This miniaturized through-core current sensor belongs to the TFY-CSB-NZ1 series Tunnel Magnetoresistance (TMR) current sensors developed by Ningbo Taifengyuan Electric. It has a primary rated current of 5A and a maximum current of 60A. Featuring an accuracy of ±0.2% at Ta=25℃, linearity lower than 0.1%, bandwidth exceeding 100kHz and a response time of merely 1μs, it adopts low-power ±3.3V power supply and can operate stably in environments ranging from -40℃ to 85℃. It is applicable to scenarios with strict requirements on size and precision such as smart electricity meters and power monitoring.
Symbol | Name | Parameter |
pn | Primary Rated Current | 5A |
Imax | Maximum Current | 60A |
IM | Secondary Rated Current | 2mA |
KN | Transformation Ratio | 1:2500 |
X | Accuracy (Ta=25°C) | ±0.2% |
L | Linearity | <0.1% |
di/dt | Follow Accuracy | >100A/μs |
off | Offset Current | ±0.3mA |
BW | Bandwidth | >100kHz (-3dB) |
t | Response Time | 1μs |
Vc | Supply Voltage | ±3.3V (±5%) |
Ic | Current Consumption | 2.0mADC+I/KN |
ta | Operating Temperature | -40°C ~ 85°C |
ts | Storage Temperature | -55°C ~ 100°C |
