W rth Elektronik CMC 20MH 500MA 2LN TH (744821120) - High-Performance Common Mode Choke for EMI Suppression 2024-09-07 Discover the W rth Elektronik CMC 20MH 500MA 2LN TH (744821120), a high-performance common mode choke designed for effective EMI suppression in power lines. Features 20mH inductance, 500mA current rating, and wide operating temperature range.