The **5VTP5-R** is a specific model of a **Time-Delay Subminiature Fuse** manufactured by Bel Fuse Inc. It belongs to the **5VTP Series**, which is designed for applications where space is limited and high-breaking capacity is required. --- ### 1. Key Technical Specifications Below is a breakdown of the electrical and physical characteristics for the 5VTP5-R: | Feature | Specification | | :--- | :--- | | **Current Rating** | 5 Amperes (5A) | | **Voltage Rating (AC)** | 250V AC | | **Fuse Type** | Time-Delay / Slow Blow (T) | | **Mounting Type** | Through-Hole (Radial Leaded) | | **Breaking Capacity** | 100A @ 250V AC | | **Termination Style** | Radial Lead (PCB mountable) | | **Dimensions** | Approx. 8.5mm x 8.5mm x 4mm | | **RoHS Compliant** | Yes (Indicated by the "-R" suffix) | --- ### 2. Operational Characteristics #### Time-Delay Functionality As a **Slow-Blow (Time-Delay)** fuse, the 5VTP5-R is designed to withstand temporary current surges (inrush currents) that occur when a device first starts up. It will not blow instantly if the current briefly exceeds 5A, but it will open the circuit if the overcurrent persists, protecting the electronics from long-term damage. #### Radial Design Unlike traditional cylindrical glass fuses, the 5VTP series uses a rectangular plastic body with two leads protruding from the bottom. This is ideal for high-density PCB layouts where vertical space is available but board surface area is restricted. --- ### 3. Suffix Breakdown: "-R" The **"-R"** at the end of the part number is critical in modern manufacturing: * **RoHS Compliance:** It signifies that the part is lead-free and complies with the "Restriction of Hazardous Substances" directive. * **Environmental Safety:** It ensures the component is suitable for global distribution and environmentally conscious production lines. --- ### 4. Typical Applications The 5VTP5-R is commonly found in: * **Power Supplies:** Protecting the primary or secondary side of AC/DC adapters. * **Consumer Electronics:** Televisions, audio equipment, and chargers. * **Industrial Equipment:** Control boards and small motors where startup surges are common. * **LED Lighting:** Drivers that experience high initial capacitance charging.