The Coilcraft JA4249-CLD is a high-performance RF inductor designed for a variety of wireless communication and signal processing applications. Coilcraft is a reputable manufacturer known for its high-quality inductors and other magnetic components. The JA4249-CLD is characterized by its small size, high Q-factor, and tight tolerance, making it suitable for demanding applications where precise inductance values are required.

Applications:

• RF filters
• Impedance matching networks
• Wireless communication circuits (e.g., Bluetooth, Wi-Fi)
• RF amplifiers
• Oscillators
• Low Noise Amplifiers (LNAs)

Features:

• High Q-factor: Provides low losses and efficient energy storage.
• Tight tolerance: Ensures consistent performance in critical circuits.
• Small size: Allows for integration into compact devices.
• Surface-mount design: Facilitates automated assembly.
• RoHS compliant: Meets environmental regulations.
• Wide inductance range options: Available in various inductance values to suit different applications.

Benefits:

• Improved circuit performance: High Q-factor minimizes signal loss and improves efficiency.
• Precise inductance value: Tight tolerance ensures accurate circuit tuning and performance.
• Reduced size and weight: Small size allows for miniaturization of electronic devices.
• Easy assembly: Surface-mount design simplifies manufacturing.
• Environmentally friendly: RoHS compliance ensures compliance with environmental regulations.

Additional Details:

The JA4249-CLD inductor is typically constructed using a ceramic core and a tightly wound coil. The specific inductance value, Q-factor, and self-resonant frequency (SRF) are dependent on the specific part number within the JA4249 series. The operating temperature range is typically from -40°C to +85°C. The SRF is an important parameter to consider, as the inductor's performance degrades significantly above this frequency. The inductor is designed for reflow soldering and should be handled according to standard surface-mount assembly practices. Refer to the Coilcraft datasheet for detailed specifications, including inductance value, Q-factor, SRF, DC resistance, and current rating.