Post help identifying capacitors here

[ladui]

I'm trying to repair a car ECU that shows a fluctuating system voltage (between 6V and 13V in diagnostics) even though the battery voltage is stable. I suspect a faulty capacitor on the main power supply line.

The capacitors in question are a small, yellow, ceramic capacitor located right next to the main power input pin (pin 12) and ignition (pin 13) of the main controller chip. There are no visible markings or codes on it.

I've attached a close-up photo of the capacitors (pin 12 is constant + and pin 13 is ignition + ) and an overview of the board. I've checked the resistance with a multimeter and pin 12 capacitor goes for 0.8MΩ and pin 13 capacitor goes with 2.8kΩ. The ecu was under water so from my little understanding I suspect this could be the problem for the fluctuating system voltage

Could anyone help me identify its likely value? Any help would be greatly appreciated!

[Slydder]

I have a THT MLCC that i am unsure of. could someone help ID this cap please?

thx

[Clarify4082]

Hi, need help to identify and find replacement for "I9AJN"

[Trond]

I'm recapping my IBM PS/2 P70 PSU and I've found information about most of the caps. However, there are 3 caps that are not found in any datasheet or in the web archive. They are labeled GM & GX.
Someone told me that these are special purpose caps made for PSUs. I'm looking for Information about the Impetance and Ripple Current on these.

RefDes	Capacitance	Voltage	Mount	Diameter/Size	Height	Lead Spacing	Temp	Type	Brand	Series
C009	2.2 µF	400V	Through hole (radial)	10mm	15mm	5mm	105C	Electrolytic	Panasonic	GX
C105	33 µF	250V	Through hole (radial)	16mm	25mm	7.5mm	105C	Electrolytic	Panasonic	GM
C137	10 µF	250V	Through hole (radial)	12mm	20.5mm	5mm	105C	Electrolytic	Panasonic	GM

[stevesg]

can anybody identify this 10U_0603_25V6M

10U_0603_25V6M
i need to know what to replace this with i assume it is 10uf and 0603 size, 25volt, but what does the 6m mean, is it 20% 10%
many thanks

[momaka]

So the markings 10V, 470 uF are all I need to worry about? All the other characters on there don't mean anything?

The "HC" marks indicate that these are Nichicon HC series - a low impedance type of capacitor. So you need to get the same type - i.e. match the impedance/ESR and ripple current to generally within +/-30%. The brands and series I listed in my previous post should all be close enough. So just look for, for example, Rubycon ZLH or ZLQ on Digikey, and you should be able to find good-matching replacements.

[scottl31]

The cap that scottl31 posted above is Nichicon HC series, as lti correctly identified.
EB series from Panasonic is not quite adequate in that case, if ESR and ripple current capability are to be observed.

Relatively close replacements would be United Chemicon KZE and KZH or Rubycon ZLH or ZLQ. All of these are readily available on both Mouser and Dikigey ATM. Just match the capacitance and the voltage (10V, 470 uF), along with the diameter. Height-wise, UCC KZH and Rubycon ZLH and ZLQ will likely both be shorter, since they are newer miniaturized series.

*edit*
Forgot to add... Nichicon HW and HV series would also be close enough (if not better), along with Panasonic FR and FS. These are also readily available on Digikey and Mouser.

Happy hunting!
.

So the markings 10V, 470 uF are all I need to worry about? All the other characters on there don't mean anything?

[GASPARD]

Tranks!

[semiRocket]

Hi, first time I see I cap like this, I suspect it is anyway as it is marked as C124 on the PCB. The markings means 0.1uF, 400V?

Well the in circuit ESR shows around 88ohms, I suspect something is not right...

[momaka]

The cap that scottl31 posted above is Nichicon HC series, as lti correctly identified.
EB series from Panasonic is not quite adequate in that case, if ESR and ripple current capability are to be observed.

Relatively close replacements would be United Chemicon KZE and KZH or Rubycon ZLH or ZLQ. All of these are readily available on both Mouser and Dikigey ATM. Just match the capacitance and the voltage (10V, 470 uF), along with the diameter. Height-wise, UCC KZH and Rubycon ZLH and ZLQ will likely both be shorter, since they are newer miniaturized series.

*edit*
Forgot to add... Nichicon HW and HV series would also be close enough (if not better), along with Panasonic FR and FS. These are also readily available on Digikey and Mouser.

Happy hunting!
.

[CapLeaker]

Mine are through hole with two legs. This one you mention at digikey looks like it's not through hole. Is this right?

Then just fit a regular through hole capacitor like

EEU-EB1A471

just watch the leg spacing, diameter and height.

[scottl31]

470uF, 10V

go for something 105c rated 470 uF 10V or 16V, at least 5000hrs rated.. Like

EEE-FK1A471GV

on Digikey.

Mine are through hole with two legs. This one you mention at digikey looks like it's not through hole. Is this right?

[lti]

That looks like Nichicon HC series. That's a through-hole series, but I don't see a plastic base or surface mount pads in your picture. For a while, Nichicon marked some of their through-hole series like that.

[CapLeaker]

I don't know how to read the markings. Are you saying that either of those companies might have pictures on their site I can match this to? Thanks!

470uF, 10V

go for something 105c rated 470 uF 10V or 16V, at least 5000hrs rated.. Like

EEE-FK1A471GV

on Digikey.

[scottl31]

Mouser or DigiKey. But you can use just regular through hole capacitors too. You just bend the legs outwards.

I don't know how to read the markings. Are you saying that either of those companies might have pictures on their site I can match this to? Thanks!

[CapLeaker]

Hello,
Would anyone know where I could purchase a capacitor like this in the picture?
Thanks,
Scott

Mouser or DigiKey. But you can use just regular through hole capacitors too. You just bend the legs outwards.

[scottl31]

Hello,
Would anyone know where I could purchase a capacitor like this in the picture?
Thanks,
Scott

[m2farid]

Those one, please. Thanks

[m2farid]

Hi could you please help me identify the capacitors arround bios chips

[DRKNSIDE]

looking for identity and where i can locate one of these capacitors shows 20K 560J E13 or E73 can really tell, Thanks!