MacBook pro, 820-2610-A, X5R capacitors

[lcdcaps1]

Hi
All

I have an 820-2610-A logic /mother board and I need to replace some capacitors that are X5R rated

For e.g C7000 and C7001 are rated X5R caps as are some others

I would like to know, Can I replace these with regular SMD caps with the same specs or keep the same uf and increase the voltage?
Please can you anyone provide some insight into this


Has anyone done this that can provide some insight if the laptop is still working or has weird side effects

I don't have any spare X5R caps within the same specs
I know I can order but will have to wait for them to arrive


Thanks all so much in advance

[mon2]

Re: MacBook pro, 820-2610-A, X5R capacitors

X5R defines the characteristics of the part vs. temperature. It is a stable spec to use X5R.

Better to use x7r which are rated for yet higher temperature.

What are the cap values? Where are you located?

Digikey / Mouser / arrow should have them.

[lcdcaps1]

Re: MacBook pro, 820-2610-A, X5R capacitors

X5R defines the characteristics of the part vs. temperature. It is a stable spec to use X5R.

Better to use x7r which are rated for yet higher temperature.

What are the cap values? Where are you located?

Digikey / Mouser / arrow should have them.

Thanks for the reply
I am UK based, I know i can order some but if I order i have to wait and not sure if more X5R-rated caps are gone

the values of the two that i need to replace that i know for sure are
C7000
X5R
10%
402

C7001
10V
402
1UF
X5R
10

[mon2]

Re: MacBook pro, 820-2610-A, X5R capacitors

These are not critical parts with respect to the capacitance.

So you can use 1uf or higher - they are using 10v but according to the leg of the design, they are expecting to support 5v1 (see the resistor these parts mate to). So you could use a 6v3 rated part here.

So 1uf (or higher) in 0402 package @ 6v3 (or higher) should work fine. Apply the same capacitance on both sides of the circuit like they have.

We know that you can purchase 10uf in 0402 size at 6v3 rating. We use them on some of our circuit board builds but in general, the smaller the component, the less the variety of the capacitance as the size is small. Likewise the voltage rating will be lower.

Have you checked RS electronics that is in the UK ?

Are these parts damaged on your logic board? That is, why are you replacing them?

[lcdcaps1]

Re: MacBook pro, 820-2610-A, X5R capacitors

These are not critical parts with respect to the capacitance.

So you can use 1uf or higher - they are using 10v but according to the leg of the design, they are expecting to support 5v1 (see the resistor these parts mate to). So you could use a 6v3 rated part here.

So 1uf (or higher) in 0402 package @ 6v3 (or higher) should work fine. Apply the same capacitance on both sides of the circuit like they have.

We know that you can purchase 10uf in 0402 size at 6v3 rating. We use them on some of our circuit board builds but in general, the smaller the component, the less the variety of the capacitance as the size is small. Likewise the voltage rating will be lower.

Have you checked RS electronics that is in the UK ?

Are these parts damaged on your logic board? That is, why are you replacing them?

Thanks for the reply
The components were knocked off
Do the components need to be X5R rated though

If I order the X5R-rated capacitors and then find out I need more components then the work is put on hold and costs are adding up

[piernov]

Re: MacBook pro, 820-2610-A, X5R capacitors

Avoid Y5V. X7R will of course be fine in place of X5R. Other ratings are much rarer. X5R is very common.
Pretty standard values so shouldn't be difficult to find on a donor board. Having a matching model will of course help swapping parts without looking them up.
Plan to replace C7771 with a rectangular aluminum polymer cap too.

[lcdcaps1]

Re: MacBook pro, 820-2610-A, X5R capacitors

Avoid Y5V. X7R will of course be fine in place of X5R. Other ratings are much rarer. X5R is very common.
Pretty standard values so shouldn't be difficult to find on a donor board. Having a matching model will of course help swapping parts without looking them up.
Plan to replace C7771 with a rectangular aluminum polymer cap too.

Thanks for the reply piernov
I will be doing the C7771

I do have a dead old ps3 motherboard that I can pull components from
Have you replaced X5R-rated caps with normal SMD ones,
If so what was the behaviour


Why did Apple use X5R-rated caps for
C7000 and C7001
What would be the consequences for replacing these with normal ceramic SMD caps
Please
Thanks all and piernov

[piernov]

Re: MacBook pro, 820-2610-A, X5R capacitors

They are "normal ceramic SMD caps". They are used on most electronics devices. Y5V is used when the manufacturer is cheaping out.
Y5V have much worse temperature coefficient than X5R so that's why they are not recommended especially in devices that get pretty hot.
https://en.wikipedia.org/wiki/Cerami...mic_capacitors

[lcdcaps1]

Re: MacBook pro, 820-2610-A, X5R capacitors

They are "normal ceramic SMD caps". They are used on most electronics devices. Y5V is used when the manufacturer is cheaping out.
Y5V have much worse temperature coefficient than X5R so that's why they are not recommended especially in devices that get pretty hot.
https://en.wikipedia.org/wiki/Cerami...mic_capacitors

Hi
Thanks for the reply
The schematic shows they are X5R, not Y5V
Have you replaced X5R caps with normal smd ceramic caps

According to here
https://www.allaboutcircuits.com/tec...p08xQgrHrncWuA

It says
The theoretical range is from 45°C to 200°C; 5 (as in X5R) corresponds to 85°C

Does the MacBook pro get this hot with the case on

Also
The spec for --R capacitors (such as X5R and X7R) is ±15%.

[mon2]

Re: MacBook pro, 820-2610-A, X5R capacitors

Just source X5R or x7r capacitors from a real distributor and you will be fine. Some shops on AliExpress may bait and switch the caps.

The designs state the type of cap that should be used for the temps they are expecting inside the box.

Y5v will be cheaper but substandard.

X5R are considered to be normal or standard parts.

[lcdcaps1]

Re: MacBook pro, 820-2610-A, X5R capacitors

Just source X5R or x7r capacitors from a real distributor and you will be fine. Some shops on AliExpress may bait and switch the caps.

The designs state the type of cap that should be used for the temps they are expecting inside the box.

Y5v will be cheaper but substandard.

X5R are considered to be normal or standard parts.

Thanks for the reply
I will try to source but
if the Macbook pro got to the temperatures for the X5R capacitor it would surely turn off

[mon2]

Re: MacBook pro, 820-2610-A, X5R capacitors

Confused by your statement.

Stick with X5R or x7r and you will be fine.

[lcdcaps1]

Re: MacBook pro, 820-2610-A, X5R capacitors

Confused by your statement.

Stick with X5R or x7r and you will be fine.

Sorry

According to here
https://www.allaboutcircuits.com/tec...p08xQgrHrncWuA

It says
The theoretical range is from 45°C to 200°C; 5 (as in X5R) corresponds to 85°C

If the Macbook pro got this hot it would turn off, I would have thought