The CMM21T-201M-N is a multilayer chip inductor manufactured by Chilisin. It's designed for use in a variety of high-frequency applications requiring small size and good performance.

Applications:

• RF circuits
• Wireless communication devices (e.g., mobile phones, Bluetooth modules)
• Matching networks
• Filtering circuits
• Impedance matching

Features:

• Multilayer construction: Provides high self-resonant frequency (SRF) and good Q factor.
• Small size: Suitable for compact electronic devices.
• High current handling capability: Can withstand relatively high currents for its size.
• Excellent solderability: Ensures reliable connection to the circuit board.
• RoHS compliant: Environmentally friendly.

Benefits:

• Improved signal integrity: Minimizes signal loss and distortion in RF circuits.
• Enhanced wireless performance: Optimizes signal transmission and reception in wireless devices.
• Reduced board space: Compact size allows for denser circuit layouts.
• Increased system reliability: Robust construction ensures stable performance over time.
• Compliance with environmental regulations: Meets RoHS requirements for hazardous substances.

Additional Details:

The CMM21T-201M-N has an inductance value of 200nH (201 represents 20 x 10^1 nH), with a tolerance likely around ±20% (indicated by the 'M'). The 'N' may indicate a specific packaging or material characteristic. The physical size is typically a 0805 or similar small form factor (2.0mm x 1.25mm).

Important parameters to consider when selecting this inductor include the SRF, the Q factor at the operating frequency, the DC resistance (DCR), and the rated current. The SRF indicates the frequency at which the inductor's impedance becomes capacitive, limiting its useful frequency range. The Q factor is a measure of the inductor's efficiency, with higher values indicating lower losses. The DCR affects the inductor's ability to handle DC current without significant voltage drop.

When using this inductor in RF applications, it's crucial to minimize parasitic capacitance and inductance in the surrounding circuit to maintain its performance. Proper grounding and layout techniques are essential for achieving optimal results. Consult the Chilisin datasheet for detailed specifications and application recommendations.