Stocking up on capacitors - Help Needed!

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • Ritalin
    Senior Member
    • Sep 2010
    • 194
    #1

    Stocking up on capacitors - Help Needed!

    So I recently found a local 'surplus' store that as tons of random capacitors at $0.25 each, which so far seems like a good deal, but some of the brands I haven't heard of and I know some of you guys are particular on series. I cross referenced with the list that was post on another thread of 'good capacitors' and came across some, but others I don't know about. The nice thing is that there are 4 of these stores and supposedly they have a different inventory, so I'll have to go to each one and see what they have.

    Is there any of these capacitors that I should go and buy them out cause it's that good of a capacitor? (See list in attachments)
    Attached Files
    Tags: None
    • retiredcaps
      Badcaps Legend
      • Apr 2010
      • 9271
      #2
      Re: Stocking up on capacitors - Help Needed!

      Given the low cost of digikey.com USA shipping (around $2.75 USD), 48 hour delivery of parts, wider selection (like Panasonic FR caps), I would personally order from digikey.com. You can easily burn up $2.75 in gas going to/from the store versus shipping.

      Having said that, if my local Canadian electronics store carried some of these caps for 25 cents, I would buy some of the low ESR caps like Panasonic FC because digikey shipping to Canada is $8 USD.

      Others, obviously, will have their own opinions/suggestions.
      --- begin sig file ---

      If you are new to this forum, we can help a lot more if you please post clear focused pictures (max resolution 2000x2000 and 2MB) of your boards using the manage attachments button so they are hosted here. Information and picture clarity compositions should look like this post.

      We respectfully ask that you make some time and effort to read some of the guides available for basic troubleshooting. After you have read through them, then ask clarification questions or report your findings.

      Please do not post inline and offsite as they slow down the loading of pages.

      --- end sig file ---

        Comment

        • Pyr0Beast
          Badcaps Veteran
          • Feb 2009
          • 406
          #3
          Re: Stocking up on capacitors - Help Needed!

          Useless caps for most recaps of mainboards.

            Comment

            • Ritalin
              Senior Member
              • Sep 2010
              • 194
              #4
              Re: Stocking up on capacitors - Help Needed!

              As I've stated before, I'm still new to this whole cap thing so as of right now I don't get what the difference is in series. I mainly go through 300uF/470uF/680uF/820uF at about 25V/35V/50V depending on the LCD's power board. I haven't done motherboards yet. But if you guys say they're junk, I'll trust ya. I'll probably buy a couple for older LCDs that I don't care about, but newer ones I'll just get the ones you guys say to get.

                Comment

                • Pyr0Beast
                  Badcaps Veteran
                  • Feb 2009
                  • 406
                  #5
                  Re: Stocking up on capacitors - Help Needed!

                  Depends how old they are. But given they are surplus parts, they aren't fresh out of the factory.

                    Comment

                    • retiredcaps
                      Badcaps Legend
                      • Apr 2010
                      • 9271
                      #6
                      Re: Stocking up on capacitors - Help Needed!

                      Originally posted by Ritalin
                      I don't get what the difference is in series.
                      Manufacturers like Panasonic make different "series" of caps for different applications.

                      Each series will have the same uF and voltage, but totally different ESR (ohms) and ripple characteristics.

                      SMPS applications (like a lcd power supply) require low ESR caps. Panasonic FR and FM are 2 series that are low ESR caps. Panasonic FC is low ESR, but not as low as FR and FM.

                      Other Panasonic series are general purpose caps. They have a higher ESR and/or lower ripple.

                      PCBONEZ talks about all the above at

                      https://www.badcaps.net/forum/showpo...30&postcount=7
                      --- begin sig file ---

                      If you are new to this forum, we can help a lot more if you please post clear focused pictures (max resolution 2000x2000 and 2MB) of your boards using the manage attachments button so they are hosted here. Information and picture clarity compositions should look like this post.

                      We respectfully ask that you make some time and effort to read some of the guides available for basic troubleshooting. After you have read through them, then ask clarification questions or report your findings.

                      Please do not post inline and offsite as they slow down the loading of pages.

                      --- end sig file ---

                        Comment

                        • Ritalin
                          Senior Member
                          • Sep 2010
                          • 194
                          #7
                          Re: Stocking up on capacitors - Help Needed!

                          Originally posted by retiredcaps
                          Manufacturers like Panasonic make different "series" of caps for different applications.

                          Each series will have the same uF and voltage, but totally different ESR (ohms) and ripple characteristics.

                          SMPS applications (like a lcd power supply) require low ESR caps. Panasonic FR and FM are 2 series that are low ESR caps. Panasonic FC is low ESR, but not as low as FR and FM.

                          Other Panasonic series are general purpose caps. They have a higher ESR and/or lower ripple.

                          PCBONEZ talks about all the above at

                          https://www.badcaps.net/forum/showpo...30&postcount=7
                          Is it bad that you use higher ESR caps in something like a LCD monitor? Will it fail sooner, affect performance, etc ??

                            Comment

                            • retiredcaps
                              Badcaps Legend
                              • Apr 2010
                              • 9271
                              #8
                              Re: Stocking up on capacitors - Help Needed!

                              Originally posted by Ritalin
                              Is it bad that you use higher ESR caps in something like a LCD monitor? Will it fail sooner, affect performance, etc ??
                              A cap that has too high ESR will affect the performance of the power supply. The most obvious is that the SMPS won't work at all.

                              Almost all modern consumer based electronics like TVs, lcds, dvd players, etc have a SMPS power supply.
                              --- begin sig file ---

                              If you are new to this forum, we can help a lot more if you please post clear focused pictures (max resolution 2000x2000 and 2MB) of your boards using the manage attachments button so they are hosted here. Information and picture clarity compositions should look like this post.

                              We respectfully ask that you make some time and effort to read some of the guides available for basic troubleshooting. After you have read through them, then ask clarification questions or report your findings.

                              Please do not post inline and offsite as they slow down the loading of pages.

                              --- end sig file ---

                                Comment

                                • jetadm123
                                  Badcaps Legend
                                  • Feb 2010
                                  • 2169
                                  #9
                                  Re: Stocking up on capacitors - Help Needed!

                                  You should place your orders through digikey, since they're located in the same state you're in. Just use USPS First Class shipping for the lowest cost ship rate.

                                    Comment

                                    • brethin
                                      Badcaps Legend
                                      • Dec 2008
                                      • 1907
                                      • USA
                                      #10
                                      Re: Stocking up on capacitors - Help Needed!

                                      Or order what you need from here if he has them.

                                        Comment

                                        Previous template Next

                                        Related Topics

                                        Collapse
                                        • slybunda
                                          AA and AAA battery charger capacitors?
                                          by slybunda
                                          hey all, iv got my favourite battery charger here which iv had for many years probably 15 years now or maybe even more. it still works good but thought id open it up to clean the dust out of it, lots of dust inside but now its clean and noticed 4 capacitors inside it and wondered if i should replace them.
                                          it has inside:
                                          2 x 47uf 16v caps 105c branded as Su'scon (lol sounds sus to me)
                                          2 x 470uf 16v LZ105c branded as G.Luxon

                                          not heard of these brands are they any good?

                                          iv attached photos of the charger and the board inside for an idea on the type of...
                                          12-24-2023, 04:41 AM
                                        • sam_sam_sam
                                          Panasonic switching power supply daughter board has two 27uf @ 50 volt capacitors which I do not keep in stock
                                          by sam_sam_sam
                                          I did not have any 27uf @ 50 volt capacitors but one nice thing is that it has enough room for two capacitors in parallel a 22uf and a 4.7uf @ 50 volts 22 plus 4.7 equals 26.7uf which so very close to 27uf I will show some pictures of it sometime tomorrow

                                          This is one of the shit est boards I seen in a very long time and it was the daughter board the traces just lifting off the board I had to use the capacitor leads to repair the the traces and the main board is not any better because I had to repair several traces for the daughter board to the main board

                                          After all of...
                                          07-13-2024, 08:14 PM
                                        • Ady2017
                                          Are there any datasheets available for Elna RJG capacitors?
                                          by Ady2017
                                          I have a 2007-era Panasonic VHS combo that is full of of Elna RJG capacitors. I am trying to test the capacitors to diagnose the machine and then select replacement capacitors but I can not find any datasheets for them. I did find a Elna catalogue from 2007-2008 but there is no mention of this capacitor series. Where these specially made for Panasonic and so not made available to the public? Any ideas what to find out what the ESR values should be without the datasheets? They are all between 10V and 50V and 47uF and 1800uF. None are leaking or bulged but I know that they need to be tested to be...
                                          05-25-2025, 02:19 PM
                                        • acedogblast
                                          Guide to transplant MEC1503 EC chip and EEPROM reprogamming for T14s gen 2 and X13 gen 2
                                          by acedogblast
                                          This is a guide that I am writing for helping others to replace their MEC1503 EC chip if it breaks (or to get around an inconvenient prompt to the BIOS). This forum has been extremely helpful to me so I would like to contribute to help others. I will tell you right now that this task is very difficult to do. You MUST have experience and tools to do precision micro-soldering, BGA reballing, trace repair, and general laptop repair skills.

                                          There are some specialty tools needed to do this task. The replacement MEC1503 chips can be acquired from Aliexpress. Do not buy the bare chips as...
                                          11-02-2024, 05:13 PM
                                        • ctroxtell
                                          Samsung UN70tu7000wxza no standby light, do I have bad capacitors?
                                          by ctroxtell
                                          I picked up a 70" Samsung UN70TU7000WXZA. The original owner said they were watching it when the power surged and knocked it out. I pulled the back off the TV and disconnected the main board from the power board, and the LED backlight came on, which I was told meant the power board was good. When everything is plugged in the standby light will not come on, looking at the main board BN94-17775A with a thermal imaging gun I can see one of the chips labeled 3202 is 251 degrees F just sitting idle. I found a replacement board, BN94-16115X; this board has the same symptoms, except it is a different...
                                          01-03-2025, 08:57 PM
                                        • Loading...
                                        • No more items.
                                        Working...