The 1SMA4747_R1_00001 is a Zener Diode SMA RoHS (Restriction on Hazardous Substances) manufactured by Panjit. It is a semiconductor device, possessing two electrical terminals and one junction, allowing higher voltage waves to flow in one direction while blocking the flow in the other direction. Employed in power supplies and other electronic circuits, it ensures that the voltage output of the electrical circuit remains constant, even when the input voltage fluctuates, by absorbing the excessive current. It is an SMA (Surface Mounted Device) component, making it suitable for applications where small size and minimal space are desired, and has a RoHS (Restriction on Hazardous Substance) certification, meaning that it has no hazardous constituents or chemically hazardous elements.