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1 vote
1 answer
87 views

Electrolytic 3-lead capacitor

I have a 3-lead capacitor that I'm having a hard time identifying. It is from an old Lafayette PF-30 receiver. I don't have schematics or a manual. It has a high squeal when turned on, and my first ...
radar's user avatar
  • 13
2 votes
1 answer
296 views

How to identify surface mount electrolytic capacitors?

Various surface mount electrolytic capacitors seem to have no consistent marking method. Here are some examples: (Image sources: 1, 2, 3) How can I identify what value and voltage rating these are?
JYelton's user avatar
  • 34.3k
1 vote
1 answer
394 views

Identifying a vintage capacitor

This is inside an Allen Wales (Model 9E) adding machine. It was manufactured in the late 30s or maybe sometime in the 40s from what I've read. There are notes from a technician scratched on the inside ...
Mark M's user avatar
  • 11
2 votes
1 answer
326 views

Help identifying capacitors

The base of my my beloved robotic lawn mower has stopped working. It is the base that is the problem. If I unplug it for a while, then it will work for a few minutes, when I reconnect it. I have ...
Wispheren's user avatar
12 votes
2 answers
3k views

Which manufacturer's logo is this?

I'm trying to identify the manufacturer (and hopefully part number) for these capacitors. My guess is they're standard aluminium electrolytics, rather than something fancy like alupoly, but I can't ...
Polynomial's user avatar
  • 10.8k
0 votes
3 answers
303 views

What is this capacitor?

Can anyone confirm what the markings on this capacitor mean? I think it's a 560 μF capacitor, but I am used to seeing that on the first row of similar devices. For voltage, I believe it's a 35 V ...
T C's user avatar
  • 1
8 votes
1 answer
947 views

Why do these capacitors have an additional plastic block around them? What kind of capacitor is this?

Just saw these type of capacitors for the first time and I'm curious : Why do they have this additional block of plastic around them? Some kind of shielding? Is there some specific reason they didn't ...
raddevus's user avatar
  • 1,272
1 vote
1 answer
111 views

Tiny 0.33 F Capacitor

I need to replace these (what I think are) capacitors, but the rating seems very high. They are smaller than the tip of my finger, yet the label pretty clearly says 0.33F, 5.5V. This seems wrong, as ...
7265469843's user avatar
2 votes
1 answer
978 views

Can you identify these SMD Electrolytic capacitors? [closed]

I'm fairly sure I need to replace the capacitors in this LCD panel from 1993, but I'm not 100% sure I'm reading them correctly. I'm guessing that the large ones are 47uF 16V, the medium ones are 10uF ...
StarkRG's user avatar
  • 89
2 votes
1 answer
4k views

Surface mounted electrolytic capacitor markings

Is this 22 µF / 16V? General rule of thumb for these markings?
Murey Tasroc's user avatar
4 votes
1 answer
2k views

How to Identify Capacitor

i need help to identify the following capacitors This seems to be a 33µF at 100V but iam not sure. I cant identify this one. What does the small letter at the end(maybe a F) mean?
Looty's user avatar
  • 51
1 vote
1 answer
205 views

Odd electrolytic capacitor markings

I took apart a disposable camera and found the flash capacitor inside. It says: 4 (2) 0c There are no other markings on it. What is this supposed to mean?
Astrid Yu's user avatar
  • 129
7 votes
3 answers
6k views

What are markings on top of electrolytic capacitors?

I often see a marking like the following pattern on the top of radial PTH elcos. What does it mean? Is it an identification of the manufacturer?
stevenvh's user avatar
  • 146k