The **3SBP1.6-R** is a specific type of **surface-mount fuse** (SMD Fuse) manufactured by **Bel Fuse Inc.** It belongs to the 3SBP series, which is characterized by its square ceramic body and slow-blow (time-delay) characteristics. --- ### 1. Technical Specifications Below are the primary electronic characteristics for the 3SBP1.6-R: | Parameter | Value / Detail | | :--- | :--- | | **Current Rating** | 1.6 Amperes (1.6A) | | **Voltage Rating (AC)** | 125 V | | **Voltage Rating (DC)** | 125 V | | **Fuse Type** | Slow Blow / Time Delay | | **Body Material** | Ceramic | | **Package Size** | 2410 (6.10mm x 2.69mm) | | **Interrupt Rating** | 50A @ 125V AC/DC | | **Typical Cold Resistance** | ~0.057 Ohms | --- ### 2. Breakdown of the Part Number The alphanumeric code provides specific details about the component's construction and shipping: * **3SBP**: The series name (Square Ceramic Body, Slow Blow). * **1.6**: The rated current capacity (1.6 Amps). * **-R**: Indicates compliance with **RoHS** (Restriction of Hazardous Substances) standards (Lead-free). --- ### 3. Key Electronic Features * **Slow-Blow Characteristic:** Unlike "fast-acting" fuses, the 3SBP1.6-R is designed to withstand temporary current surges (inrush current) without blowing. This makes it ideal for circuits with motors or capacitors that draw a spike of power upon startup. * **High Interrupting Rating:** It can safely clear a short circuit of up to 50 Amps at its rated voltage without the fuse body shattering. * **Compact Footprint:** The 2410 SMD package allows it to be used in space-constrained PCB designs while providing higher voltage protection than standard 0805 or 1206 fuses. --- ### 4. Common Applications Due to its 1.6A rating and time-delay nature, this part is commonly found in: 1. **Power Supplies:** Protecting the primary or secondary side of AC/DC converters. 2. **LCD Monitors/TVs:** Specifically for backlight inverters. 3. **Industrial Equipment:** Small motor controllers and sensors. 4. **Telecom:** Line cards and networking equipment.