electronics (KEC GROUP)

1997. 3. 26
PRECAUTIONS FOR USE
SOLDERING
Flat Package (SOT-89 Package)
are all the more expanding in varieties. Especially, surface mounting is steadily penetrating into industrial segments as a world-wide
popular technical trend. Although exposure to high temperature is inevitable during soldering we recommend limiting the soldering
temperature to low levels as shown in figure for the sake of retaining inherent excellent reliability.
(a) When employing solder reflow method
(b) When employing halogen lamps or infrared-ray heaters
Elements mounting styles of electronic devices are gaining in further diversification over recent years, and needs for components
Please keep a reflow solder operating when SOT-89 package's soldering.
When halogen lamps or infrared-ray heaters are used, avoid direct irradiation onto resin surfaces ;
such devices cause extensive localized temperature rise.
Atmospheric temperature around resin surfaces must be less than 240 , not exceeding the time length of 10 sec.
Recommend temperature profile
Precautions on heating method
When resin in kept exposed to high temperature for a long time, device reliability may be marred.
Therefore, it is essential to complete soldering in the shortest time possible to prevent temperature of resin from rising.
Revision No : 2
KIA79L05F~KIA79L24F
240
210
150
60 sec.
Within 30 sec.
Fig 6
Within 10 sec.
Time (sec.)
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