Bourns Surface Mount Common Mode Choke with Ferrite Core 51 μH ±25 % 500 mA Idc, Solder Termination DR331

Bourns DR331 Surface Mount Common Mode Choke is a highly reliable passive electronic component designed for attenuation of electromagnetic interference (EMI) in data and signal lines. This choke features a ferrite core with a wirewound inductor construction providing 51 μH inductance and an inductance tolerance of ±25 %. The device supports a maximum DC current of 500 mA and exhibits a maximum DC resistance of 300 mΩ ensuring efficient current handling and minimal power loss.

The compact 0331 package measures 7.3mm in length, 4.7mm in height, and 5.4mm in depth, optimized for surface mounting on printed circuit boards (PCBs). It utilizes solder termination style and is supplied in efficient reel packaging suitable for automated assembly processes. The choke is RoHS compliant and meets UL standards, making it suitable for environmentally conscious applications and safety requirements.

Operating between a minimum temperature of -40°C and a maximum temperature of 135°C, this component is ideal for industrial, communication, consumer electronics, and automotive data line EMI suppression tasks. The maximum self resonant frequency of 1 GHz enables operation in high-frequency applications, improving signal integrity and reducing interference.

Applications include noise suppression in industrial control equipment, communication devices, and signal filtering in sensitive electronic circuits. The series DR331 offers a cost-effective open construction design that is more economical compared to shielded counterparts, making it suitable for mass production.

For design integration, Bourns provides technical documentation, 3D models, and schematics to facilitate PCB and mechanical design. This product is manufactured in Taiwan, Province Of China, reflecting high quality and consistency.

Features a ferrite core and wirewound construction. Maximum DC current rating of 500 mA. Compact 0331 surface mount package. Inductance 51 μH ±25 % tolerance. Operating temperature from -40°C to 135°C. RoHS compliant and UL approved.

Max self resonant frequency 1 GHz for high frequency use. Solder termination style suitable for PCB assembly. Explore more electronic components and Surface Mount Inductors at EnvMart for reliable industrial and commercial applications.