The FM551V-NL1-H voltage detector, manufactured by Formosa Microsemi, is a crucial component for ensuring stable and reliable power management in electronic circuits. Supreme Components International is an authorised distributor of Formosa Microsemi components. This single-channel voltage detector monitors voltage levels up to 5.5V and utilizes CMOS technology for low power consumption. Housed in a small SOT-23-3 package, the FM551V-NL1-H is easy to integrate into space-constrained applications. It is commonly used for over/under voltage detection, battery monitoring, and system reset functions in microcontrollers, portable devices, and other voltage-sensitive systems. Its precise threshold voltage and low quiescent current make it an excellent choice for extending battery life and preventing system malfunctions due to voltage fluctuations. The FM551V-NL1-H offers a robust and cost-effective solution for voltage monitoring needs.