AH951 is an open-loop current sensor module based on the Hall effect principle, providing a more economical and accurate solution for AC or DC detection. It is widely used in industrial, commercial, and communication systems for AC or DC current detection. This product can be used for motor control, load detection and load management, power supply and DC-DC converter, Solar inverter, UPS, over-current protection, medium and low power inverter current detection and other applications. This product consists of a high-precision, low noise, low temperature drift linear Hall IC, magnetic core, and low insertion resistance (0.15m Ω) current conductor path (located near the mold surface). The applied current flowing through this conductor path will generate a magnetic field, which the chip will convert into a voltage signal output proportional to the input current. All pins are tin plated, the packaging material is lead-free, and complies with RoHS standards. The operating temperature range is -40 ℃~105 ℃, and the power supply voltage range is 4.5~5.5V.