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M0FYA Andy · 11th May 2019, 2:33 pm

A question for those familiar with modern solid-state components.

Can anyone advise whether there are any devices readily available which are electrically identical to the IRFP240 (N-channel) and IRFP-9240 (P-channel) power MOSFETS, but which are packaged in a way which gives superior heat-transfer from the device to a heatsink. These two devices are in TO-247AC packages, where the thermal path is only via a small metal annulus surrounded by plastic, including plastic around the single mounting screw. Interestingly the device data-sheets refer to them being mounted 'on a flat, greased surface', with no mention of an electrical insulating pad.

Many thanks,

Andy

11th May 2019, 2:33 pm	#1
M0FYA Andy Nonode Join Date: May 2007 Location: Preston, Lancashire, UK. Posts: 2,511	Power MOSFETs A question for those familiar with modern solid-state components. Can anyone advise whether there are any devices readily available which are electrically identical to the IRFP240 (N-channel) and IRFP-9240 (P-channel) power MOSFETS, but which are packaged in a way which gives superior heat-transfer from the device to a heatsink. These two devices are in TO-247AC packages, where the thermal path is only via a small metal annulus surrounded by plastic, including plastic around the single mounting screw. Interestingly the device data-sheets refer to them being mounted 'on a flat, greased surface', with no mention of an electrical insulating pad. Many thanks, Andy