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Summary of Contents for Fuji Electric PrimePACKTM M271
- Page 1 Fuji Industrial IGBT Module PrimePACK (M271, M272, M291, M404) Mounting Instruction Note) PrimePACK is a registered trademark of Infineon Technologies. Jun. 2025 MT5Q01780e © Fuji Electric Co., Ltd. All rights reserved.
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Page 2: Table Of Contents
2-4. Screw fastening to heat sink 3. Bus bar connection 3-1. Maximum allowable strength and application direction when mounting bus bar 3-2. Bus bar connection 4. Warning 5. Storage and transportation notes Appendix: Stencil mask drawing MT5Q01780e © Fuji Electric Co., Ltd. All rights reserved. -
Page 3: Scope Of Application
1MBIxxxxVXA-170xx-xx 2MBIxxxxXXF120x-xx 2MBIxxxxXXF170-xx X-series 2MBIxxxxXXB120x-xx 2MBIxxxxXXB170-xx M272 2MBIxxxxVXB-120x-xx 2MBIxxxxVXB-170x-xx V-series 1MBIxxxxVXB-120xx-xx 1MBIxxxxVXB-170xx-xx 2MBIxxxxXXG120x-xx M291 X-series 2MBIxxxxXXG170-xx 2MBIxxxxXRXG120-xx 4MBIxxxxVx-120Rx-xx M404 V-series 4MBIxxxxVx-170Rx-xx 4MBIxxxxVx-120-xx Note) PrimePACKTM is a registered trademark of Infineon Technologies. MT5Q01780e © Fuji Electric Co., Ltd. All rights reserved. -
Page 4: Mounting To Heat Sink
Table 2 Surface conditions of heat sink Base plate size Surface flatness of heat sink Heat sink surface roughness(R 172mm × 89mm ≦30μm ≦10μm M271 250mm × 89mm ≦50μm ≦10μm M272,M291,M404 MT5Q01780e © Fuji Electric Co., Ltd. All rights reserved. - Page 5 (b) In the case of concave shape Thermal grease Base plate size application surface surface roughness Heat sink (c) In the case of both shapes exist Fig.1 Heat sink surface flatness and roughness MT5Q01780e © Fuji Electric Co., Ltd. All rights reserved.
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Page 6: Application Of Thermal Grease
Fuji Electric confirmed that the spreading which is not a problem in actual use using ELECTROLUBE's HTC thermal grease with our specified stencil masks and heat sinks of the shape described in our specifications. - Page 7 Table 4 Typical characteristics of HTC thermal grease and recommended thickness Unit Value Viscosity (23deg.C, 1RPM) Pa・s 202 ~ 205 * Thermal conductivity W/m・K 0.9 * μm Average thickness after spreading 100 +/- 30 * Excerpt from HTC Technical Data Sheet MT5Q01780e © Fuji Electric Co., Ltd. All rights reserved.
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Page 8: Screw Fastening To Heat Sink
2. Perform final tightening in the same sequence as temporary tightening. The final tightening torque should be within 3.0 – 6.0N・m. Fuji Electric conducts quality verification using the following screws and washers. • M5 bolt with built-in washer, Strength class 10.9 with black oxide film... -
Page 9: Bus Bar Connection
Table 5 Allowable strength and application direction Application direction Strength * ±100N ±100N 100N 500N ±20N ±20N 200N * Strength in the table indicates the mechanical capability for a short period during mounting process. MT5Q01780e © Fuji Electric Co., Ltd. All rights reserved. -
Page 10: Bus Bar Connection
Screw size Tightening Tightening to heat sink 3.0 - 6.0 N・m torque Spring washer Screw Washer screw length Bus bar Main terminal Fig. 6 Definition of screw length (example of main terminal) MT5Q01780e © Fuji Electric Co., Ltd. All rights reserved. -
Page 11: Warning
(9) Clearance distance and creepage distance of this product are designed for adapting use environment in 2000m sea level or below, Fuji Electric Co., Ltd. is not responsible for the use in an environment where the altitude exceeds 2000m above sea level or in an environment where the atmospheric pressure is similarly low. - Page 12 (a) Through hole position (M271) 1 through hole (b) Through hole position (M272) 1 through hole (c) Through hole position (M291) 1 through hole (d) Through hole position (M404) Fig.7 Through hole position MT5Q01780e © Fuji Electric Co., Ltd. All rights reserved.
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Page 13: Storage And Transportation Notes
(1) Do not drop or cause impact to the modules which could otherwise cause mechanical stress. (2) When transporting several modules in the same box or container, provide sufficient ESD padding between the modules to protect the terminals and to keep the modules from shifting. MT5Q01780e © Fuji Electric Co., Ltd. All rights reserved. -
Page 14: Appendix: Stencil Mask Drawing
Appendix : Stencil mask drawing Stencil mask drawing for thermal grease application (recommended) If you would like to obtain the following data, please contact our sales department. Type A (M271) t=0.25mm Type B (M272,M291,M404) t=0.25mm MT5Q01780e © Fuji Electric Co., Ltd. All rights reserved. - Page 15 June 2025. The contents are subject to change without prior notice due to changes in product specifications or for other reasons. When using a product described in this manual, please obtain the product’s latest specification and check the data. MT5Q01780e © Fuji Electric Co., Ltd. All rights reserved.
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