Accurately everywhere

Closed Loop Hall effect current sensors performing at the level of Fluxgate technology without the added cost.




Main characteristics:

  • DC, AC and pulse currents measurements with galvanic isolation from 1.5 to 50 ARMS nominal (6A, 15A, 25A and 50A models)
  • 22 multi-range models for 6 families
  • Low offset drift between 4 to 14 ppm/°C
  • Attractive price
  • PCB mounting in various footprints (3 or 4 primary pins with various layouts)
  • With aperture and/or integrated primary conductors
  • Compact design
  • High overall accuracy at +105°C up to 2%


  • Single supply 0, +5 V
  • Isolation test voltage: up to 4.3KVRMS / 50 Hz / 1 min
  • Operating temperature range: -40°C to +85°C...+ 105°C
  • Voltage output
  • Fast response time <0.4 µs
  • LXSR & LESR & LKSR & LPSR: Reference access on additional pin
  • LPSR & LKSR: Different primary footprint with 4 pins for higher creepage and clearance distances (9.9 mm) for higher insulation
  • LPSR: Overcurrent detection output included
  • LXS & LXSR: Primary integrated conductors + aperture
  • 100% fully compatible vs LEM LTS - LTSR - CAS - CASR - CKSR models (previous generation)

Download technical article: Closed loop current transducers with excellent performance are also cost-effective.

Product page



Product list            
LXS Click here for LXS family
LXSR Click here for LXSR family
LES Click here for LES family
LESR Click here for LESR family
LKSR Click here for LKSR family


Click here for LPSR family