2N4957 is a bjt component manufactured by Advanced Semiconductor Inc, supplied in TO-72 package, of type Discrete Semiconductor. 2N4957 is marked Obsolete — exactly the hard-to-find, end-of-life inventory ZD Integrated Circuits specializes in sourcing globally. Live availability is shown below from multiple sourcing channel(s).
PNP Bipolar RF Transistor, 30V Vceo, 30mA Ic, TO-72
2N4957 is marked Obsolete. Obsolete and end-of-life parts carry elevated counterfeit risk — ZDI sources these through vetted channels with inspection and traceability.
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