MT5F22233b
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23
(a) Screw tightening torque and screw tightening sequence (
M721, M647)
Tightening torque
Tightening sequence
Temporary tightening
0.5N
・
m
(1)
→(2)
Final tightening
V series : 2.5
– 3.5N
・
m
X series : 2.5
– 6.0N
・
m
(1)
→(2)
(b) Screw tightening torque and screw tightening sequence (
M722, M648,
M1202)
Tightening torque
Tightening sequence
Temporary tightening
0.5N
・
m
(1)
→(2)→(3)→(4)
Final tightening
V series : 2.5
– 3.5N
・
m
X series : 2.5
– 6.0N
・
m
(1)
→(2)→(3)→(4)
Fig.13 Screw tightening torque and screw tightening sequence
(1)
(2)
(4)
(3)
(1)
(2)
3-3. Screw tightening the module to heat sink
This section describes how to tighten the screws when mounting the module to heat sink.
1. Use M5 screws to fix the module to heat sink.
2. To fix the module with even force, first perform temporary tightening with 0.5N
・
m. Fig.13 shows
the tightening sequence.
3. Perform final tightening in the same sequence as temporary tightening. The final tightening
torque should be within the maximum ratings.