The part number **1006-R** most commonly refers to a specific series of high-performance **surface-mount power inductors** manufactured by companies like **Coilcraft** or generic electronic component suppliers. Below is a detailed breakdown of the technical specifications, characteristics, and applications for this component. --- ### 1. General Specifications The "1006" designation typically refers to the physical dimensions of the component, while the "R" often signifies compliance with RoHS standards or a specific tolerance/series indicator. | Feature | Specification (Typical) | | :--- | :--- | | **Component Type** | Fixed Inductor (SMD) | | **Mounting Type** | Surface Mount Device (SMD/SMT) | | **Inductance Range** | 1.0 µH to 1000 µH (varies by sub-model) | | **Current Rating** | High Current (up to several Amperes) | | **Material** | Ferrite Core with Copper Winding | | **Operating Temp** | -40°C to +125°C | --- ### 2. Key Technical Characteristics When working with the 1006-R series, engineers focus on these three critical parameters: * **DCR (DC Resistance):** This measures the resistance of the wire used in the inductor. The 1006-R is designed to have a very low DCR to minimize power loss and heat generation. * **Saturation Current ($I_{sat}$):** This is the current level at which the inductance drops by a specific percentage (usually 10-30%). The 1006-R series is known for a "soft" saturation characteristic. * **Self-Resonant Frequency (SRF):** This defines the frequency at which the component stops acting like an inductor and starts acting like a capacitor. --- ### 3. Physical Dimensions The "1006" code in the SMD world can be confusing. It usually refers to the size in millimeters (approximately 10mm x 6mm footprint). | Dimension | Measurement (approx.) | | :--- | :--- | | **Length** | 10.0 mm | | **Width** | 6.0 mm | | **Height** | 3.0 mm - 5.0 mm | --- ### 4. Common Applications These inductors are primarily used for power management and noise filtering in electronic circuits. 1. **DC-DC Converters:** Used as energy storage elements in buck, boost, and buck-boost regulators. 2. **Power Supplies:** Found in laptop adapters and industrial power units for smoothing output voltage. 3. **Noise Filtering:** Used in EMI/RFI suppression to prevent high-frequency noise from interfering with sensitive components. 4. **LED Drivers:** Providing steady current to high-brightness LED arrays. --- ### 5. Identification Example If you see a marking like **1006-101R**: * **1006:** Series size. * **101:** Inductance value ($10 \times 10^1 = 100$ µH). * **R:** RoHS Compliant / Decimal point indicator (depending on manufacturer context).