Inductors and magnetic beads are applied in industrial control motherboards (commonly used for industrial control PLCs, servo drives, IO boards, and frequency converters)
Core distinction
Power inductance: energy storage+low-frequency filtering (several kHz~20MHz), used for DC-DC power conversion, suppressing low-frequency ripple, and can carry high currents;
Common mode inductance: AC/DC input EMI filtering, filtering out common mode interference on power lines;
Magnetic beads: high-frequency noise absorption (≥ 10MHz~GHz), high-frequency noise heat dissipation, no energy storage, digital power supply, signal line high-frequency noise reduction. 2、 Characteristics of Industrial Control Selection (Different from Consumer Electronics)
Temperature: -40 ℃~125 ℃ wide temperature range, suitable for high and low temperature environments in control cabinets;
Impact resistance: resistant to voltage surges, with a margin of 1.5-2 times the rated current;
Moisture resistance: The magnetic core and skeleton are resistant to condensation, meeting the wet and hot working conditions of industrial control cabinets.
