The BLM15PX121SN1D is an EMI filter bead produced by Murata Electronics. It is designed for EMI suppression in electronic circuit boards. The filter bead has a 0402 package size, a resistance of 120 ohms, a rated current of 2000mA, and a tolerance of -25%. It is designed for applications such as EMI power line noise suppression, and signal line noise suppression. It offers superior peak current and temperature characteristics, high rated current and reliable performance.