The **C519-1-R** is a specific type of electronic component, specifically a **fast-acting glass tube fuse** manufactured by **Eaton (formerly Bussmann)**. It belongs to the C519 series, which is a popular 5mm x 15mm fuse standard. --- ### ## Technical Specifications The table below outlines the core electrical and physical characteristics of the C519-1-R: | Parameter | Specification | | :--- | :--- | | **Current Rating** | 1 Ampere (1A) | | **Voltage Rating (AC)** | 250 Volts | | **Fuse Type** | Fast-Acting (Fast Blow) | | **Body Material** | Glass Tube | | **Dimensions** | 5mm (Diameter) x 15mm (Length) | | **Termination Style** | Axial Leaded (Through-hole) | | **Resistance (Typical)** | 0.142 Ohms | | **Breaking Capacity** | 35A @ 250Vac / 10,000A @ 125Vac | --- ### ## Key Features & Construction 1. **Axial Leads:** The "-R" suffix often indicates RoHS compliance, but in this physical configuration, it features wire leads soldered to the end caps. This allows it to be soldered directly onto a Printed Circuit Board (PCB) rather than being placed in a fuse clip. 2. **Fast-Acting Characteristic:** This fuse is designed to open (blow) very quickly when an overcurrent condition occurs. It does not tolerate sustained surges, making it ideal for sensitive electronic circuits. 3. **Glass Body:** The transparent glass allows for easy visual inspection to determine if the internal filament has melted. --- ### ## Common Applications Because of its small footprint and 1A rating, the C519-1-R is commonly found in: * **Consumer Electronics:** Power supplies for TVs, monitors, and chargers. * **Industrial Equipment:** Control circuits and small motor protection. * **LED Drivers:** Protecting the driver circuitry from short circuits. --- ### ## Component Identification If you are looking at the part numbering system for this series, here is how it breaks down: * **C519:** The Series name (5 x 15mm glass). * **1:** The Amperage rating (1 Amp). * **-R:** Indicates RoHS compliance (lead-free).