This MAX809SQ308T1G microprocessor supervisory circuit from ON Semiconductor works to keep your circuit safe if something happens to your main processor. This product will be shipped in tape and reel packaging for quick mounting and safe delivery. This part has a minimum operating temperature of -40 °C and a maximum of 105 °C. This device has a minimum operating supply voltage of 1.2 V and a maximum of 5.5 V. It has a typical reset threshold voltage of 3.08 V, with a minimum of 3.04 V and a maximum of 3.11 V.