SH137霍尔开关电路由反向电压保护器、电压调整器，霍尔电压发生器，差分放大器，史密特触发器和集电极开路输出级组成，能将变化的磁场讯号转换成数字电压输出。

灵敏度高、抗应力、电压范围宽、可和各种逻辑电路直接接口

高灵敏的无触点开关、直流无刷电机、直流无刷风机

电源电压V_{CC···························}4.5-24V

输出负载电流I_{O···················}25mA

工作温度范围 T_{A ···············}-20～85℃

贮存温度范围T_{S ················}-55～150℃