The six devices differ only in their magnetic switching values and
operating temperature ranges.  The low hysteresis of the A3046/56EU
and A3046/56LU makes them perfectly suited for ABS (anti-lock brake
system) or speed sensing applications where maintaining large air
gaps is important.  The A3046EU/LU features improved switch point
stability with temperature over the A3056EU/LU.  The high hysteresis
of the A3058EU and A3058LU, with their excellent temperature
stability, makes them especially suited to ignition timing applications
where switch-point accuracy (and latching requirements) is extremely

BENEFITS
s    Senses Ferrous Targets Down to Zero RPM
s    Large Effective Air Gap
s    Wide Operating Temperature Range
s    Operation from Unregulated Supply
High-Speed Operation
s    Output Compatible With All Logic Families
Reverse Battery Protection
s    Solid-State Reliability
Resistant to Physical Stress