The RLF5018T-3R9M1R5 is a wound ferrite power inductor produced by TDK Corporation. It's engineered for use in power supply applications, specifically in scenarios where high efficiency and a small form factor are critical requirements.

Applications

• DC-DC converters
• Power supplies for portable electronics
• LED lighting circuits
• Voltage regulation modules
• Point-of-Load (POL) converters

Features

• Wound ferrite core structure
• High current handling capability
• Low DC resistance (DCR) for minimized power loss
• Shielded configuration to reduce electromagnetic interference (EMI)
• Compact dimensions

Benefits

• Increased power conversion efficiency thanks to the low DCR
• Reduced EMI allows for stable operation in sensitive electronic systems
• Space-saving design is suitable for compact devices
• Consistent and reliable performance across a wide temperature range
• Robust operation in power supply systems

Specifications

The RLF5018T-3R9M1R5 features an inductance of 3.9μH. It has a low DC resistance, which helps to maximize efficiency. The saturation current rating is designed to be high which specifies the amount of DC current the inductor can handle before its inductance drops substantially. Its dimensions are 5.0 x 5.0 x 1.8 mm. Its operating temperature typically falls between -40°C and +85°C.

TDK's RLF series of inductors are widely used in power supply circuits, particularly in mobile and portable devices due to their balance of high performance and compact size. The RLF5018T-3R9M1R5 offers a reliable solution where space constraints and efficient power management are essential considerations.