The **LC2-122-R** is a high-performance, surface-mount (SMT) power inductor typically used in DC-DC converters, voltage regulator modules (VRMs), and power supply applications. It is part of the **Octa-Path (LC2) Series** manufactured by Coiltronics (now part of Eaton/Bussmann). --- ### ## Technical Specifications The primary characteristics of the LC2-122-R are centered around its efficiency in high-frequency power conversion. | Parameter | Specification | | :--- | :--- | | **Inductance** | 1.2 µH | | **Tolerance** | ±20% | | **Current Rating (Irms)** | ~21.0 Amperes | | **Saturation Current (Isat)** | ~31.0 Amperes | | **DC Resistance (DCR)** | ~2.55 mΩ (Max) | | **Operating Temperature** | -40°C to +125°C | | **Package Type** | Surface Mount (SMD) | --- ### ## Key Features and Design The "LC2" series is engineered for high-density power environments. * **Materials:** It utilizes a high-frequency powder core material that minimizes core losses at high frequencies. * **Low DCR:** The very low Direct Current Resistance (2.55 mΩ) ensures minimal heat generation and high efficiency, which is critical for battery-powered or high-current devices. * **High Current Handling:** With a saturation current of 31A, this part can handle significant current spikes without the inductance dropping off sharply. * **Magnetically Shielded:** The construction reduces Electromagnetic Interference (EMI), allowing it to be placed close to sensitive components. --- ### ## Common Applications The LC2-122-R is commonly found in the following electronic circuits: 1. **Distributed Power Systems:** Used in point-of-load (POL) converters. 2. **Computing:** Voltage regulation for CPUs, GPUs, and high-end servers. 3. **Telecommunications:** Base station power modules and networking hardware. 4. **Energy Storage:** Battery management systems where high efficiency is required. --- ### ## Part Number Breakdown Understanding the nomenclature helps in identifying variants: `LC2 - 122 - R` * **LC2:** Series name (Octa-Path Low Profile Power Inductors). * **122:** Inductance code. The first two digits are significant figures, the third is the multiplier (12 x 10^2 nH = 1.2 µH). * **-R:** Indicates the part is RoHS compliant.