The **CDEP85NP-R80MC-50** is a high-power, surface-mount (SMD) inductor manufactured by **Sumida**. It belongs to the CDEP85 series, which is specifically designed for high-current applications such as DC/DC converters and power supply modules. --- ### 1. Key Technical Specifications | Parameter | Value / Description | | :--- | :--- | | **Inductance** | 0.8 µH | | **Tolerance** | ±20% (indicated by 'M') | | **DC Resistance (DCR)** | ~3.8 mΩ (Max) | | **Saturation Current (Isat)** | ~18.0 A (at 20°C) | | **Temperature Rise Current (Irms)** | ~13.0 A | | **Operating Temperature** | -40°C to +125°C | | **Package / Case** | SMD (approx. 8.8 x 8.5 x 6.0 mm) | --- ### 2. Part Number Breakdown The alphanumeric code provides specific details about the component's construction: * **CDEP85**: The series name (indicating dimensions and core type). * **NP**: Indicates "No Polarity" or standard lead-free termination. * **R80**: Represents the inductance value. `R` acts as a decimal point, so `R80` = 0.80 µH. * **M**: Indicates the tolerance code (M = ±20%). * **C**: Internal manufacturing/designator code. * **50**: Packaging or specific variation suffix. --- ### 3. Core Features and Applications #### Features * **High Saturation Current:** Uses a manganese-zinc (Mn-Zn) ferrite core, which allows the inductor to handle high peak currents without the magnetic field collapsing. * **Magnetic Shielding:** The design is shielded, which minimizes Electromagnetic Interference (EMI) with surrounding components. * **Low DCR:** The low direct current resistance ensures minimal power loss through heat, increasing the overall efficiency of the power circuit. #### Common Applications 1. **Voltage Regulator Modules (VRM):** Used in CPUs and GPUs to manage high-current power delivery. 2. **DC/DC Converters:** Found in automotive electronics and industrial power supplies. 3. **Battery Powered Devices:** High efficiency makes it suitable for portable equipment requiring stable voltage rails. --- ### 4. Footprint and Mounting The device features a rugged SMD footprint with flat-bottom terminations. This ensures mechanical stability during high-vibration scenarios and allows for automated pick-and-place assembly. ```yaml Dimensions: Length: 8.8 mm (Max) Width: 8.5 mm (Max) Height: 6.0 mm (Max) ``` ---