Eaton
Electronics Division
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United States
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Printed in USA
Publication No. 4378 BU-MC20073
April 2020
Technical Data 4378
Effective April 2020
42510ESDA-TR1
Four channel ultra low capacitance ESD Suppressor
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approval of an officer of the Company. Life support systems are devices which support or sustain life, and whose failure to perform, when properly used
in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user.
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reserves the right to change or update, without notice, any technical information contained in this bulletin.
Solder reflow profile
Temperature
t
tP
ts
TC -5°C
Time 25°C to Peak Time
°C
Tsmin
Tsmax
TL
TP
Preheat
Max. Ramp Up Rate = 3°C/s
Max. Ramp Down Rate = 6°C/s
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Reference J-STD-020
Profile feature Standard SnPb solder Lead (Pb) free solder
Preheat and soak • Temperature min. (Tsmin)100 °C 150 °C
• Temperature max. (Tsmax)150 °C 200 °C
• Time (Tsmin to Tsmax) (ts)60-120 seconds 60-120 seconds
Ramp up rate TL to Tp3 °C/ second max. 3 °C/ second max.
Liquidous temperature (Tl)
Time (tL) maintained above TL
183 °C
60-150 seconds
217 °C
60-150 seconds
Peak package body temperature (TP)* Table 1 Table 2
Time (tp)* within 5 °C of the specified classification temperature (Tc)20 seconds* 30 seconds*
Ramp-down rate (Tp to TL)6 °C/ second max. 6 °C/ second max.
Time 25 °C to peak temperature 6 minutes max. 8 minutes max.
* Tolerance for peak profile temperature (Tp) is defined as a supplier minimum and a user maximum.
Table 1 - Standard SnPb solder (Tc)
Package
thickness
Volume
mm3
<350
Volume
mm3
≥350
<2.5 mm) 235 °C 220 °C
≥2.5 mm 220 °C 220 °C
Table 2 - Lead (Pb) free solder (Tc)
Package
thickness
Volume
mm3
<350
Volume
mm3
350 - 2000
Volume
mm3
>2000
<1.6 mm 260 °C 260 °C 260 °C
1.6 – 2.5 mm 260 °C 250 °C 245 °C
>2.5 mm 250 °C 245 °C 245 °C