SRF2012A-221YA is a shielded common mode chip inductor from Bourns' SRF2012AA series designed for electromagnetic interference (EMI) filtering and noise suppression in high-speed digital and analog circuits. The device features a bifilar wound construction with 220 O impedance at 100 MHz (±25% tolerance), a typical DC resistance of 0.30 O, and a maximum rated current of 300 mA RMS. It operates across a wide temperature range from -55°C to +125°C with a rated voltage of 50 VDC and withstanding voltage of 125 VDC, making it suitable for demanding automotive and industrial applications. The component is AEC-Q200 compliant, RoHS compliant, and halogen-free, providing reliable performance in common mode filtering for data lines, USB interfaces, and other high-frequency signal paths where EMI suppression is critical.