pm75cs1d120 Mitsumi Electronics, Corp., pm75cs1d120 Datasheet - Page 16

• Manufacturer Part Number: pm75cs1d120
• Description: Mitsubishi Ipm L1/s1-series Application Note Igbt Modules
• Manufacturer: Mitsumi Electronics, Corp.

Mounting
("one side tightening ") is applied at only one mounting terminal, since stress is applied on a ceramic
plate and silicon chips inside the module. Shown in following figure is the recommended torquing
order for mounting screws.
follows. Also, the surface finish should be less than Rz12s.
for the best heat dissipation.)
base plate modules: 100 m
kind of grease that has a stable characteristic over the whole operating temperature range and
does not change its properties for several years.
torque. Excessive torquing may result in damage or degradation of a device.
When mounting a module on a heat sink, a device could get damage or degrade if a sudden torque
Also, care must be taken to achieve maximum contact (i.e. minimum contact thermal resistance)
Thermal compound with good thermal conductivity should be applied evenly about Aluminum
Heat sink flatness: Less than ± 20 micrometers on a length of 100mm
Thermal grease thickness: +50
Grease on the contact surface prevents the corrosion of the contact surface. However, use the
A torque wrench shall be used in tightening mounting screws and tighten screws to the specified
The flatness of a heat sink where a module is mounted (ref. following figure) should be as
Temporary tightening :
Final tightening :
Copper base plate module: 100 m
*:Temporary tightening torque should be set at 20 30
a) Two point mounting type
Correct and Safety Use of Power Module
/Less than 10 micrometers of roughness
The recommended torquing order for mounting screws
The edge line of base plate
Grease applied area
200 m on the contact surface of a module and a heat sink.
100 m
b) four point mounting type
Cautions
Heat Sink Flatness
16
100 m
Specified range of
Power Module
of maximum rating.
heat sink flatness
Convex
Concave
c) eight point mounting type
Sep. 2008