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© KEMET Electronics Corporation • One East Broward Boulevard

SE0227_FG-R14 • 1/27/2025

Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com

Current Sensors – Fluxgate-Based Residual Current Sensor, FG-R04 Series

Handling Precautions

Precautions for Product Storage

Current sensors should be stored in normal working environments. While the sensors are quite robust in other

environments, exposure to high temperatures, high humidity, corrosive atmospheres, and long-term storage degrade

solderability.

KEMET recommends that maximum storage temperature not exceed 85°C and atmospheres should be free of chlorine

and sulfur-bearing compounds. Temperature fluctuations should be minimized to avoid condensation on the parts. Avoid

storage near strong magnetic fields, as they can magnetize the product and cause its characteristics to change. Limit

ambient magnetic fields to 50e or less.

For optimized solderability, the stock of current sensors should be used within 12 months of receipt.

Before Using Fluxgate-Based Residual Current Sensors

• Do NOT drop or apply any other mechanical stress, as such stresses may change performance characteristics.

• Do NOT exceed 260°C for 10 seconds when soldering. This is the maximum heat resistance grade of these sensors. Use a

low-corrosion type flux when soldering.

• Do NOT allow strong static electricity near the sensor, as the circuit uses ICs. Static electricity can cause damage. Take

static electricity precautions when handling.

• The case is Insulation Materials Group III. When desiging the primary wire, be careful of clearance and creepage distance

from the input/output terminal.