## 5MTP5-R: Technical Overview The **5MTP5-R** is a specific model of a **Medium Time-Lag Radial Lead Micro Fuse**. It is widely used in power supplies, chargers, and consumer electronics to provide overcurrent protection. ### 1. Key Technical Specifications Below are the primary electrical and physical characteristics for the 5MTP5-R: | Parameter | Specification | | :--- | :--- | | **Component Type** | Radial Lead Micro Fuse (Power Type) | | **Current Rating** | 5 Amperes (5A) | | **Voltage Rating** | 250V AC | | **Interrupting Rating** | 50A @ 250V AC | | **Response Characteristic** | Medium Time-Lag (Slow Blow) | | **Body Material** | Thermoplastic (UL 94 V-0 Flammability) | | **Operating Temperature** | -55°C to +125°C | | **Lead Material** | Tin-plated Copper | --- ### 2. Physical Dimensions & Form Factor The 5MTP series is designed for space-saving on Printed Circuit Boards (PCBs). * **Shape:** Rectangular / Box type. * **Mounting Type:** Through-hole (Radial leads). * **Dimensions:** Typically ~8.5mm x 8.5mm x 4mm (height varies slightly by brand). * **Lead Spacing:** Standard 5.08mm pitch. --- ### 3. Functional Characteristics The "T" in the part number signifies **Time-Lag**. This is crucial for electronic parts for the following reasons: 1. **Inrush Current Handling:** It allows for a brief surge of electricity (common when turning on motors or power supplies) without blowing the fuse. 2. **Sustained Overcurrent Protection:** It will only "trip" or blow if the current exceeds 5A for a sustained period or if a major short circuit occurs. 3. **Safety Compliance:** The "-R" suffix usually denotes **RoHS Compliance**, meaning the part is lead-free and meets environmental safety standards. --- ### 4. Typical Applications The 5MTP5-R is commonly found in: * **Power Adapters:** Laptops, monitors, and printer power bricks. * **LED Drivers:** Lighting systems where initial surge is present. * **Battery Chargers:** Protecting against cell shorts or charging faults. * **Consumer Appliances:** Small kitchen gadgets and smart home devices.