The **VSAB0630-R47M** is a high-current, surface-mount (SMD) power inductor commonly used in DC-DC converters and voltage regulator modules. It belongs to a category of molded power inductors known for high efficiency and low electromagnetic interference (EMI). --- ### 1. Part Number Deciphering To understand the technical characteristics, we can break down the part number: | Segment | Meaning | Detail | | :--- | :--- | :--- | | **VSAB** | Series Name | High-current molded power inductor series. | | **0630** | Dimensions | Approx. 6.6mm x 6.4mm with a height of 3.0mm. | | **R47** | Inductance | **0.47 µH** (Microhenries). | | **M** | Tolerance | **±20%** tolerance. | --- ### 2. Key Technical Specifications While exact values can vary slightly by manufacturer (such as Viking Tech or similar equivalents), the standard specifications for a 0630 R47M inductor are: | Parameter | Typical Value | | :--- | :--- | | **Inductance** | 0.47 µH | | **DC Resistance (DCR)** | ~3.5 mΩ (Max) | | **Saturation Current (Isat)** | ~18.0 A to 25.0 A | | **Rated Current (Irms)** | ~13.0 A to 16.0 A | | **Operating Temperature** | -40°C to +125°C | --- ### 3. Core Features * **Molded Construction:** The coil is encapsulated in a metallic iron powder core. This design provides a "soft saturation" characteristic, meaning the inductance drops gradually rather than sharply when current increases. * **Shielded Design:** The molded body acts as a natural magnetic shield, significantly reducing EMI (Electro-Magnetic Interference) which is critical for dense PCB layouts. * **Low DCR:** The use of flat or thick copper wire minimizes DC resistance, reducing power loss through heat (Joule heating). --- ### 4. Common Applications This specific inductor is ideal for high-frequency switching power supplies: 1. **Motherboards & Graphics Cards:** Used in VRM (Voltage Regulator Module) circuits for CPUs and GPUs. 2. **Laptops/Tablets:** High-efficiency power management for portable devices. 3. **Telecom Equipment:** DC-DC converters for distributed power systems. 4. **LED Lighting:** Used in driver circuits to maintain steady current. --- ### 5. Footprint Code The `0630` package is a standard industry size: ```text Length: 6.6 mm (± 0.3) Width: 6.4 mm (± 0.3) Height: 3.0 mm (Max) ```