AS5304 Magnet Specification

2013-Sep [1-00]

page 6/7

Figure 4

Markings at the backside of the magnet

7

Mounting the Magnet Ring

As mentioned in chapter 5, the magnet ring has two markings, which represent the backside of the

ring. The front side should be facing the AS5304 IC with a gap of <lp/2 = <1.0mm.

The magnet ring may be mounted directly on magnetic or non-magnetic surfaces. When magnetic

surfaces are used, the ring may be mounted on top of the surface, but not immersed in a cavity, as

this may weaken the magnetic field of the magnet. When mounting the magnet on a non-magnetic

surface, either method is acceptable.

Depending on the carrier material, there are several adhesives available to glue the ring to the

surface. For general ruggedness and vibration demands, the use of two-component-adhesive

(binder + hardener) has proven to be successful in most cases.

For more rigid demands, magnet suppliers offer customized solutions where the magnet material is

directly overmolded on the carrier, e.g. a shaft, bushing, plate, etc.

Please contact your magnet supplier for more information. A list of recommended suppliers is

available for download on the ams website.

8

Magnet Supplier Information

Bomatec AG

Hofstrasse 1

CH-8181 Höri

Tel. +41 44 872 10 00

www.bomatec.ch