SC9621 Speed Sensor IC



The differential Hall Effect sensor SC9621 provides a high sensitivity and a superior stability over temperature and symmetrical thresholds in order to achieve a stable duty cycle. The integrated circuit is response to changing differential magnetic fields created by rotating ring magnets and by ferrous targets when coupled with a magnet. The device is particularly suitable for rotational speed detection and timing applications of ferromagnetic toothed wheels, such as, anti-lock braking systems, transmissions, crankshafts, etc.
The device is packaged in a 4-pin plastic SIP. It is lead (Pb) free, with 100% matte tin plated lead frame.


  • Integrated filter capacitor
  • Accurate true zero-crossing switch-point
  • South and North pole pre-induction possible
  • Large air gap
  • 3.8 to 24V supply operating range
  • -40℃-150℃ temperature range
  • Protection against over-voltage in all PIN
  • Reverse-current protection in VDD PIN

Seal & Selection

Item Packing Seal Working Temperature Marking
SC9621VB 500pcs/Bag SIP4 -40℃ to 150℃ 9621

Demo Boards

Tool & Source