SMT Electrolytic Capacitor with no Voltage Rating


#1

One questions that comes through our department is from customers who are trying to identify a surface mount Aluminum Electrolytic Cap and there is no Voltage listed. Once we start looking at the cap we often find that the voltage is listed, however as a letter and not the actual voltage value.

Here is a marking chart from Rubycon’s TZV series of Capacitors.
imageimage

Cornell Dubilier has a similar chart with their AFK Series
image

This however is not standard as some of the capacitors do list a voltage value. Here is an example from Kemet’s EDK Series.
image

If you need help identifying your capacitor please feel free to post a picture on here on the forum and out team of techs and engineers will help with the identification process.


Finding a replacement electrolytic capacitor
#2

Can you help me identify two smd caps marked:

100
VHA
1H3

and

100
AHA
2Q6


#3

I will check those markings. Do you happen to have a picture?

These appear to be Cornell Dubilier Parts. the AHA is a 10V and the VHA a 35V. here is the snip from the Data sheet.
image


#4

Hi Robert,
Only took a photo of the “100 VHA 1H3”, the other shorter one, “100 AHA 2Q6” is similar. I’m guessing 100uf but what voltage ratings?
Thanks for your assistance.
Al Metz


#5

image

the only issue is that there are 3 options in that size. Could you measure the base of the cap?

Same on the 10V there are 2 Options.


#6

Capture

Can anyone let me know what this is. I’m assuming its 47uf 50v


#7

Hello @drhexuk,

While I was not able to identify the cap you have pictured I do agree with your conclusion. I would say this is a 47uF and a 50V cap based on part markings generally given to SMD Caps.

-Robert


#8


Hello. Can you please identify the voltage/capacitance on this one? It says:
e3
47C
UD

Is it 4.7uF … is that what the C means? I don’t have a guess for the voltage.


#9

This is a Nichicon UD Series Cap 47uF and the C means 16V
the e3 is a lot code
image

Part Number 493-2259-1-ND


#10

Thanks much.


#11

Can you help identify these caps please

Top right marking,
22
jHB
6Y3

Bottom right,
7c
22
35V

Middle,
100
gHB
6A3

I tried to refer the above posts but im just not sure


#12

Top right appears to be a 22uF 6.3v HB series
EEE-HB0J220R

Middle is also a HB series 100uF 4V
EEE-HB0G101R

Bottom Right appears to be a 22uF 35V
I was not able to confirm, however it appears to be a ELNA from the markings
RVS-35V220MF55U-R You would just need to verify the physical landing pad on this one. Any 22uF 35V would work.

-Robert


#13

Thank you sir