Functional Description :
The W202 integrates Hall sensing element, linear amplifer, sensitivity controller and emitter follower output stage.It accurately tracks extremely small change in magnetic flux density –generally too small to operate Hall effect switch.
W202 can be applied as current sensor, tooth sensor, proximity detectors and motion detectors. As sensitive monitor of magnetic flux, it can effectively measure a system’s performance with negligible system loading while providing isolation from contaminated and electrically noisy environments.

FEATUREs:
● Wide operating range 3.0~12V, -40℃ ~125℃
● Flat Response to 23k Hz
● Low operating current 3mA
● High Sensitivity
   Sensitivity: 10mV/Guass (Differential output) on 3V
   Sensitivity: 20mV/Guass (Differential output) on 5V
● Two package styles TO-94/SOT-25 available.