The **ELJNDR10JF** is a specific electronic component manufactured by Panasonic. It belongs to the **fixed inductor** category, specifically designed for high-frequency surface-mount (SMD) applications. --- ## 1. Technical Specifications The following table outlines the primary electrical and physical characteristics of the ELJNDR10JF: | Parameter | Specification | | :--- | :--- | | **Component Type** | Fixed Inductor (Wire-wound) | | **Inductance** | 0.10 µH (100 nH) | | **Tolerance** | ±5% (J Tolerance) | | **Case Code** | 0805 (Metric 2012) | | **DC Resistance (DCR)** | 0.68 Ω (Max) | | **Rated Current** | 300 mA | | **Self-Resonant Frequency (SRF)** | 650 MHz | | **Quality Factor (Q)** | 25 (Min at 25.2 MHz) | --- ## 2. Key Features * **Wire-wound Construction:** Unlike multilayer inductors, this part uses a wire-wound core which provides a higher **Q factor** (quality factor) and better stability at high frequencies. * **Miniature Footprint:** The 0805 package size (2.0mm x 1.25mm) allows for high-density mounting on printed circuit boards (PCBs). * **Heat Resistance:** Designed to withstand the thermal stresses of flow and reflow soldering processes. * **High Resonance:** The high SRF makes it suitable for RF (Radio Frequency) circuits. --- ## 3. Common Applications Due to its inductance value and high-frequency performance, the ELJNDR10JF is typically used in: 1. **RF Impedance Matching:** Used in mobile phones and wireless communication modules to match the antenna impedance. 2. **Filter Circuits:** Employed in Low Pass Filters (LPF) or Band Pass Filters (BPF) to suppress noise. 3. **High-Frequency Oscillators:** Helps in stabilizing frequency in signal generation circuits. 4. **Tuning Circuits:** Used in FM/AM radio receivers and TV tuners. --- ## 4. Part Number Breakdown Understanding the Panasonic naming convention helps in identifying similar parts: * **ELJ**: Panasonic Inductor Series prefix. * **ND**: High-frequency wire-wound type. * **R10**: Inductance value (R represents the decimal; R10 = 0.10 µH). * **J**: Tolerance code (J = ±5%). * **F**: RoHS compliance/Packaging indicator.