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CIAA-FSL and CIAA-NXP: Input PTC should be replaced. #57

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nscotti opened this issue Jun 2, 2015 · 2 comments
Open

CIAA-FSL and CIAA-NXP: Input PTC should be replaced. #57

nscotti opened this issue Jun 2, 2015 · 2 comments

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@nscotti
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nscotti commented Jun 2, 2015

MF-SM300 (TH1101 in CIAA-FSL, TH1 in CIAA-NXP) should be replaced by another PTC because of the VDC parameter. VDC should be greater than 24 V.
One option is use the Littelfuse part number 1812110/33 (http://www.littelfuse.com/~/media/electronics/datasheets/resettable_ptcs/littelfuse_ptc_1812l_datasheet.pdf.pdf). This part number is already used in CIAA-FSL board. The footprint is smaller but is the best option for not adding a new component.
Another option is use a Bourns part number with the same size of MF-SM300: MF-SM100 (http://www.bourns.com/data/global/pdfs/mfsm.pdf).

@pridolfi
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pridolfi commented Jun 2, 2015

We need to check all PTCs, VDC parameter seems to be wrong. :-(

@pridolfi
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