Siemens FP420L90 Datasheet

Double Differential Magneto Resistor FP 420 L 90

Dimensions in mm

Features

• Double differential magneto resistor on one carrier

• Accurate intercenter spacing

• High operating temperature range

• High output voltage

Typical applications

• Incremental angular encoders

• Detection of sense of rotation

• Detection of speed

• Detection of position

• Compact construction

• Available in strip form for automatic assembly

• Optimized intercenter spacing on modules

m = 0.3 mm

• Reduced temperature dependence of offset
voltage

Semiconductor Group 1 07.96

FP 420 L 90

Type Ordering Code

FP 420 L 90 Q65420-L90 (singular)
FP 420 L 90 Q65420-L0090E001 (taped)

The double differential magneto resistor assembly consists of two pairs of magneto
resistors, (L-type InSb/NiSb semiconductor resistors whose resistance value can be
magnetically controlled), which are fixed to a silicon substrate. Contact to the magneto
resistors is achieved using a copper/polyimide carrier film known as TAB.

The basic resistance of each of the magneto resistors is 90 Ω. The two series coupled
pairs of magneto resistors are actuated by an external magnetic field or can be biased by
a permanent magnet and actuated by a soft iron target.

Semiconductor Group 2