### Product Overview: 5MTP 250-R The **5MTP 250-R** is a specific model of a **Miniature Cartridge Fuse** manufactured by **Bel Fuse Inc.** It belongs to the MTP series, which are medium-acting fuses designed for use in circuits where a balance between protection and transient tolerance is required. --- ### Key Technical Specifications The following table outlines the primary electrical and physical characteristics of the 5MTP 250-R: | Parameter | Specification | Details | | :--- | :--- | :--- | | **Current Rating** | 250mA (0.25A) | The maximum continuous current the fuse can carry. | | **Voltage Rating (AC)** | 250V | Maximum AC voltage the fuse can safely interrupt. | | **Fuse Type** | Glass Body | Allows for visual inspection of the internal element. | | **Response Time** | Medium Acting | Faster than "Slow-Blow" but slower than "Fast-Acting." | | **Form Factor** | 5x20 mm | Standard miniature cartridge size. | | **Termination Style** | Axial Leaded | The "R" in the suffix usually denotes radial/axial leaded or RoHS compliance. | | **Interrupting Rating** | 35A @ 250V AC | The maximum fault current the fuse can safely stop. | --- ### Internal Construction and Features 1. **Medium-Acting Characteristic:** Unlike fast-acting fuses that blow instantly upon a minor surge, or slow-blow fuses that wait for sustained overloads, the 5MTP series provides a "middle ground." This is ideal for devices that have small, momentary inrush currents but require quick protection against short circuits. 2. **Glass Tube Design:** The transparent body allows technicians to quickly identify if the fuse has blown without needing a multimeter for a continuity test. 3. **Lead Configuration:** The **"R"** suffix typically indicates that the fuse comes with **Pigtail Leads** (axial leads) attached to the end caps. This allows the fuse to be soldered directly onto a Printed Circuit Board (PCB) without a fuse holder. 4. **RoHS Compliant:** The part is manufactured to meet environmental standards, being lead-free and free of hazardous substances. --- ### Common Applications Because of its 250mA rating and medium-acting response, this part is commonly found in: * **Power Supplies:** Protecting the input stage of low-power adapters. * **Consumer Electronics:** Used in televisions, monitors, and audio equipment. * **Industrial Controls:** Protecting sensitive sensors or control loops that might experience slight electrical noise. * **Medical Equipment:** Providing reliable circuit protection in diagnostic tools.