Chengdu Ebyte Electronic Technology Co., Ltd.
E29-400TXXX product data sheet
Copyright ©2012–2023
,
Chengdu Ebyte Electronic Technology Co.,Ltd.
27
Chapter 13 Welding Work Instructions
13.1 Reflow soldering temperature
Reflow Soldering Profile Characteristics
Sn-Pb Assembly
Pb-Free Assembly
Preheat/keep
warm
Min. Temperature
(
Tsmin
)
100℃
150℃
Max. Temperature
(
T
smax
)
150℃
200℃
Time
(
T
smin
~T
smin
)
60-120s
60-120s
Average ramp-up rate
(
T
L
~T
p
)
3℃/s, Maximum
3℃/s, Maximum
Liquidous Temperature
(
T
L
)
183℃
217℃
Time
(
tL
)
Maintained Above
60~90s
60~90s
Package peak temperature T
p
Should not exceed the
temperature indicated on the
product's label of "Moisture
Sensitivity".
Should not exceed the
temperature indicated on the
product's label of "Moisture
Sensitivity".
The time (Tp) within 5°C of the specified
classification temperature (Tc), see the
figure below
20s
30s
Aveage ramp-down rate
(
T
p
~T
L
)
6℃/s, Maximum
6℃/s, Maximum
Time from 25
℃
to peak temperature
6min
,
Maximum
8min
,
Maximum
※The peak temperature (Tp) tolerance definition of the temperature profile is an upper limit for the user