The **CV201210-R82K** is a surface-mount chip inductor manufactured by Bourns. It belongs to the CV201210 series, which are multi-layer chip inductors commonly used in high-density circuits. ### 1. Part Number Breakdown To understand the component, we can deconstruct the part number as follows: | Code Segment | Meaning | Description | | :--- | :--- | :--- | | **CV** | Series | Multi-layer Chip Inductor | | **2012** | Package Size | Metric 2012 (EIA 0805) | | **10** | Thickness | Nominal thickness (1.0 mm) | | **R82** | Inductance | 0.82 µH (Microhenries) | | **K** | Tolerance | ±10% | --- ### 2. Technical Specifications The following table summarizes the key electrical and physical characteristics of this part: | Parameter | Value | | :--- | :--- | | **Inductance** | 0.82 µH | | **Tolerance** | ±10% | | **Quality Factor (Q)** | 45 (Minimum at 25 MHz) | | **Self-Resonant Frequency (SRF)** | 115 MHz (Minimum) | | **DC Resistance (DCR)** | 0.55 Ohms (Maximum) | | **Rated Current (I-rms)** | 150 mA | | **Operating Temperature** | -55°C to +125°C | --- ### 3. Key Features and Applications #### Features * **Magnetic Shielding:** The multi-layer construction provides a closed magnetic path, minimizing crosstalk and electromagnetic interference (EMI). * **Compact Size:** The 0805 footprint (2.0mm x 1.25mm) is ideal for space-constrained designs. * **Reliability:** No organic adhesives are used, making it highly reliable for soldering and thermal cycling. #### Typical Applications * **Filtering:** Used in power supply lines to suppress high-frequency noise. * **RF Matching:** Utilized in mobile phones and wireless communication modules. * **Consumer Electronics:** Found in tablets, laptops, and portable media players where high-density PCB mounting is required. ---