The **10JM-1A0-R** is a specific part number belonging to a series of **Inductors**, specifically designed for surface-mount technology (SMT). It is commonly used in high-frequency applications, power management, and noise filtering. Below is a detailed breakdown of its specifications and characteristics. ### 1. General Specifications The part number follows a standard nomenclature used by manufacturers such as **Cooper Bussmann** (now part of Eaton). | Feature | Description | | :--- | :--- | | **Component Type** | Fixed Inductor | | **Inductance** | 10 $\mu$H (indicated by the "10") | | **Tolerance** | Generally ±10% or ±20% (varying by series) | | **Mounting Type** | Surface Mount (SMD) | | **RoHS Status** | Compliant (indicated by the "-R" suffix) | --- ### 2. Physical and Technical Attributes The **JM series** inductors are typically characterized by their compact size and reliability in demanding environments. * **Core Material:** Usually Ferrite. Ferrite cores provide high magnetic permeability while keeping eddy current losses low at high frequencies. * **Shielding:** Many parts in this series are **unshielded** or semi-shielded, designed for applications where magnetic coupling is not a critical concern, or where space is a priority. * **Termination:** High-quality solder pads (usually tin over nickel) to ensure strong mechanical bonds and low electrical resistance during reflow soldering. --- ### 3. Key Performance Parameters While specific values can fluctuate based on the exact production batch, the general performance characteristics include: 1. **DCR (DC Resistance):** Low DCR to minimize power loss and heat generation. 2. **Saturation Current ($I_{sat}$):** The current level at which the inductance drops by a specific percentage (usually 10% or 30%). 3. **RMS Current ($I_{rms}$):** The continuous current the inductor can handle without exceeding a specific temperature rise (usually 40°C). 4. **Operating Temperature:** Typically rated for **-40°C to +125°C**, making them suitable for industrial and some automotive environments. --- ### 4. Common Applications Due to its 10 $\mu$H value and SMD form factor, the 10JM-1A0-R is frequently found in: * **DC-DC Converters:** Used for energy storage and smoothing in buck/boost regulators. * **Filtering:** Acting as a low-pass filter to remove high-frequency noise from power supply lines. * **Telecommunications:** Used in base stations and networking hardware for signal integrity. * **Consumer Electronics:** Found in laptops, LED drivers, and portable power banks. --- ### 5. Part Number Decoding The suffix **-R** is the most critical for modern manufacturing, as it certifies that the component is **Lead-Free** and meets **RoHS** (Restriction of Hazardous Substances) standards. ---