ROHM Surface Mount Hall Effect Sensor, HVSOF, 5-Pin

Bipolar Latch Hall IC detects polarity change for S and N. The operation is more stable comparing to magnetic force detection (The duty on output pulse will be consistent). It is perfect fit as an interface to wheel key and track ball application.

Ideally suited for wheel keys or trackballs
Micropower operation (small current consumption via intermittent operation method)
Ultra-small outline package HVSOF5
Supports 1.8 V supply voltage
High ESD resistance: 8kV (HBM)
Applications:
MFP(Multi Function Printer)
Car Audio
Digital Still Camera
Home Audio
Mobile Phone
Portable Audio
Digital Video Camera
Smartphone / Tablet Pcs