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The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.
Please note that this cross reference is based on TOSHIBA's estimate of compatibility with other manufacturers' products, based on other manufacturers' published data, at the time the data was collected.
TOSHIBA is not responsible for any incorrect or incomplete information. Information is subject to change at any time without notice.
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1. 当是双极晶体管拧至电路板上时,不要过度拧紧器件。当拧紧带螺丝攻的器件时需要特别小心。根据螺丝和电动螺丝刀的倾斜角度,在拧紧的最后几个旋转过程中,巨大的应力会损坏器件的模具树脂。为避免这一问题,应使用带有扭矩控制的螺丝刀。
2. 另外,考虑最差操作条件下所必要的散热性能,以便选择具有足够热阻的散热器。按需要,考虑使用风扇或类似设备进行强制冷却。
3. 使用与孔径尺寸匹配的螺丝。
4. 关于硅胶和其它绝缘散热片的信息,请联系树脂制造商
涂抹硅导热脂,可以进一步改善散热性(即降低热阻)。
5. 散热器安装平面时应尽可能平整。如果表面不平整,可能使得器件遭受过大的应力,并在最坏的操作条件下发生永久性损坏。最常使用的散热器采用铝或铜制造而成,两者均具有卓越的导热性能。
6. 当散热器安装到器件后,不要对其施加任何机械应力。
除非是隔离器件,散热器将与集电极端子具有相同的电势。因此,需要对散热器进行隔离处理。
有关散热器的设计,请参见Bipolar Transistor Application Note: Thermal Stability and Thermal Design。有关散热器的附件,请参见应用说明Power MOSFET Thermal Design and Attachment of a Thermal Fin.
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