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BC557BBU is listed in the Single Bipolar Transistors range at ChipApex. The manufacturer field lists onsemi. Its product description is TRANS PNP 45V 0.1A TO-92-3. Review the specifications below when checking this part for your BOM.
The BC557BBU is not listed in the provided documentation. Public records confirm that the BC557BTFR variant has been discontinued by onsemi, with BC557BTA and BC557BTF identified as parameter-equivalent replacements.
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