The BC858BDW-Q1-H is a high-quality PNP bipolar transistor manufactured by Formosa Microsemi. This device is designed for general-purpose amplification and switching applications. It comes in a small SOT-363 package, making it suitable for high-density circuit boards where space is a premium. Supreme Components International is an authorized distributor of Formosa Microsemi components, guaranteeing that you receive genuine and reliable parts. This transistor offers excellent performance characteristics and is a popular choice for a wide range of electronic designs. Benefit from the assurance of quality and authenticity when you purchase from an authorized distributor.