The datasheet is valid for all members of the BC5xx line, unless it explicitly mentions important differences. Yet, it does also bring the reader’s attention to some important differences. From the BC546 through the BC550, the datasheet focuses on the similarities between these components. The BC547 datasheet is unusual because instead of describing a single component, it describes a large group of related components, including the BC547. The key difference between components in the BC5xx line is their different tolerances for base, collector, and emitter voltages. Each of these variants is optimized for different voltage and noise levels, although they have the same basic physical structures as other components in the BC5xx line. The BC547, according to its datasheet, has 8 variants. All of the transistors in the BC5xx line are very similar, but each has slightly different technical specifications. The BC547 is one component in a line of NTN silicon transistors provided by ON Semiconductor. Featured BC547 variants in the Ultra Librarian search engine.

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