The component is used to create the EAN/UPC Add On 5 barcode symbol. It's defined in the pEAN5 unit.
The EAN/UPC Add On 2 barcode symbology is also known as EAN Supplement 5/Five-digit Add-On, EAN+5, UPC Supplement 5/Five-digit Add-On, UPC+5, etc. It is designed to encode information supplementary to that in the main barcode symbol on periodicals, hardback, and paperback books. It may be used specific applications to accompany an EAN-8, EAN-13, UPC-A, or UPC-E (including UPC-E0 and UPC-E1) barcodes. In general, it is positioned following the right Quiet Zone of the main barcode symbol. And It is often used for the price of books together with the ISBN code.
(*): The Data property, OnInvalidDataLength and OnInvalidDataChar events are available only for the Delphi/C++ Builder 2009 or later.