Based on the part number **CB3JB33R0** (standardized format for the CB series), this electronic component is a **Power Resistor**. It is specifically a ceramic-encased, wirewound resistor designed for high-power applications where durability and heat dissipation are critical. --- ### 1. Key Technical Specifications | Feature | Specification | Description | | :--- | :--- | :--- | | **Series** | CB Series | Ceramic-encased wirewound power resistor. | | **Power Rating** | 3 Watts | The amount of power it can dissipate safely at 70°C. | | **Resistance Value** | 33 Ω (Ohms) | The electrical resistance of the component. | | **Tolerance** | ±5% (J) | The allowable variance from the nominal resistance. | | **Construction** | Wirewound | Resistance wire wound around a ceramic core. | | **Housing** | Ceramic (Stone) | Rectangular ceramic case filled with inorganic cement. | --- ### 2. Physical Characteristics * **Dimensions:** Typically measures approximately 13mm to 15mm in length and 5mm to 6mm in height/width (standard for 3W ratings). * **Mounting Type:** Through-hole (Axial leads). * **Inorganic Construction:** The ceramic housing and cement filling make the part **flameproof** and resistant to moisture and solvents. --- ### 3. Common Applications Due to its robust construction, the CB3 series is used in circuits that handle significant current: 1. **Power Supplies:** Used as a bleeder resistor or for current limiting. 2. **Motor Controls:** Managing start-up surges or braking. 3. **Industrial Equipment:** General-purpose power dissipation in harsh environments. 4. **Audio Amplifiers:** Output stage protection or load balancing. --- ### 4. Part Number Breakdown The part number follows a specific nomenclature (Example: **CB3JB33R0**): * **CB:** Series Type (Ceramic Housed). * **3:** Power Rating (3 Watts). * **J:** Tolerance Code (J = ±5%). * **B:** Packaging (B = Bulk). * **33R0:** Resistance value (33.0 Ohms). ---