1000pcs A3144 A3144E 1 pack OH3144E 3144 Hall Effect Sensor TO-92

The A3144E(US1881) is an integrated Hall effect latched sensor. This makes for a robust presence sensor. A reed sensor also works nicely, but can be limited by the glass encapsulation and size. A hall effect sensor is much smaller, but can handle less current than a reed switch.The device includes an on-chip Hall voltage generator for magnetic sensing, a comparator that amplifies the Hall voltage, and a Schmitt trigger to provide switching hysteresis for noise rejection, and open-collector output. An internal bandgap regulator is used to provide temperature compensated supply voltage for internal circuits and allows a wide operating supply range. If a magnetic flux density larger than threshold Bop, DO is turned on (low). The output state is held until a magnetic flux density reversal falls below Brp causing DO to be turned off (high). Specification - 3.5V to 24V DC operation voltage - Low current consumption - Temperature compensation - Wide operating voltage range - Open-Collector pre-driver - 50mA maximum sinking output current - Reverse polarity protection - Lead Free Package: TO-92