The bipolar Hall-effect switches generally switch on with a south pole of sufficient strength and switch off with a north pole of sufficient strength however the output state is not defined if the magnetic field is removed. Some bipolar Hall-effect switches will change the output state and some sensors will not. These Hall-effect switches are designed for magnetic actuation using a north-south alternating field, multi-pole ring magnet.
| Part Number | Operate Point (G) | Release Point (G) | Hysteresis (G) | Temperature Ranges | Packages | Comments |
|---|---|---|---|---|---|---|
| A1201 | -40 to 50 | -50 to 40 | 5 to 55 | E, L | LH, UA | Replaces A3134 |
| A1202 | <75 | >-75 | >30 | E, L | LH, UA | Replaces UGx3133 |
| A1203 | <95 | >-95 | >30 | E, L | LH, UA | Replaces UGx3132 |
| A1205 | -40 to 50 | -50 to 40 | 5 to 55 | E, L | LH, UA | Replaces A3134 |
| A3230 | -10 to 25 | -25 to 10 | 5 to 25 | E, L | LH, UA | Chopper-stabilized |
