The **CSAB0718-R82M** is a high-current, surface-mount (SMD) power inductor. It is commonly used in DC-DC converters and voltage regulator modules (VRMs) due to its high efficiency and compact size. ### 1. Technical Specifications The part number follows a specific nomenclature that defines its physical and electrical characteristics: | Parameter | Value / Description | | :--- | :--- | | **Inductance** | 0.82 µH (Microhenries) | | **Tolerance** | ±20% (indicated by 'M') | | **Size Code** | 0718 (approx. 7.0 x 6.6 x 1.8 mm) | | **Core Material** | Carbonyl Powder / Alloy (Metal Composite) | | **DCR (DC Resistance)** | Very Low (typically < 10 mΩ) | | **Saturation Current** | High (typically 15A - 25A depending on temperature) | --- ### 2. Key Features * **Magnetic Shielding:** The molded metal powder construction provides inherent shielding, reducing electromagnetic interference (EMI) with surrounding components. * **Soft Saturation:** Unlike ferrite inductors, these composite inductors do not have a sharp drop-off in inductance when the current exceeds the rated limit. * **Low Profile:** The "18" in the suffix usually denotes a height of 1.8mm, making it ideal for thin electronic devices like laptops or tablets. * **High Thermal Stability:** Designed to operate in high-temperature environments without significant loss of performance. --- ### 3. Application Use Cases Inductors like the CSAB0718-R82M are primarily used for energy storage and filtering in power management circuits: 1. **Buck Converters:** Stepping down voltage for CPUs, GPUs, and FPGAs. 2. **Battery Powered Devices:** Used in smartphones and tablets where space is premium. 3. **POL (Point of Load) Converters:** Located close to the high-speed chips to provide stable power. --- ### 4. Typical Footprint Layout While the exact dimensions should be verified via the manufacturer datasheet (e.g., Cyntec or Chilisin), the general pad layout for a 0718 series is as follows: ```markdown [ Pad A ] <--- 7.0mm ---> [ Pad B ] ___________________________________ | | | (Top View) | ~6.6mm |___________________________________| ```