Need help with finding replacement for L6 element model 80L3A-40-HF, MS-16K21 GS73Vr

[madfreak]

I will be very grateful if someone will help me to find a replacement for L6 / 80L3A-40-HF element on MSI motherboard

Laptop model : MSI GS73VR
Motherboard model : MS-16K21 rev 2.1


Thank You very much in advance for help

[mon2]

Re: Need help with finding replacement for L6 element model 80L3A-40-HF, MS-16K21 GS7

If in a pinch, the component @ L6 is not required for operation. The device is a ferrite bead and is acting like an EMI filter to reduce noise on this power rail.

To bypass the part, remove it and apply a piece of wire onto the PCB pads where this component resides.

To source a replacement part, you will need to measure the length and width of the PCB pads with a micrometer so that we can get a physical size of this SMD part.

The value is not critical but suggest perhaps 600 ohms @ 100 Mhz and 2A+ current.

[madfreak]

Re: Need help with finding replacement for L6 element model 80L3A-40-HF, MS-16K21 GS7

Thank You very much for explanation You are awesome and i wish You a great health ... so in other words : It is not needed and a piece of wire like 0,1 mm of thickness will be ok ?

Or maybe i will use some kind of replacement ? I have found on different board on 19v line that part : 5A_Z120_25M_0805_2P... it is a little big bigger because the previous was 0603 and this one is 0805 but there is a place to solder it but what that 5A power and i guess 120 Ohm ...is that will be ok ?

Thank You once again for Your precious help

[mon2]

Re: Need help with finding replacement for L6 element model 80L3A-40-HF, MS-16K21 GS7

120 ohm @ 0805 is fine if the 0805 is a good fit for your PCB pads.

The 120 ohms states that the component will offer this resistance @ 100 Mhz frequency. Higher resistance is better but will be a higher cost.

We have used 120 ohms on many designs but recently started to use more and more of the 600 ohms ferrite bead.

Yes, if you do not have access to this part, you can use a short piece of wire and bridge the pads. Keep in mind that the wire must handle the current required the display panel so use a thicker gauge rather than say wire wrap style wire (dating myself here). Otherwise the very think wires will act like a fuse.

[madfreak]

Re: Need help with finding replacement for L6 element model 80L3A-40-HF, MS-16K21 GS7

I do not even know how to thank You .

I am really grateful for Your time and for the priceless knowledge which You gave me. A BIG THANK YOU.

Once again i wish to You and to Your whole family a great health and happyness .

Keep in mind but You already know it for sure, that good deeds are always coming back so please be aware that something really great is on its way to You.

Have a wonderful and peaceful day / night.

[mrg402]

I know this thread is old but I figured I'd post for anyone looking in the future. I used this as a replacement.

https://www.mouser.com/ProductDetail...603Y564KXQCW1B

Hope this helps someone. Take care.

[piernov]

L6 is a ferrite bead not a capacitor.

[mrg402]

L6 is a ferrite bead not a capacitor.

Oh..that makes sense. I'm still learning and guess I've got a bit more to do. Thanks for the info. Have not heard of a ferrite bead before now. Just did some reading up on them. Also just read above where "mon2" mentioned this and I glanced over it. Whoops