The **5MT1.6-R** is a specific type of electronic component, primarily classified as a **subminiature glass tube fuse**. It is designed to protect electronic circuits from overcurrent conditions by breaking the circuit when the current exceeds a specific threshold. ### 1. Key Technical Specifications Below are the primary parameters for the 5MT1.6-R fuse: | Parameter | Specification | |:---|:---| | **Current Rating** | 1.6 Amperes (1.6A) | | **Voltage Rating** | 250V AC | | **Fuse Type** | Glass Tube (Cartridge) | | **Response Characteristic** | Medium Time-Delay (Slow Blow) | | **Size / Dimension** | 5mm x 20mm | | **Termination Style** | Axial Leaded (Pigtail) | | **Material** | Glass Body / Nickel Plated Brass Caps | --- ### 2. Functional Characteristics The "5MT" series possesses specific functional behaviors that distinguish it from standard fast-acting fuses: * **Medium Time-Delay (Slow Blow):** Unlike fast-acting fuses that blow instantly upon reaching the current limit, this fuse can withstand temporary "inrush" currents (spikes) common during device startup. * **Axial Leads:** The "-R" suffix often denotes "RoHS compliance," but in the physical assembly of this specific part number, it typically includes **pigtail leads** (wire leads soldered to the end caps). This allows the fuse to be soldered directly onto a Printed Circuit Board (PCB) without a fuse holder. * **Breaking Capacity:** It is designed to safely interrupt the circuit under fault conditions up to its rated breaking capacity (usually 35A at 250VAC or 10,000A at 125VAC). ### 3. Common Applications The 5MT1.6-R is frequently found in the following electronic environments: 1. **Power Supplies:** Protecting the primary side of AC/DC converters. 2. **Consumer Electronics:** Used in televisions, audio equipment, and chargers. 3. **Industrial Controllers:** Protecting sensitive circuitry from surges in motors or solenoids. 4. **LED Lighting:** Ensuring safety in high-voltage LED driver circuits. --- ### 4. Part Number Breakdown Understanding the nomenclature helps in identifying equivalent parts: * **5MT:** The series designation (Medium Time-Lag, 5x20mm). * **1.6:** The rated current (1.6 Amps). * **-R:** Indicates RoHS (Restriction of Hazardous Substances) compliance and often denotes the packaging/lead configuration.