The ST3934 is a surface mount power inductor manufactured by Pulse Electronics. It is designed for use in DC-DC converters and other power supply applications. It offers a compact size and high current handling capability.

Applications:

• DC-DC converters in portable devices
• Power supplies for networking equipment
• Voltage regulators in industrial controls
• Point-of-Load (POL) converters
• Filtering in power circuits

Features:

• Surface mount packaging for automated assembly
• Low DC resistance for high efficiency
• High saturation current for handling peak loads
• Shielded construction to minimize EMI
• Compact size for space-constrained applications

Benefits:

• Improved efficiency in power conversion circuits
• Reduced board space requirements
• Minimized electromagnetic interference (EMI)
• Enhanced thermal performance
• Increased system reliability

Additional Details:

The ST3934's inductance value, saturation current rating, and DC resistance are critical parameters for selecting the appropriate inductor for a given application. Consult the Pulse Electronics datasheet for the ST3934 for detailed electrical characteristics, temperature ratings, and recommended PCB layout guidelines. Proper PCB layout is essential to minimize parasitic inductance and capacitance. The inductor's core material is typically a ferrite or powdered iron. The shielded construction helps to contain the magnetic field and reduce the radiation of EMI. The surface mount package allows for automated assembly, reducing manufacturing costs. When selecting a power inductor, consider the operating frequency, current requirements, and environmental conditions.