KMI23: High performance rotational speed sensor

Based on the Anisotropic MagnetoResistive (AMR) effect, the KMI23/2 and the KMI23/4 detect the rotational speed of target wheels. The KMI23/2 is used with active target wheels (multipole encoders) and the KMI23/4 is used with passive target wheels (ferromagnetic gear wheels). This design delivers secure speed information over a wide range of speed, air gap and temperature. It delivers the speed information via a current protocol at the supply pins.

sot453a_3d
Data Sheets (1)
Name/DescriptionModified Date
High performance rotational speed sensor (REV 1.0) PDF (287.0 kB) KMI23_2_428 Apr 2016
Application Notes (1)
Name/DescriptionModified Date
Handling instruction SOT453/SOT477 sensors (REV 1.0) PDF (1.2 MB) AN1173712 Jul 2016
Package Information (1)
Name/DescriptionModified Date
plastic single-ended multi-chip package; magnetized ferrite magnet (3.8 x 2 x 0.8 mm); 4 interconnections; 2 in-line... (REV 1.1) PDF (191.0 kB) SOT453A03 May 2016
Ordering Information
ProductStatusPackage versionOutput typeOperating Temperature (Cel)
KMI23/2ActiveSOT453A
KMI23/4ActiveSOT453A
Package Information
Product IDPackage DescriptionOutline VersionReflow/Wave SolderingPackingProduct StatusPart NumberOrdering code(12NC)MarkingChemical ContentRoHS / Pb Free / RHFLeadFree Conversion DateMSLMSL LF
KMI23/2SOT453AReel 13" Q4/T2ActiveKMI23/2Z (9340 701 03139)Standard MarkingKMI23/2Always Pb-free11
KMI23/4SOT453AReel 13" Q4/T2ActiveKMI23/4Z (9340 701 04139)Standard MarkingKMI23/4Always Pb-free11
High performance rotational speed sensor KMI23
Handling instruction SOT453/SOT477 sensors KMI25
plastic single-ended multi-chip package; magnetized ferrite magnet (3.8 x 2 x 0.8 mm); 4 interconnections; 2 in-line... KMI23