IRFP240PBF - lead free?

imlulu · 27th July 2006, 06:24 PM

Is IRFP240PBF the same as IRFP240? The data sheet says lead free. What does it mean?

richie00boy · 27th July 2006, 06:28 PM

It means soldered etc inside using leadfree solder, and is compatible with use in leadfree systems. RoHS and WEEE and all that.

flg · 28th July 2006, 12:27 AM

Ussually the die are wire bonded which is an "acoustic welding" raz ma taz, with a gold based wire, but, the leads are "tined". This "tin plateing" process used lead which is now, non-rohs compliant! The "tining" will now contain no lead and more tin, maybe gold, but I doubt it! Maybe silver... When using lead free solder you generally need more heat. It generally dosen't look as "nice" either, kinda frosty looking... Look at your suppliers carefully, personally I don't care about lead, some non-rohs cmpliant items, like IRFP240s can be found at reduced prices

imlulu · 28th July 2006, 06:41 AM

Thank you

27th July 2006, 06:24 PM	#1
imlulu diyAudio Member Join Date: Jun 2003 Location: Hong Kong	IRFP240PBF - lead free? Is IRFP240PBF the same as IRFP240? The data sheet says lead free. What does it mean?

27th July 2006, 06:28 PM	#2
richie00boy Did it Himself diyAudio Member Join Date: Nov 2003 Location: Gloucestershire, England, UK	It means soldered etc inside using leadfree solder, and is compatible with use in leadfree systems. RoHS and WEEE and all that. __________________ www.readresearch.co.uk my website for UK diy audio people - designs, PCBs, kits and more

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28th July 2006, 12:27 AM	#3
flg diyAudio Member Join Date: Jul 2005 Location: North East	Ussually the die are wire bonded which is an "acoustic welding" raz ma taz, with a gold based wire, but, the leads are "tined". This "tin plateing" process used lead which is now, non-rohs compliant! The "tining" will now contain no lead and more tin, maybe gold, but I doubt it! Maybe silver... When using lead free solder you generally need more heat. It generally dosen't look as "nice" either, kinda frosty looking... Look at your suppliers carefully, personally I don't care about lead, some non-rohs cmpliant items, like IRFP240s can be found at reduced prices

28th July 2006, 06:41 AM	#4
imlulu diyAudio Member Join Date: Jun 2003 Location: Hong Kong	Thank you

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