|For example:||2203.1523.090 is an 1523 ReedSwitch,
with pull-in sensitivity between 90-105AT (90+3*5AT);
2201.1917.065 is an 1917 Reed Switch,
Normally Closed and Bistable Reed Switches:
All Reed Switches are available in a normally closed or bistable version.
Pull In Sensitivity Tolerance:
The given pull-in sensitivity of the Reed Switch has a test equipment tolerance of ± 2 AT.
used for Reed Switch magnets are generally ALNICO (an aluminium nickel cobalt alloy), a ceramic (barium ferrite or another metal oxide) or rare earth magnets. Due to their specific magnetic characteristics, the types of magnets differ in shape: ALNICO magnets are bar magnets with a length/diameter ratio of 3/1 to 5/1; oxide magnets are generally disc or moulded magnets.
Also important to note is the difference in temperature coefficient: ALNICO: 0.02 %/K, oxide: 0.2 %/K.