The DO1813H-122MLD is a power inductor manufactured by Coilcraft. It's designed for use in various DC-DC converter applications, offering efficient energy storage and filtering capabilities. Due to its END-OF-LIFE status, finding a replacement or existing stock may be difficult.

Applications

• DC-DC Converters: Used as the energy storage element in step-up (boost), step-down (buck), and other DC-DC converter topologies.
• Power Supplies: Filtering noise and regulating voltage in power supply circuits.
• Filtering Circuits: Attenuating unwanted frequencies in electronic circuits.
• LED Lighting: Providing stable current to drive LEDs.

Features

• High Current Handling: Designed to withstand high DC currents without saturation.
• Low DC Resistance (DCR): Minimizes power loss due to resistance, increasing efficiency.
• Shielded Construction: Reduces electromagnetic interference (EMI).
• Compact Size: Allows for use in space-constrained applications.
• High Inductance Value: Provides effective energy storage.

Benefits

• Improved Efficiency: Low DCR minimizes power loss, leading to higher efficiency in power conversion.
• Reduced EMI: Shielded construction minimizes electromagnetic interference, improving system performance.
• Stable Performance: High current handling and inductance stability ensure reliable operation.
• Compact Design: Small size allows for integration into compact devices.

Additional Details

The DO1813H-122MLD's key specifications include its inductance value (12μH), saturation current, and DC resistance. It is crucial to consider these specifications when selecting a replacement inductor. Because this part is listed as END-OF-LIFE, it's recommended to consult with Coilcraft or electronic component distributors to find a suitable alternative. The inductor's physical dimensions and termination style should also be considered for compatibility with the existing circuit board layout. Review the official Coilcraft datasheet for comprehensive electrical and mechanical characteristics.