A3282EUA

A3282EUA is a type of solid state magnetic switch, which is usually used in the detection of current, speed or some other magnetic field based application. It is a standard magnetic switch designed and manufactured by Allegro. The A3282EUA operates using a Hall effect integrated circuit, which detects the presence of magnetic fields. It is made with a self-contained construction and includes the integrated Hall effect component, along with a switching transistor and a printed circuit board.

The A3282EUA is a reed switch activated by a magnetic field of a certain strength and range. This switch has a rated magnetic field strength of around 700 mT (7 gauss), with a hysteresis of about 11 mT (0.11 gauss). Its range of activation is between 0.25 to 0.45 mT (2.5 to 4.5 gauss). Once it is activated by a magnetic field of this range and strength, the circuit inside the switch is completed, and the switch changes state.

The A3282EUA is a useful tool for detecting the presence of a magnetic field in a variety of applications. It is commonly used in home security systems, where it can be used to detect the presence of a magnetized door latch or window. It can also be used to detect the presence of current, speed, or a number of other magnetic fields. One interesting application is in metal detection; by using a small, sensitive A3282EUA, a person can detect the presence of metals, such as coins or other valuable items.

For applications requiring higher sensitivity and lower contact resistance, different versions of the A3282EUA are available, such as the A3288EUA, which has a maximum activation field strength of 1 mT (10 gauss) and a hysteresis of 3 mT (0.03 gauss). This switch is ideal for sensing small changes in magnetic fields, as it is much more sensitive than the A3282EUA. In these circumstances, the slightly higher contact resistance of the A3288EUA is not an issue.

In summary, the A3282EUA is a proven and reliable Hall effect-based solid state magnetic switch. It is ideal for applications that require the detection of relatively strong magnetic fields, such as in home security systems or metal detectors. For applications requiring higher sensitivity, different versions of the switch are available. Regardless of the version used, the A3282EUA is an economical and reliable solution for magnetic field detection applications.