Current Sensor

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HM-Z Small current range / PCB-mounting type

CERoHS compliant







  • Rated current: 300mA, 600mA
  • Optimum for direct current leakage detection application for power conditioning systems etc.
  • Minute direct electric current detectable by electric wire penetration
  • Small offset drift


Power conditioning systems, Inverters, Servo drivers


Output type Voltage output type
Type HM-Z003V12PP5 HM-Z006V1486PP5
Rated current [If] ±300mA ±600mA
Continuously flowing DC current ±500mA ±850mA
Saturation current [Is] ±520mA ±870mA
Linearity limits 0~±500mA 0~±850mA
Internal reference voltage [Vref] (I=0) +2.5V±5mV
External reference input voltage [Vref] 1.5~4V
Rated output RL>500kΩ [Vh] (I=If, output-Vref) V0±1.2V±1.6% V0±1.4856V±1%
Residual output [V0] (I=0, output-Vref) Within ±96mV Within ±60mV
Output linearity Within ±1%
Response time Within 50μs (at di/dt=If/μs) Within 30μs (at di/dt=If/μs)
Response performance Within 10%
Hysteresis voltage range Within 10mV
Output Temp. Coef. Within ±0.04%/℃ Within ±0.01%/℃
Residual output Temp. Coef. Within ±1.425mV/℃ Within ±1.3mV/℃
Internal reference voltage Temp. Coef. Within ±0.125mV/℃
Control power supply +5V±5%
Consumption current 25mA+(Input current/1000)
Degauss mode Operates when control power is turned on or at the time of recovery from external Vref input 0.8V or less.
Operating Temp. -40℃~+105℃
Storage Temp. -40℃~+105℃
Dielectric withstand voltage 3500V AC 50/60Hz 1minute
Insulation resistance Not less than 500MΩ 500V DC

Note1)The indicated residual output is the one after the core hysteresis is removed.

Note2)Energization time of continuous live DC current x150% shall be within 1 minute.

Note3)In this specification, accuracy was determined with reference to the reference voltage (Vref).

Note4)For the reference voltage, there are 2 types of modes of internal reference output and external reference input.