STK5C4U332J-E

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11

Mounting Instructions

Item

Recommended Condition

Pitch

26.0 ±0.1 mm (Please refer to Package Outline Diagram)

Screw

Diameter : M3

Screw head types : pan head, truss head, binding head

Washer

Plane washer dimensions (Figure 14)

D = 7 mm, d = 3.2 mm and t = 0.5 mm JIS B 1256

Heat sink

Material: Aluminum or Copper

Warpage (the surface that contacts IPM ) :

50 to 50 μm

Screw holes must be countersunk.

No contamination on the heat sink surface that contacts IPM.

Torque

Temporary tightening : 50 to 60% of final tightening on first screw

Temporary tightening : 50 to 60% of final tightening on second screw

Final tightening : 0.4 to 0.6 Nm on first screw

Final tightening : 0.4 to 0.6 Nm on second screw

Grease

Silicone grease.

Thickness : 50 to 100 μm

Uniformly apply silicone grease to whole back.

Thermal foils are only recommended after careful evaluation. Thickness, stiffness and

compressibility parameters have a strong influence on performance.

Figure 14: Module Mounting details: components; washer drawing; need for even spreading of thermal grease

Recommended

Notrecommended

Siliconegrease