The **RL1011-101-R** is a specific electronic component categorized as a **Radial Leaded Power Inductor**. It is manufactured by Bourns Inc. and is designed for applications requiring high saturation current and durability. --- ### 1. Key Technical Specifications The part number follows a specific nomenclature that defines its electrical characteristics: | Property | Value / Detail | | :--- | :--- | | **Inductance** | 100 µH (Microhenries) | | **Tolerance** | ±10% | | **Maximum DC Current (Ims)** | 1.1 Amperes | | **Maximum DC Resistance (DCR)** | 0.230 Ohms | | **Core Material** | Ferrite | | **Mounting Type** | Through-Hole (Radial) | | **Operating Temperature** | -40°C to +125°C | --- ### 2. Physical Construction The "RL1011" series refers to the physical dimensions and housing style of the inductor. * **Form Factor:** It is a radial-leaded component, meaning the two wire leads exit from the bottom of the part, intended for insertion into holes on a Printed Circuit Board (PCB). * **Encapsulation:** The inductor is typically encased in a **shrink-wrap sleeve** (polyolefin) which provides mechanical protection and insulation. * **Core Type:** It uses a non-shielded drum core construction, which allows for high saturation levels but may emit more electromagnetic interference (EMI) than shielded variants. --- ### 3. Common Applications Due to its current handling capabilities and inductance value, the RL1011-101-R is commonly found in: * **Power Supplies:** Used for ripple filtering in DC-DC converters and switching power supplies. * **DC/DC Conversion:** Acts as an energy storage element in buck or boost converters. * **EMI Filtering:** Used in line filters to suppress high-frequency noise in electronic circuits. * **General Purpose:** Found in consumer electronics, industrial controls, and communication equipment. --- ### 4. Part Number Breakdown * **RL1011:** The series identifier (defines the physical size: approx. 10mm diameter x 11mm height). * **101:** The inductance code. The first two digits (10) are the significant figures, and the third (1) is the multiplier (10^1). Thus, $10 \times 10 = 100 \mu H$. * **R:** Indicates compliance with **RoHS** (Restriction of Hazardous Substances) standards.