The **3SBP 10-R** is a specific type of electronic component, primarily known as a **Subminiature Time-Delay Fuse**. It is part of the 3SBP series manufactured by companies like Bel Fuse Inc. These fuses are designed for circuit protection in compact electronic devices. --- ### 1. Key Technical Specifications The "10-R" suffix typically denotes the current rating and RoHS compliance. | Parameter | Specification | | :--- | :--- | | **Part Number** | 3SBP 10-R | | **Current Rating** | 10 Amperes | | **Voltage Rating (AC)** | 250V AC | | **Fuse Type** | Axial Lead / Subminiature | | **Response Characteristic** | Time-Delay (Slow Blow) | | **Material** | Ceramic/Glass body with Pigtail Leads | | **Termination Style** | Through-hole (Solderable leads) | | **Compliance** | RoHS 6 Compliant (-R suffix) | --- ### 2. Physical Design and Construction The 3SBP 10-R is a "Pigtail" or "Axial Lead" fuse. Unlike standard cartridge fuses that fit into a clip, this part is soldered directly onto a Printed Circuit Board (PCB). * **Subminiature Body:** Approximately 3.6mm x 10mm in size. * **Encapsulation:** Usually features a ceramic or glass tube body to withstand internal pressure during a high-current fault. * **Leads:** Tin-plated copper leads for easy soldering. --- ### 3. Functional Characteristics #### Time-Delay (Slow Blow) The "Slow Blow" characteristic means the fuse is designed to ignore short-term, high-current surges (such as "inrush current" when a device first turns on). It will only blow if the overcurrent persists for a specific duration, preventing "nuisance blowing." #### Breaking Capacity These fuses are rated to safely interrupt a specific amount of current (Interrupting Rating) without exploding or shattering, typically up to 100A or more depending on the specific voltage environment. --- ### 4. Common Applications Due to its small footprint and 10A capacity, the 3SBP 10-R is commonly found in: * **Power Supplies:** Protecting the input stage from sustained overcurrent. * **Consumer Electronics:** Chargers, LED drivers, and small appliances. * **Industrial Equipment:** Control boards where space is limited. * **Battery Chargers:** Protecting the charging circuit against short circuits. --- ### 5. Identification Code Breakdown | Segment | Meaning | | :--- | :--- | | **3SBP** | Series identifier (3.6x10mm Time-Lag) | | **10** | Current Rating (10 Amps) | | **-R** | RoHS Compliant (Lead-free) |