CODING INTERNATIONAL CO LTD

The AH1902 is an omnipolar device, sensing both north and south rod magnets. In default function, the programmable AH1903 operates as a unipolar device, detecting a south post at the part marked package surface. The unit also offers an omnipolar setting, enabling it to fulfill the needs of multiple apps and to be transformed ‘on the fly’ in the event of a field direction issue. The AH1903 perform is changed via a straightforward select pin, driven by an external judgement source or microcontroller.

Our prime sensitivity of the two switches means sluggish magnets can be employed or perhaps detection distances expanded; the switches’ typical running threshold switch stage being ±35G.

Designed to provide with a low voltage provide, these latest Corridor switches from Diodes can operate over the variety 1.6V to 3.6V. This particular factor, coupled with an intrinsic sleep function as well as a typical current consumption figure of 4.3μA, makes them a good performer throughout battery-powered applications.

To aid merchandise miniaturization, the switches are supplied in a choice of space-saving low account surface mount deals. The omnipolar AH1902 comes in the DFN1216-4, ultra-thin DFN2015-6 and also SOT553 packages. And in the 1.2×1.6×0.5mm DFN1216-4 package, the AH1903 could be the industry’s smallest omnipolar/unipolar automated Hall Effect switches.

To accommodate a wide range of hand-held applications, these kinds of high-reliability switches have an 8kV electrostatic eliminate withstand capability and provide good immunity for you to RF noise as well as other circuit stresses. Operating as well as release points will also be highly stable on the temperature range -40ºC in order to +85ºC, and with a very cold coefficient, the switches are immune to early or late switching.