You may notice STMicroelectronics LD2981 part numbers are not printed on the part, but also that the markings may vary from reel to reel. One reel may have the markings “OP133” and the other reel may have markings “OP942” on the part (or other variation). Don’t worry, this is correct. This may also apply for other versions of the STMicro op amps.
See our product managers response to this:
“Yes 0P is correct the rest is tracability info so it will change with each order.”
Applicable Part Numbers
497-7784-2-ND,497-7784-1-ND,497-7784-6-ND
497-7785-2-ND,497-7785-1-ND,497-7785-6-ND
497-1522-2-ND,497-1522-1-ND,497-1522-6-ND
497-3483-2-ND,497-3483-1-ND,497-3483-6-ND
497-7787-2-ND,497-7787-1-ND,497-7787-6-ND
497-7786-2-ND,497-7786-1-ND,497-7786-6-ND
497-1525-2-ND,497-1525-1-ND,497-1525-6-ND
497-1524-2-ND,497-1524-1-ND,497-1524-6-ND
497-1521-2-ND,497-1521-1-ND,497-1521-6-ND
497-3484-2-ND,497-3484-1-ND,497-3484-6-ND
497-1520-2-ND,497-1520-1-ND,497-1520-6-ND
497-1519-2-ND,497-1519-1-ND
LD2981ABM38TR-ND
st micro
micro
stmicro
497-3482-2-ND,497-3482-1-ND
LD2981CU18TR-ND
497-1523-1-ND
LD2981ABM30TR
LD2981CM30TR
LD2981ABM50TR
LD2981CU33TR
LD2981CM50TR
LD2981CM33TR
LD2981ABU50TR
LD2981ABU33TR
LD2981ABM33TR
LD2981CU50TR
LD2981ABM25TR
LD2981ABM18TR
LD2981ABM38TR
LD2981CM18TR
LD2981CU18TR
LD2981ABU18TR