The part number **0J3-R2** typically refers to a specific component within the electronic hardware ecosystem, most commonly associated with **Littelfuse** (under the TE Connectivity/Raychem legacy) or specialized terminal blocks/connectors. Below is a breakdown of the specifications and characteristics of this component category. --- ### 1. General Specifications While specific manufacturers use this suffix for variations, it is most frequently identified as a **Radial Leaded Device** or a **Fixed Resistor/Fuse** component. | Feature | Specification | | :--- | :--- | | **Component Type** | Passive Electronic Component | | **Mounting Type** | Through-Hole (Radial) | | **Lead Finish** | Tin (Sn) or Matte Tin | | **RoHS Status** | Compliant | | **Packaging** | R2 often denotes "Tape and Reel" or specific Lead Spacing | --- ### 2. Key Technical Attributes If this part refers to a **Metal Oxide Varistor (MOV)** or a **PolySwitch (PTC)** (common for this numbering scheme): * **Overcurrent Protection:** Designed to protect circuits against excessive current surges. * **Self-Resettable (if PTC):** Unlike standard fuses, these "trip" to a high resistance state during a fault and reset once power is removed and the device cools. * **Voltage Rating:** Typically rated for low to medium voltage DC applications (e.g., 16V to 60V depending on the full prefix). --- ### 3. Decoding the Suffix "R2" In the electronics industry, the suffix after the main part number usually provides logistics or physical form factor data: 1. **Lead Configuration:** "R" often indicates a radial lead orientation (leads coming out of the same side). 2. **Packaging:** "2" can indicate the specific reel size or the spacing between the leads (e.g., 5.0mm vs 2.5mm). 3. **Resistance/Tolerance:** In some resistor series, R2 might denote a value (0.2 Ohms), though this is less common for this specific string. --- ### 4. Common Applications * **Consumer Electronics:** Protecting USB ports or battery charging circuits. * **Automotive:** Small motor protection or signal line safeguarding. * **Industrial:** Power supply input protection for sensors and controllers. --- ### Identification Tip To get the exact datasheet, you should look for the **Brand Logo** printed on the physical part. * If you see an **"L"**, it is Littelfuse. * If you see a **"TY"**, it is likely Tyco/TE Connectivity.