Littelfuse CF1P021N & CF1P022N Current Sensors

Littelfuse CF1P021N and CF1P022N Current Sensors implement Closed-Loop Fluxgate technology in a very small package. The current sensors offer PCB mounting, a high linear output, and high accuracy across the -40°C to +105°C operating temperature range. The high-performance Littelfuse CF1P021N and CF1P022N Current Sensors are an ideal solution for a wide range of applications.    

Features

  • Closed-loop Fluxgate sensor
  • Single +5V power supply
  • Voltage output
  • Wide measuring range
  • PCB through-hole mounting
  • -40°C< T <+105°C operating temperature range
  • ±25A/±50A primary nominal RMS current
  • Up to ±85A/±150A primary measuring range
  • Standards
    • EN50178: 1997
    • IEC61010-1: 2010
    • UL 508: 2013

Applications

  • Static converters for DC motor drives
  • Solar inverters
  • AC variable speed drives
  • Servo motor drives
  • Battery-supplied applications
  • Uninterruptible Power Supplies (UPS)
  • Switched Mode Power Supplies (SMPS)

CF1P021N Block Diagram

Block Diagram - Littelfuse CF1P021N & CF1P022N Current Sensors

CF1P022N Block Diagram

Block Diagram - Littelfuse CF1P021N & CF1P022N Current Sensors
Published: 2026-03-25 | Updated: 2026-03-31