TPS7H4002-SP: Discoloration Issue 1 of 2

Robert Charbine

Prodigy 160 points

Part Number: TPS7H4002-SP

Tool/software:

The full part number is TPS7H4002HKH/EM. Have discoloration on their welds.

what the cause of discoloration could be and if it is safe to use as is?

1 month ago

0 Sarah Koch 1 month ago

TI__Genius 9980 points

Hi Robert,

I just replied to your other post as well, but I will also put the same information here.

There are two general reasons why discoloration can happen with units:
1. Oxidation

2. Salt in the atmosphere.

In either case, TI has done testing on discolored units and they have passed lead-fatigue/solderability tests.
Our stance is that discolored units do not impact package integrity, lead integrity, or solderability degradation.

Thanks,
Sarah

0 Robert Charbine 1 month ago in reply to Sarah Koch

Prodigy 160 points

Thanks Sarah. I'll feed this information to our customer.

Regards,

0 Sarah Koch 1 month ago in reply to Robert Charbine

TI__Genius 9980 points

Sounds good. Thanks Robert.

All the best,

Sarah

Data converters

Data converters forum

TPS7H4002-SP: Discoloration Issue 1 of 2