EEVblog Electronics Community Forum
Electronics => Repair => Topic started by: FizZzyCap on August 18, 2018, 07:08:39 pm
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Hi. Would like help in finding a similar capacitor that would replace one on a gpu (GeForce 7300LE 256MB pci-e ddr2) for a pc. The capacitor brand and specs are kzg 16v 470uf. The closest or might be the same capacitor i could find is https://www.ebay.com/itm/10pcs-470uF-16V-NCC-KZG-Super-Low-ESR-16V470uF-Motherboard-Capacitor-8x11-5mm-/173274684410 (https://www.ebay.com/itm/10pcs-470uF-16V-NCC-KZG-Super-Low-ESR-16V470uF-Motherboard-Capacitor-8x11-5mm-/173274684410) , but it read 1(7) 5K and gpu capacitor read 6(k) 8P. Im to novice to know if that have any meaning.
Thanks in advance for responces.
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Don't buy Nippon Chemi-con KZG. Although it's a reputable manufacturer, KZG and KZJ series were bad. Also don't buy capacitors from ebay/China. Most from remotely reputable brand is counterfeit.
but it read 1(7) 5K and gpu capacitor read 6(k) 8P.
You should not bother abut date code or lot number. You should care about capacitance, voltage and ESR being not higher than original (from datasheet). http://www.nfjapan.com/datasheet/KZG.pdf (http://www.nfjapan.com/datasheet/KZG.pdf)
EDIT: you actually could buy KZG given they are from fresh stock (from reputable distribuitor), as problems should be already fixed by now.
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Thank for responce.
I have a hard time finding a number associated with esr for the cap that needs replacement, finding only the terms "low esr or super low esr" ratings that are not very helpful when comparing to new caps. Do you know what that number might be?
Did find these https://eu.mouser.com/Passive-Components/Capacitors/Aluminum-Electrolytic-Capacitors/Aluminum-Electrolytic-Capacitors-Radial-Leaded/_/N-75hqw?P=1z0wrk5Z1yx4aw3Z1z0vn3uZ1z0vhz5Z1yzxe9eZ1z0wl9o (https://eu.mouser.com/Passive-Components/Capacitors/Aluminum-Electrolytic-Capacitors/Aluminum-Electrolytic-Capacitors-Radial-Leaded/_/N-75hqw?P=1z0wrk5Z1yx4aw3Z1z0vn3uZ1z0vhz5Z1yzxe9eZ1z0wl9o) that looks to be good based on range of low esr that mouser.com offers. Any opinion if one of those caps would be work would be to great help.
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> "low esr or super low esr" ratings that are not very helpful
thats very helpful, tells you its used in DC-DC converter and needs lowESR cap
original datasheets http://media.digikey.com/PDF/Data%20Sheets/United%20Chemi-Con%20PDFs/KZG%20Series_WEB.pdf (http://media.digikey.com/PDF/Data%20Sheets/United%20Chemi-Con%20PDFs/KZG%20Series_WEB.pdf)
36 mOhm
almost anything from https://www.digikey.com/products/en/capacitors/aluminum-polymer-capacitors/69?k=&pkeyword=&pv724=5&pv724=6&pv724=7&pv724=8&pv724=9&pv724=11&pv724=1844&pv724=13&pv724=14&pv724=22&FV=1140050%2Cmu470µF|2049%2Cmu16V|2079%2Cffe00045&quantity=0&ColumnSort=1000011&page=1&pageSize=25 (https://www.digikey.com/products/en/capacitors/aluminum-polymer-capacitors/69?k=&pkeyword=&pv724=5&pv724=6&pv724=7&pv724=8&pv724=9&pv724=11&pv724=1844&pv724=13&pv724=14&pv724=22&FV=1140050%2Cmu470µF|2049%2Cmu16V|2079%2Cffe00045&quantity=0&ColumnSort=1000011&page=1&pageSize=25) will work