Imac capacitor help

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • thenoicer
    New Member
    • Jun 2018
    • 3
    • Sweden
    #1

    Imac capacitor help

    Help with capacitors

    Help with capacitors

    Hey, im fixing a imac logic board that has a damaged capacitor. The original capacitor says: 947 Sepc 270 16. I have looked through board viewer and traced it to the correct values: 270uf, 16v. Just as the original capacitor says. I cant find a direct replacement online for this capacitor. I have 239 Sepc 270 16 capacitors laying around, and compared to the original it's smaller. But is also 16v, 270uf. Can i replace it with this one? I cant really find specifications for them. Thanks
    Tags: None
    • stj
      Great Sage 齊天大聖
      • Dec 2009
      • 31304
      • Albion
      #2
      Re: Imac capacitor help

      SEPC is an early polymer cap from sanyo,
      nichicon , panasonic and kemet among others also make good polymers

      the other number doesnt mean anything really, just gonna be a batch/date code

        Comment

        • momaka
          master hoarder
          • May 2008
          • 12175
          • Bulgaria
          #3
          Re: Imac capacitor help

          Originally posted by thenoicer
          Hey, im fixing a imac logic board that has a damaged capacitor. The original capacitor says: 947 Sepc 270 16. I have looked through board viewer and traced it to the correct values: 270uf, 16v. Just as the original capacitor says. I cant find a direct replacement online for this capacitor. I have 239 Sepc 270 16 capacitors laying around, and compared to the original it's smaller. But is also 16v, 270uf. Can i replace it with this one? I cant really find specifications for them. Thanks
          Should work fine.

          SEPC = Sanyo SEPC polymer capacitor series.
          Datasheet here:
          Code:
          http://www.paullinebarger.net/DS/Sanyo/Sanyo [polymer thru-hole] SEPC Series.pdf
          (Copy and paste link into browser. Can't direct-link, because the square brackets upset the forum's auto-URL code.
          Last edited by momaka; 09-25-2023, 12:22 PM.

            Comment

            Previous template Next

            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...
              RTX 2070 SUPER
              11 Photos
              09-18-2025, 12:14 PM
            • LaPCon_IT
              iMac A2438, destroyed capacitor and coil.
              by LaPCon_IT
              Hi people.
              iMac A2438, board 820-02009-06. Some insect has killed itself destroying capacitor and coil next to it. No chance for buying donor board, so I'm asking you for help about values of destroyed components.
              1 Photo
              03-16-2024, 09:32 AM
            • devsigner
              identify capacitor for MacBook Pro with rare logic board 820-02037-06
              by devsigner
              Hi

              While messing around with my MacBook Pro, I stupidly pinged off a very small surface mounted component that I’m now trying to identify.
              resistance tests show a rising resistance value, indicating a capacitor.

              The laptop boots up and runs, however I'm choosing not to use it until I get it fixed.

              i can’t see any markings on the capacitor at 10x magnification using a professional jewler's loop.

              It seems like there's some damage to the capacitor - one side doesn't have "shiny bits" - can you tell I don't do this for a living!...
              5 Photos
              Yesterday, 01:39 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
            • Agent24
              Dick Smith Q-1760 linear power supply filter capacitor question
              by Agent24
              I have acquired a used Dick Smith Q-1760 power supply - although the OEM is Manson Industrial
              It has at least one problem.

              The voltage control potentiometer VR2, 50K is faulty - going high resistance / open circuit in the CCW end and leading to the output voltage jumping around.
              I have already ordered a replacement potentiometer, so that's not an issue.

              Now, I want to replace all three electrolytics on the PCB as they are CapXon and I don't trust them so much, I will replace them with something better while I've got the thing apart anyway.
              All are CapXon...
              10-21-2025, 05:39 PM
            • Loading...
            • No more items.
            Working...