The **RJS600-R** is a high-performance, radial-leaded subminiature fuse belonging to the **Bel Fuse RJS Series**. These fuses are specifically designed for applications requiring high voltage ratings and compact footprints, often used as an alternative to traditional glass tube fuses. --- ## 1. Key Technical Specifications The "R" suffix in the part number denotes **RoHS compliance**. Below are the primary electronic characteristics for the RJS 600-R: | Feature | Specification | | :--- | :--- | | **Rated Current** | 600 mA | | **Voltage Rating (AC)** | 600 VAC | | **Voltage Rating (DC)** | 250 VDC | | **Interrupting Rating** | 60A @ 600V AC / 10kA @ 125V AC | | **Fuse Type** | Fast Acting / Quick Acting | | **Mounting Type** | Through-Hole (Radial Leads) | | **Material** | Glass Tube with Brass Caps (Nickel Plated) | --- ## 2. Construction and Form Factor The RJS series is known for its **radial leaded design**, which allows the fuse to stand upright on a Printed Circuit Board (PCB). This saves significant "real estate" compared to axial fuses or fuse clips. * **Body Dimensions:** Approximately 4.7mm x 19mm. * **Lead Spacing:** Standard 5.08mm (0.2 inch) pitch. * **Protection:** The glass body allows for visual inspection of the fuse element to confirm if it has blown. --- ## 3. Typical Applications Because of its high voltage AC rating (600V), the RJS600-R is commonly found in industrial and telecommunications equipment: 1. **Telecommunications:** Protection for line cards and networking gear (meets various ITU and Telcordia standards). 2. **Power Supplies:** Secondary side protection in high-voltage industrial power units. 3. **Ballasts:** Electronic lighting ballasts. 4. **Adapters:** Protection for AC/DC wall adapters where space is limited. --- ## 4. Operating Standards The RJS series is engineered to meet global safety and environmental requirements: * **Safety Agency Approvals:** UL Recognized (Component), CSA Certified, and VDE approved. * **Environmental:** RoHS 2 Compliant (Lead-Free). * **Thermal:** Designed to operate in a wide temperature range, typically -55°C to +125°C. --- ## 5. Circuit Symbol and Implementation In a schematic, the RJS600-R is represented by the standard fuse symbol. It should be placed as close to the AC input or power source as possible to provide maximum protection for downstream components. ```text F1 (600mA) ---[ ~~~~S~~~~ ]--- RJS600-R ```