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OPA277: OPA277

Helen Hng
Prodigy 40 points
Part Number: OPA277

Tool/software:

Please check the below part, we received marking - not sure it's correct marking.

 

CPN: COB24-205189-277

PO SPO016220

Assembly site code : A = ?

Assembly site code : K = ?

Spec datasheet: OPA 277U A

               Actual: OPA 277U K

 

Is it the correct part?

 

 
  • 0
    Guru 317450 points

    "A" indicates the cheaper variant with worse electrical characteristics. TI shipped you non-A chips for logistical reasons because you're a nice customer.

    "K" probably indicates the assembly site; there is only one (Malaysia).

  • 0
    TI__Guru* 77521 points

    Hi Helen,

    Please check out Clemens comments. UA with "A" is the lower grade of the screened OPA277 amplifiers. U is higher grade and the cost may be slightly higher than UA grade in general. 

    If you have other questions, please let us know. 

    Best,

    Raymond