Digital Earth Leakage Current Detector IC

Data Sheet


  • Power Supply VDD (4.0V to 5.5V)
  • Operating Temperature (-40°C to 105°C)
  • Built-in High Precision ADC (14-Bit)
  • Sinc3 Digital Filter (-3dB Frequency = 150Hz)
  • Internal Power Supply (
  • Earth Leakage Detector Condition (TMD)
    (Type A / Type AC switchable)
  • Five times trip level detection (
    NJU9102: Immediate response
    NJU9102A: No immediate response)
  • Control Circuit (
    Earth Leakage Detector Condition (TMD)
    Sampling Counter (SCRT))
  • Package (DMP8)

General Description

NJU9102/A is a digital detector IC for earth leakage current breaker. The built-in ADC converts from an analog signal from ZCT (Zero-phase-sequence Current Transformer) to digital data, and processes digital data based on an earth leakage current detector condition. As a result of data processing, NJU9102/A outputs a one-shot pulse on SCRT terminal when an analog signal is judged to a leakage condition, and turns on an external thyristor.


  • Earth Leakage Current Breaker

Package Information

Part Number Package Outline PLP Pins Terminal Finish Weight(mg) (Reference) Reflow soldering Flow soldering Iron soldering Packing Condition MSL Solder Foot Print
NJU9102M DMP8 - 8 Sn2Bi 95 Yes Yes Yes Non dry pack 1

Sample & Buy

Part Number Packages Status Packing Specification Sample Buy
NJU9102M DMP8 (Active) Contact Us Stock Check

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