IPC-TM-650 EN 2022 试验方法1.pdf - 第643页

Class A Class B Step T emp. (°C) Time (Min.) T em p. (°C) Time (Min.) 1 125+3/–0 30 85 +3/–0 30 2 25+10/–5 10–15 25+10/–5 10–15 3 –65+0/–5 30 –55+0/–5 30 4 25+10/–5 10–15 25+10/–5 10–15 Page 1 of 1

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Class A Class B
Step
Temp.
(°C)
Time
(Min.)
Temp.
(°C)
Time
(Min.)
1 125+3/–0 30 85+3/–0 30
2 25+10/–5 10–15 25+10/–5 10–15
3 –65+0/–5 30 –55+0/–5 30
4 25+10/–5 10–15 25+10/–5 10–15
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