ECMT1V2017H-300-R is a through-hole common mode choke featuring a closed magnetic path that reduces conductive EMI emissions in industrial IoT equipment, motion controls, power supplies, and renewable energy applications. The device delivers 30 mH open circuit inductance with a maximum DC resistance of 0.9 O and supports an RMS current of 0.8 A, with a self-resonant frequency of 160 kHz. It is rated for 250 Vac operation with high voltage isolation between independent winding sections, providing 1500 Vac coil-to-coil and 1000 Vac coil-to-core hi-pot ratings. The component operates reliably across -40°C to +125°C ambient temperature range and features robust construction with RoHS compliance and halogen-free materials, making it suitable for medical equipment, smart meters, solar/wind inverters, and high-tech consumer appliances.