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Questions and answers for identifying whether your device has bad capacitors. Also post general capacitor-related questions and issues here.

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Sticky: Post help identifying capacitors here by Uranium-235
Started by Uranium-235, 10-19-2022, 06:04 PM
164 responses
26,567 views
0 likes
 Last Post m2farid
by m2farid
04-14-2025, 03:57 AM  
Sticky: List of Bad Cap Manufacturers by willawake
Started by willawake, 01-16-2005, 03:22 PM
384 responses
574,651 views
0 likes
 Last Post RUllER
by RUllER
01-04-2025, 10:41 AM  
Sticky: The Hall of Shame - Badcaps Photo Montage by willawake
Started by willawake, 02-06-2005, 05:50 AM
1,046 responses
616,466 views
0 likes
 Last Post Cartel
by Cartel
12-19-2023, 11:38 AM  
Sticky: The GOOD Capacitors Thread!! by Topcat
Started by Topcat, 02-03-2005, 12:16 PM
200 responses
326,133 views
0 likes
 Last Post Andr_
by Andr_
11-23-2023, 09:40 AM  
Sticky: How to Recondition (Reform) Electrolytic Capacitors and Why by momaka
Started by momaka, 11-22-2015, 10:16 PM
131 responses
100,194 views
0 likes
 Last Post lti
by lti
11-21-2023, 10:31 AM  
Sticky: This is Why You NEVER Ignore Bad Capacitors! by Topcat
Started by Topcat, 06-25-2004, 07:47 PM
77 responses
124,360 views
0 likes
 Last Post ICLEAF123
by ICLEAF123
11-09-2023, 08:48 PM  
Sticky: Cap Datasheet Depot by Uranium-235
Started by Uranium-235, 11-20-2012, 11:26 PM
86 responses
76,214 views
0 likes
 Last Post andrewsawesomr
by andrewsawesomr
09-13-2023, 08:03 PM  
Power supply filter capacitor measurement in circuit by Fritter
Started by Fritter, 11-15-2023, 12:58 PM
8 responses
443 views
0 likes
 Last Post momaka
by momaka
11-18-2023, 08:15 PM  
Help ID this SMT electrolytic cap "CD" by redwire
Started by redwire, 11-17-2023, 01:01 PM
3 responses
491 views
0 likes
 Last Post redwire
by redwire
11-18-2023, 01:18 PM  
Elite Capacitors? (450v 47uf power board Toshiba Vestel TV) by slybunda
Started by slybunda, 11-13-2023, 06:33 AM
17 responses
776 views
0 likes
 Last Post spiros.p
by spiros.p
11-16-2023, 10:29 PM  
Ceiling Fan Capacitor by RD_Atlanta
Started by RD_Atlanta, 09-17-2023, 03:57 PM
5 responses
920 views
0 likes
 Last Post DrewPhillips
by DrewPhillips
11-08-2023, 01:27 PM  
Requesting Help Identifying tiny Aluminium electrolytic by AstutePauciloquent
Started by AstutePauciloquent, 10-20-2023, 06:29 AM
1 response
837 views
0 likes
 Last Post kc8adu
by kc8adu
11-02-2023, 02:00 PM  
Any more info on counterfeit Nichicons? by japlytic
Started by japlytic, 07-21-2006, 06:58 AM
69 responses
29,860 views
0 likes
 Last Post kc8adu
by kc8adu
11-02-2023, 12:39 PM  
PSU Capacitor ID by m4a2t0t
Started by m4a2t0t, 09-29-2023, 09:17 PM
2 responses
1,016 views
0 likes
 Last Post stj
by stj
10-03-2023, 03:24 AM  
Imac capacitor help by thenoicer
Started by thenoicer, 09-24-2023, 05:09 AM
2 responses
861 views
0 likes
 Last Post momaka
by momaka
09-25-2023, 12:19 PM  
What's the best capacitor manufacturer? by Funkmeiser
Started by Funkmeiser, 09-22-2023, 02:20 PM
4 responses
908 views
0 likes
 Last Post Funkmeiser
by Funkmeiser
09-22-2023, 06:33 PM  
How do I tell which terminal is what on an electrolytic capacitor? by Funkmeiser
Started by Funkmeiser, 09-21-2023, 04:17 PM
4 responses
807 views
0 likes
 Last Post stj
by stj
09-22-2023, 02:59 AM  
Replacement for the Siemens Bakelite caps in an early 1980s SMPS by rewease
Started by rewease, 09-17-2023, 12:53 AM
10 responses
1,275 views
0 likes
 Last Post Olkus
by Olkus
09-21-2023, 12:02 AM  
Replacing Mode Indicator LEDs by VitalComputing
Started by VitalComputing, 09-17-2023, 04:43 PM
9 responses
1,119 views
0 likes
 Last Post sam_sam_sam
by sam_sam_sam
09-20-2023, 05:13 AM  
Thomson capacitors - looking for datasheet by Olkus
Started by Olkus, 09-15-2023, 03:14 PM
2 responses
769 views
0 likes
 Last Post Olkus
by Olkus
09-16-2023, 03:41 AM  
Measuring ESR in-circuit: LCR or ESR meter by Rado108
Started by Rado108, 09-10-2023, 10:42 AM
2 responses
912 views
0 likes
 Last Post Rado108
by Rado108
09-11-2023, 08:48 AM  
Replacement caps ok? (smoothing caps, PSU heating controller) by HectoPascal
Started by HectoPascal, 09-06-2023, 08:30 PM
8 responses
1,038 views
0 likes
 Last Post HectoPascal
by HectoPascal
09-09-2023, 04:12 PM  
How are Elite caps? by Pentium4
Started by Pentium4, 11-09-2011, 10:33 PM
14 responses
11,859 views
0 likes
 Last Post andrewsawesomr
by andrewsawesomr
09-08-2023, 03:40 PM  
Capacitor Discharge Rate Testing! by shagster
Started by shagster, 08-24-2023, 02:55 PM
14 responses
1,310 views
0 likes
 Last Post momaka
by momaka
09-06-2023, 04:43 AM  
Elna capacitors - fake? by Olkus
Started by Olkus, 09-01-2023, 02:45 AM
9 responses
1,329 views
0 likes
 Last Post Olkus
by Olkus
09-05-2023, 11:52 AM  
Fake Nichicon 100uF 450v GN (M) by abhi.1981
Started by abhi.1981, 08-26-2023, 11:01 AM
4 responses
1,121 views
0 likes
 Last Post abhi.1981
by abhi.1981
09-04-2023, 12:20 PM  
Important to know about capacitors on the motherboard by asdas09
Started by asdas09, 09-03-2023, 06:19 AM
0 responses
703 views
0 likes
 Last Post asdas09
by asdas09
09-03-2023, 06:19 AM  
Is this capacitor any good??? by Sinnyone
Started by Sinnyone, 08-28-2023, 11:24 AM
5 responses
979 views
0 likes
 Last Post R_J
by R_J
08-29-2023, 09:34 AM  
RELAND SUN 6.3v 3300uf Low or High ESR? by Oldschool297
Started by Oldschool297, 08-14-2023, 04:32 AM
4 responses
2,603 views
0 likes
 Last Post Per Hansson
by Per Hansson
08-15-2023, 09:19 AM  
Please teach me how to find datasheets to obsolete caps by CdDvdFlash
Started by CdDvdFlash, 08-12-2023, 12:29 PM
8 responses
1,073 views
0 likes
 Last Post momaka
by momaka
08-14-2023, 03:21 PM  
Replacing caps in an old speaker system. Should I use a higher value here? by Delicieuxz
Started by Delicieuxz, 06-25-2023, 08:27 PM
9 responses
1,895 views
0 likes
 Last Post andrewsawesomr
by andrewsawesomr
08-13-2023, 11:49 PM  
Korea Chemi-con by jhjove
Started by jhjove, 08-05-2023, 06:33 PM
9 responses
1,091 views
0 likes
 Last Post japlytic
by japlytic
08-06-2023, 06:11 PM  
Are these 1000uF 10v Topmay capacitors from eBay ok? by awdrifter
Started by awdrifter, 07-07-2023, 02:15 AM
11 responses
2,248 views
0 likes
 Last Post AleXis6
by AleXis6
07-17-2023, 04:55 AM  
What is this component, looks like a cap by DanPoka
Started by DanPoka, 07-14-2023, 10:01 AM
4 responses
1,057 views
0 likes
 Last Post eccerr0r
by eccerr0r
07-15-2023, 06:43 AM  
Meaning of "Not For New Designs" by Junkrepair
Started by Junkrepair, 06-24-2023, 12:34 PM
4 responses
2,150 views
0 likes
 Last Post stj
by stj
07-01-2023, 07:19 AM  
Polycom formerly Obihai Obi202 VoIP Adapter - Capacitor Replacement Recommendations by Almighty1
Started by Almighty1, 04-22-2023, 04:06 AM
10 responses
4,826 views
0 likes
 Last Post sam_sam_sam
by sam_sam_sam
06-27-2023, 06:31 PM  
Spot welder capacitor blew up by shanedev93
Started by shanedev93, 06-21-2023, 01:02 PM
14 responses
2,237 views
0 likes
 Last Post shanedev93
by shanedev93
06-27-2023, 12:44 PM  
Calculating ESR from tan delta -- tan delta's dependence on capacitance by Junkrepair
Started by Junkrepair, 06-12-2023, 02:45 PM
7 responses
3,865 views
0 likes
 Last Post Junkrepair
by Junkrepair
06-23-2023, 04:14 PM  
LG TV recall re. bad X-class capacitors by japlytic
Started by japlytic, 05-05-2023, 05:44 PM
12 responses
2,420 views
0 likes
 Last Post eccerr0r
by eccerr0r
06-21-2023, 01:51 PM  
Caps and how to find one to replace by edith
Started by edith, 06-11-2023, 05:00 PM
3 responses
1,956 views
0 likes
 Last Post edith
by edith
06-12-2023, 06:55 AM  
Finding replacements for Su'scon caps by mildew
Started by mildew, 01-08-2017, 01:53 PM
9 responses
6,521 views
0 likes
 Last Post stj
by stj
06-06-2023, 01:41 PM  
why is my problem fixed when I ground caps? by looxuser
Started by looxuser, 06-04-2023, 03:36 PM
1 response
1,016 views
0 likes
 Last Post petehall347
by petehall347
06-04-2023, 05:45 PM  
What type of cap is this? by Electronic Santa
Started by Electronic Santa, 05-06-2023, 08:41 AM
3 responses
1,303 views
0 likes
 Last Post petehall347
by petehall347
06-03-2023, 03:00 PM  
Okay to use 6.3V caps on 3.3V line of PC PSU? by em132
Started by em132, 05-30-2023, 03:41 PM
9 responses
3,400 views
0 likes
 Last Post momaka
by momaka
06-02-2023, 10:05 PM  
Samxon capacitor esr by GEARELECTRONICS
Started by GEARELECTRONICS, 05-29-2023, 07:26 AM
2 responses
1,400 views
0 likes
 Last Post redwire
by redwire
05-29-2023, 01:29 PM  
Picking caps for Antec SU-380 by ajdrenter
Started by ajdrenter, 05-13-2023, 10:40 AM
7 responses
2,519 views
0 likes
 Last Post AleXis6
by AleXis6
05-26-2023, 03:27 PM  
How do I read this Capacitor or where do I buy this one by kiransband
Started by kiransband, 05-22-2023, 06:38 PM
5 responses
1,202 views
0 likes
 Last Post stj
by stj
05-23-2023, 03:31 PM  
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