The SD25-3R3-R is a surface mount power inductor manufactured by Eaton Bussmann. This inductor is designed for use in a variety of power supply and filtering applications. Its compact size and high performance make it suitable for modern electronic devices where space is limited.

Applications:

• DC-DC Converters: Used in buck, boost, and flyback converters for power regulation.
• Power Supplies: Filtering and energy storage in various power supply designs.
• LED Lighting: Filtering and energy storage in LED driver circuits.
• Noise Filtering: Suppression of electromagnetic interference (EMI) in electronic circuits.
• Signal Filtering: Attenuation of unwanted frequencies in signal processing applications.
• Automotive Electronics: Power management and filtering in automotive systems.

Features:

• Surface Mount Design: Allows for easy assembly on printed circuit boards (PCBs).
• Compact Size: Small footprint for use in space-constrained applications.
• High Current Capacity: Handles high current levels without saturation.
• Low DC Resistance: Minimizes power losses and improves efficiency.
• Shielded Construction: Reduces electromagnetic interference (EMI).
• Wide Operating Temperature Range: Suitable for use in various environmental conditions.
• RoHS Compliant: Meets environmental standards for hazardous substances.

Benefits:

• Improved Power Efficiency: Low DC resistance reduces power losses.
• Reduced EMI: Shielded construction minimizes electromagnetic interference.
• Reliable Performance: Designed for stable and consistent performance.
• Compact Design: Saves space on PCBs, allowing for smaller devices.
• Easy Assembly: Surface mount design simplifies the assembly process.

Additional Details:

The SD25-3R3-R has an inductance value of 3.3 µH (microhenries). The 'R' at the end of the part number typically indicates RoHS compliance. This inductor has a specified saturation current rating, which is the maximum current it can handle before its inductance value significantly decreases. It also has a rated current, which is the continuous current it can handle under specified operating conditions. The inductor is typically made with a ferrite core, which provides high permeability and helps to increase the inductance value. The shielded construction helps to contain the magnetic field and reduce electromagnetic interference. The surface mount design allows for automated assembly, reducing manufacturing costs and improving reliability. This component is a critical element in power management circuits, providing stable and efficient performance in various electronic devices. The inductor's small size and robust design make it a popular choice for a wide range of applications.