The VLN4012T-101MR21 is a wire-wound chip inductor from TDK designed for high-frequency applications. It is characterized by its small size and shielded construction, making it suitable for use in densely packed electronic circuits where electromagnetic interference (EMI) needs to be minimized.

Applications:

• High-frequency power supplies
• RF circuits
• Wireless communication devices
• DC-DC converters
• Noise filtering

Features:

• Shielded construction for reduced EMI
• Compact size: 4.0mm x 4.0mm x 1.2mm
• High self-resonant frequency
• Excellent Q factor
• RoHS compliant

Benefits:

• Reduced electromagnetic interference, improving overall system performance
• Space-saving design allows for higher component density
• Stable performance at high frequencies
• Efficient signal filtering and impedance matching
• Compliant with environmental regulations

Additional Details:

The VLN4012T-101MR21 inductor has an inductance of 100µH (100 microhenries) with a tolerance of ±20%. It features a rated current of 0.21A and a typical DC resistance (DCR) of 4.1 ohms. The shielded construction minimizes electromagnetic interference (EMI), making it suitable for sensitive electronic applications. The operating temperature range is typically -40°C to +125°C. This inductor is commonly used in high-frequency power supplies for filtering and energy storage. In RF circuits, it is used for impedance matching and signal filtering. The high self-resonant frequency (SRF) allows for stable performance at high frequencies.

The inductor is constructed using a ferrite core, which offers high permeability and low core loss. The terminals are solder-plated for easy soldering onto PCBs. The compact size of the VLN4012T-101MR21 makes it suitable for use in densely populated circuit boards where space is at a premium. This component is often used in wireless communication devices such as smartphones, tablets, and wireless modules for filtering and impedance matching. Its high Q factor ensures efficient signal transmission with minimal loss.

The VLN4012T-101MR21 is a reliable and efficient component for various high-frequency applications, providing excellent performance and noise reduction in a compact package.