The MICROCHIP TECH. MCP121T-195I/TT is a voltage supervisor designed to ensure reliable system operation by monitoring the system voltage and keeping a microcontroller in reset until the voltage reaches a stable level. It includes a reset delay timer and is available in SOT23-3, TO-92, and SC-70 packages. Applications include computers, intelligent instruments, and portable battery-powered equipment. The device offers precision monitoring options and resets the microcontroller in the event of a power loss.