DiodesZetex Voltage Supervisor 3-Pin Surface Mount SOT-23 Package 4 V Monitored Voltage APX809-40SAG-7

DiodesZetex APX809-40SAG-7 is a voltage supervisor IC designed for microprocessor supply voltage monitoring and reset control. It comes as a surface mount device with 3 pins in a compact SOT-23 package measuring 3 mm x 1.4 mm x 1 mm. This supervisor monitors a 4 V line and provides an active low reset output signal to ensure microprocessors operate within safe voltage ranges.

Operating temperature ranges from -40°C to 85°C, making the device suitable for industrial, laboratory, computing, and portable battery-powered applications. The device supports a minimum supply voltage of 1.1 V up to a maximum of 5.5 V. Its reset active time of 280 ms ensures reliable reset signaling during voltage dips or power interruptions.

This voltage supervisor is commonly used in power management IC subsystems for computers, test and measurement instruments, and multiple-output power supplies. The compact footprint and surface mount design enable efficient PCB layouts and automated assembly.

Monitors supply voltage with 4 V reset threshold. Active low reset output driver for dependable signaling. Temperature operating range: -40°C to 85°C. Compact SOT-23 surface mount package for space-saving designs. Reset active time: 280 milliseconds.

Supports low minimum supply voltage of 1.1 V and max 5.5 V. Ideal for microprocessor supervisory and reset circuits in diverse electronics.

Industrial, laboratory, and manufacturing sectors rely on such voltage supervisors for reliable power line monitoring and protection. This device is suited for applications including desktop and notebook computers, portable equipment, and power supplies where voltage supervision is critical.

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