HELA15_N18E_130W :What are those components ? Resistors or capacitors and what value

[madfreak]

Hi You all, i have mistakenly lost few components while soldering mosfet and because there is no schematic for that board i do not know what those components in yellow circles are

If someone know the name of the components and values i will be really appreciated.

The laptop name is :

DELL G7 17 7000
GTX 1660Ti
i7-10750H

And the board name is :

HELA15_N18E_130W_MB

Best of luck to You all and thank You in advance for help

[elecsoluces]

Re: Please help :What are those components ? Resistors or capacitors and what v

Hello,

It's a coil 0.15µH

[JaroTech]

Re: Please help :What are those components ? Resistors or capacitors and what v

Hello,

It's a coil 0.15µH

The question is not for the coil (red circle), he was asking what are the three components in the yellow circles above the coil!

[mon2]

Re: HELA15_N18E_130W :What are those components ? Resistors or capacitors and what va

What are the markings on the topside of each black component that are north of each inductor ? From a distance, this looks to be a multiphase power supply that work to power some hefty current device (GPU is most likely the pig).

On the missing parts - remove all power.

Meter in resistance mode.

Then place one meter lead on the missing part pad; the other meter lead on the larger cap that is nearby. What is the resistance ?

Trying to determine if the missing parts were in parallel to the nearby part.

In this case, the part will be despike / filter cap - different values are used to filter different frequencies.

For example, often in our PCB designs, we will use:

0.1uf + 0.001uf + 10uf on a power rail. Different cap values help in different ways to filter out noise on that power rail. Multiple caps on the same leg will also allow them to share the burden (current) of the heavy load (work).

Repeat the resistance check with the meter on the OTHER side of the missing part's pad; then the meter lead on the OTHER side of the nearby part. This is only to check if the missing part was in parallel, like above testing.

[madfreak]

Re: HELA15_N18E_130W :What are those components ? Resistors or capacitors and what va

Thank You, they are all 0,1 uF/25V = 100nF/25V and the size is 0201.

Nooooo way i will solder that dust hehe ... i will place 0603 at least.

[mon2]

Re: HELA15_N18E_130W :What are those components ? Resistors or capacitors and what va

You can even skip mounting them. These caps will not be missed.

If you really want to mount them, consider to buy leaded (aka through hole) caps and solder them onto the larger caps. Just trim the legs to suit - make them short as possible and solder them 'piggy back' style.

This cap value will not be polarized so they can be soldered in either direction / orientation.

[madfreak]

Re: HELA15_N18E_130W :What are those components ? Resistors or capacitors and what va

Everything works fine i think