LMZ21701: LMZ21701SILR

Dongmei Chen

Prodigy 40 points

Part Number: LMZ21701

Tool/software:

Xray found some of the samples have metal material beneth the inductor, does this metal material cause any risk?

over 1 year ago

0 Colin Chen over 1 year ago

TI__Mastermind 21081 points

Hi Dongmei,

I will check with product engineer and reply to you later.

Colin

0 Dongmei Chen over 1 year ago in reply to Colin Chen

Prodigy 40 points

Hello Colin，any update?

0 Colin Chen over 1 year ago in reply to Dongmei Chen

TI__Mastermind 21081 points

Hi Dongmei，

I have checked with our product engineer, the feedback is it is hard to know what exactly the material is according X-ray. Is this device you showed still working normal? And did you scan other devices to find same metal material? If so, i would think it may be the part of deice. Or if you still doubt it , you can get in touch with TI field quality engineer and send the sample to us for further check.

Thanks

Colin

0 Dongmei Chen over 1 year ago in reply to Colin Chen

Prodigy 40 points

Hello, Colin,what is deice

0 Colin Chen over 1 year ago in reply to Dongmei Chen

TI__Mastermind 21081 points

device means IC.

0 Dongmei Chen over 1 year ago in reply to Colin Chen

Prodigy 40 points

Hello, Colin, I check other devices of this part number, half have and half not. What if this material is tin?

0 Colin Chen over 1 year ago in reply to Dongmei Chen

TI__Mastermind 21081 points

Hi Dongmei,

Please get in touch with TI sales or filed quality engineer, they can help you to check it.

Thanks,

Colin

+1 Dongmei Chen over 1 year ago in reply to Colin Chen

Prodigy 40 points

Hello Colin, we removed the inductor and found tin on inudctor surface, could you please help to confirm if it's ok to use this lot? I know you recommended to find TI sales or filed quality engineer, but maybe it's faster to have an answer in forum.

0 Colin Chen over 1 year ago in reply to Dongmei Chen

TI__Mastermind 21081 points

Hi Dongmei,

I am application engineer and not sure whether it will bring risk. You should ask comments from quality engineer.

Thanks,

Colin

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LMZ21701: LMZ21701SILR