AS5304 Magnet Specification

2013-Sep [1-00]

page 3/7

M: Magnet

R: Ring

S: Strip

Number of poles

Nominal pole length in 1/10 mm

AS5304 = 20 (2.0mm)

AS5306 = 12 (1.2mm)

MR20-44

The correct measurement radius for the MR20-44 magnet ring is therefore:

π

*

2

_

_

*

)

(

_

poles

of

number

mm

length

pole

rm

=

mm

rm

00

.

14

*

2

44

*

0

.

2

=

=

π

Figure 2

Proper placement of the ring magnet (not to scale)

median Hall sensor

scan path