The part number **47LAC-101YR-R** refers to a high-performance **Radial Lead Inductor** (specifically a power inductor) manufactured by **Taiyo Yuden**. It is part of the LAC series, designed for noise filtering and power supply decoupling applications. --- ### 1. Technical Specifications | Parameter | Specification | Details | | :--- | :--- | :--- | | **Inductance** | 100 µH | Rated at 1kHz | | **Tolerance** | ±10% | (K) Tolerance level | | **DC Resistance (DCR)** | 0.43 Ω (Max) | Resistance to direct current | | **Rated Current** | 700 mA | Maximum continuous current | | **Form Factor** | Radial Lead | Through-hole mounting | | **Core Material** | Ferrite | High permeability material | | **Operating Temp** | -25°C to +105°C | Includes self-heating | --- ### 2. Part Number Breakdown Understanding the nomenclature helps in identifying its characteristics: 1. **47**: Series code/Product identifier. 2. **LAC**: Product Category (Leaded Inductor for Power Circuits). 3. **101**: Inductance value. The first two digits (10) are significant figures, and the third (1) is the multiplier ($10 \times 10^1 = 100$ µH). 4. **Y**: Tolerance indicator (standard for this series). 5. **R**: Packaging/Taping style (Radial Taping). --- ### 3. Key Features and Applications #### Features * **Compact Size:** High power density in a small radial footprint. * **Reliability:** The ferrite core provides stable inductance across a wide frequency range. * **Ease of Assembly:** Designed for automatic insertion into PCBs (Printed Circuit Boards). #### Applications * **Power Supplies:** Used as an output filter in AC-DC or DC-DC converters. * **Consumer Electronics:** Found in TVs, monitors, and audio equipment for noise suppression. * **Industrial Equipment:** General-purpose filtering in control systems. --- ### 4. Circuit Diagram Representation In a schematic, this component is represented as a standard inductor with two leads: ```text L1 (100uH) ----( ( ( ) )---- | | IN OUT ``` ---