Asakawa capacitor

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • trodas
    Badcaps Veteran
    • Jan 2006
    • 770
    • Czech republic

    #1

    Asakawa capacitor



    Anyone ever seen a Asakawa capacitor? Good, bad...?

    I find it in my old alarm clock. Like a 5 days ago it reset itself, and there days before today it stoped working completely. It kick back again after I pulled the power plug and waited long time before I power on it back again.
    So diassembled, measured 14,8 - 15V on the cap and replaced with Samxon GK 220uF 16V d8 I have few spare d8 ones before they are available in d6.3 ... Alarmclock is up and working again well, but the cap looking like a new one. Could it be the culprit? I find that hard to believe, but...

    Anyone ever come accross this Asakawa cap? And your experience?
    "It is dangerous to be right in matters on which the established authorities are wrong." - Voltaire
    "I believe that all the people who stand to profit by a war and who help provoke it should be shot on the first day it starts..." - Hemingway my config - my caps

Related Topics

Collapse

  • MORETTIGIAN
    Capacitor detached from PCB – RTX 2070 Super Founders Edition
    by MORETTIGIAN
    Title:
    Capacitor detached from PCB – RTX 2070 Super Founders Edition

    Description:
    During maintenance on an RTX 2070 SUPER Founders Edition, I found a capacitor lying on my desk after reassembly.
    I did not notice it detaching, so I am unsure of its original location on the PCB.

    Procedure performed:
    - Removed backplate
    - Cleaned heatsink and PCB with isopropyl alcohol + soft ESD brush
    - Reapplied thermal compound
    - Reassembled card

    Observed behavior after reassembly:
    - GPU powers on and operates normally under...
    09-18-2025, 12:14 PM
  • Prolog
    RTX 3080 FE Identifying capacitor
    by Prolog
    Hi people, I hope this is the correct spot to post this, I'm new to the forum.

    I have an RTX 3080 Founders Edition which has a burnt up capacitor (it was in parallel with another capacitor which appears damaged too), so I am hoping to be able to identify the capacitor values and order replacements.

    I hope these photos make it clear which component I am referring to:
    (yes, the soldering is a bit botched from removing the blown one, I know)

    I have found the board schematic (attached), but there does not seem to be a boardview available. I have never...
    12-01-2024, 08:27 PM
  • chth96
    If I replace with inferior capacitor, Is it No harm to other IC components at all?
    by chth96
    I replaced some capacitor which is located on optical pickup pcb which is shown in the table below(PCB #2).Because it have been out of order.
    Now,It works very well,But I just have found that all caps (6svpc100my and other part number as well) ,which is shown in the table below, has ultra-high ripple current spec.
    It is not able to obtain any capacitor which can be a substitute for this ultra-high ripple current nichicon capacitor.
    So I replaced it with samxon and rubycon's general capacitor(GP,YXA series).
    I know that these capacitor will not last as long as nichicon capacitor...
    12-22-2023, 04:34 AM
  • chth96
    How can I test non-polarized capacitor?
    by chth96
    I desoldered samwha NF capacitor(50v 5.6uf) from PCB circuit of 29inch CRT TV which have symptoms of no display after I heard sound of inrush of current to TV whenever I switch on this television.
    I measured ESR value of this non-polarized capacitor(samwha NF capacitor 50v 5.6uf) by means of MESR-100 ESR meter and It displayed 0.3 ohm

    And When I measured its capacitance with digital multimeter and LCR-T4 Mega328 meter, It displayed 10uf from DMM and 8uf from LCR-T4 meter.
    I found catalogue of samwha capacitor(samwha-catalogue_3.pdf file), which is attached to this thread,...
    06-02-2024, 07:31 PM
  • chth96
    Is it no harm to replace with capacitor without ripple current rating?
    by chth96
    When I tried to repair LG 29 inch CRT TV, I found that the ESR value of samyoung SMS capacitor(160v 2.2uf), which is very close to D1879 transistor, is 6 ohm.


    Judging from above ESR Meter Table,I think It is necessary to replace this sms capacitor.So I visited local electronics shop,and I purchased 160v 2.2uf rubycon YK capacitor.
    But when I browse through rubycon YK datasheet,I found that there is no ripple current rating for 160v 2.2uf specification. But On the contrary, I found 39 mA ripple current rating for 160v 2.2uf SMS capacitor.
    Rubycon YK DataSheet (b...
    04-19-2024, 05:19 AM
  • Loading...
  • No more items.
Working...