The **5MTP200-R** is a specific model of a subminiature, radial-leaded, time-delay fuse. It is commonly used in electronic circuits to provide overcurrent protection, particularly in power supplies and consumer electronics. --- ## 1. Technical Specifications The following table highlights the core technical characteristics of the 5MTP200-R: | Parameter | Specification | | :--- | :--- | | **Manufacturer** | Bel Fuse Inc. | | **Current Rating** | 200 mA | | **Voltage Rating (AC)** | 250V | | **Response Characteristic** | Time-Delay (Slow Blow) | | **Mounting Type** | Through-Hole (Radial) | | **Termination Style** | Radial Lead | | **Body Material** | Thermoplastic / Glass / Ceramic (Series dependent) | | **Approvals** | UL, CSA, VDE, RoHS Compliant | --- ## 2. Key Features The "5MTP" series is designed with specific operational goals: * **Slow Blow Functionality:** Unlike "Fast Acting" fuses, the 5MTP200-R is designed to withstand short-duration high-current surges (inrush current) without blowing. This is essential for devices like motors or power transformers that draw more current at startup. * **Space Efficient:** Its radial lead design allows it to occupy a smaller footprint on a Printed Circuit Board (PCB) compared to traditional 5x20mm glass cartridge fuses. * **RoHS Compliant:** The "-R" suffix indicates that the part is lead-free and meets the Restriction of Hazardous Substances (RoHS) requirements. --- ## 3. Circuit Symbol and Implementation In a circuit diagram, the fuse is represented by a specific symbol and is usually placed at the input stage (Power Inlet). ### Typical Placement ```text [AC INPUT] ---- [5MTP200-R FUSE] ---- [TRANSFORMER/SMPS] ---- [LOAD] ``` ### Why use 200mA? This low current rating is typically used in: * Small low-power sensors. * Control circuits within larger appliances. * Secondary protection for sensitive ICs. --- ## 4. Part Number Breakdown Understanding the nomenclature helps in sourcing or finding replacements: | Code | Meaning | | :--- | :--- | | **5MTP** | Series Identifier (Micro Time-Lag Fuse) | | **200** | Current Rating (200 Milliamperes) | | **-R** | RoHS Compliant |