The **LD1-5R6-R** is a high-performance power inductor manufactured by **Eaton (formerly Cooper Bussmann)**. It belongs to the **LD series** of metal composite inductors, which are designed for high-current power applications. --- ### ## Technical Specifications The following table summarizes the key electrical and physical characteristics of the LD1-5R6-R: | Parameter | Specification | | :--- | :--- | | **Inductance** | 5.6 µH | | **Tolerance** | ±20% | | **Current Rating (Irms)** | ~2.5 A (typical) | | **Saturation Current (Isat)** | ~3.0 A (typical) | | **DC Resistance (DCR)** | ~0.065 Ω (Max) | | **Operating Temperature** | -40°C to +125°C | | **Package Type** | Surface Mount (SMD) | | **Size / Dimension** | 4.80mm x 4.80mm x 1.20mm (approx) | --- ### ## Key Features The LD series utilizes specific material science to achieve high efficiency in small footprints: 1. **Metal Composite Construction:** This design provides a "soft" saturation characteristic, meaning the inductance does not drop abruptly when the current increases. 2. **Low Profile:** The "1" in the part number often refers to the height class (approx. 1.0mm to 1.2mm), making it ideal for thin electronics like smartphones or tablets. 3. **Low EMI:** The shielded construction helps contain magnetic flux, reducing electromagnetic interference with surrounding components. 4. **Halogen Free & RoHS Compliant:** Meets modern environmental standards for electronics manufacturing. --- ### ## Applications The LD1-5R6-R is typically found in power management circuits where space is limited but current demands are high: * **DC-DC Converters:** Used in buck, boost, and SEPIC topologies. * **Mobile Devices:** Powering CPUs and GPUs in handheld electronics. * **Voltage Regulator Modules (VRM):** Distributing power on motherboards. * **LED Drivers:** Providing stable current for lighting systems. --- ### ## Decoding the Part Number The part number follows a standard Eaton nomenclature: ```text LD 1 - 5R6 - R | | | | | | | └── RoHS Compliant | | └────── Inductance Value (5.6 µH) | └─────────── Size/Height Code └─────────────── Series Name (Low Profile Inductor) ```