IPC-TM-650 EN 2022 试验方法1.pdf - 第688页
IPC-D-275 NOTE: Page 1 of 2
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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IPC-D-275
NOTE:
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Table 1
Step
Test Condition A Test Condition B Test Condition C
Temperature Time Temperature Time Temperature Time
1
2
3
4
0, +0/-5
25, +10/-5
+70, +5/-0
25, +10/-5
15
0
15
0
-40, +0/-5
25, +10/-5
+85, +5/-0
25, +10/-5
15
0
15
0
-55, +0/-5
25, +10/-5
+105, +5/-0
25, +10/-5
15
0
15
0
Step
Test Condition D Test Condition E Test Condition F
Temperature Time Temperature Time Temperature Time
1
2
3
4
-55, +0/-5
25, +10/-5
+125, +5/-0
25, +10/-5
15
0
15
0
-65, +0/-5
25, +10/-5
+150, +5/-0
25, +10/-5
15
0
15
0
-65, +0/-5
25, +10/-5
+170, +5/-0
25, +10/-5
15
0
15
0
Tolerance shall be +2 and -0 minutes.
Table 2
Rigid Type NEMA Test Condition
A
GP, GT, GX, GY B
GE C
AF, BF, BI, CF, GF, GB D
GH, GM E
AI, GI, QI F
IPC-TM-650
Number
Subject Date
Revision
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