10

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FNA41560/B2 Rev. C

Mechanical Characteristics and Ratings

Figure 9. Flatness Measurement Position

Note:

9. Do not make over torque when mounting screws. Much mounting torque may cause ceramic cracks, as well as bolts and Al heat-sink destruction.

10. Avoid one side tightening stress. Fig.10 shows the recommended torque order for mounting screws. Uneven mounting can cause the SPM ceramic substrate to be damaged.

The Pre-Screwing torque is set to 20~30% of maximum torque rating.

Figure 10. Mounting Screws Torque Order

Parameter

Conditions

Limits

Units

Min.

Typ.

Max.

Device Flatness

Note Figure 9

0

-

+120

mm

Mounting Torque

Mounting Screw: - M3

Note Figure 10

Recommended 0.7N•m

0.6

0.7

0.8

N•m

Recommended 7.1kg•cm

6.2

7.1

8.1

kg•cm

Weight

-

11

-

g

1

2

Pre - Screwing : 1→2

Final Screwing : 2→1

1

2

Pre - Screwing : 1→2

Final Screwing : 2→1