The **LHCC10040-R36M-R7** is a high-current, shielded power inductor typically used in DC-DC converter applications. It belongs to the category of "Molded Power Inductors," known for their compact size and ability to handle high saturation currents. --- ### 1. Part Number Breakdown Understanding the nomenclature helps identify the physical and electrical characteristics: | Code Segment | Description | Specific Value | |:---|:---|:---| | **LHCC** | Series Series | High Current Composite/Molded Type | | **10040** | Physical Size | Approx. 10.0mm x 10.0mm x 4.0mm | | **R36** | Inductance Value | 0.36 µH (Microhenries) | | **M** | Tolerance | ±20% | | **R7** | Packaging | Typically Tape & Reel (7-inch or specific quantity) | --- ### 2. Key Technical Specifications While exact values can vary slightly by manufacturer (often generic or private label brands like Cyntec, Sunlord, or Chilisin clones), the standard specs for a 10040-R36M are: * **Inductance:** 0.36 µH * **DC Resistance (DCR):** Extremely low (typically < 1.5 mΩ) to minimize power loss. * **Saturation Current (Isat):** Very high, usually ranging from **40A to 60A** (The current at which inductance drops by 20-30%). * **Heat Rating Current (Irms):** Usually **25A to 35A** (The current causing a 40°C temperature rise). * **Operating Temperature:** -40°C to +125°C (including self-heating). --- ### 3. Construction and Features * **Molded Structure:** The coil is embedded in a metal magnetic powder. This eliminates "acoustic noise" (buzzing) and provides excellent magnetic shielding. * **Magnetic Shielding:** Minimizes Electromagnetic Interference (EMI) with surrounding components on the PCB. * **High Efficiency:** Due to the low DCR, these parts are ideal for high-frequency switching regulators where efficiency is critical. --- ### 4. Typical Applications These components are standard in power management stages for high-performance electronics: 1. **Motherboards/GPUs:** Voltage Regulator Modules (VRM). 2. **Server Power:** High-density DC-DC converters. 3. **Laptops:** CPU/GPU core power supplies. 4. **Telecom:** Base station power modules. --- ### 5. Footprint Example (SMD) The device is a Surface Mount Device (SMD). Below is a representation of the typical 10040 footprint: ```markdown Dimensions (Nominal): Length: 11.5mm (including terminals) Width: 10.0mm Height: 4.0mm ```