The **W2SP-12B-R2** is a specific electronic component belonging to the series of **wire-to-board connectors**, commonly associated with manufacturers like JST or compatible high-density connector series. These are designed for space-constrained applications requiring secure electrical connections. --- ### 1. General Specifications The part number typically breaks down into specific physical and electrical characteristics: | Feature | Description | | :--- | :--- | | **Type** | Wire-to-Board Header (SMT or Through-hole) | | **Pitch** | Typically 2.0mm or 2.5mm (depending on the specific series) | | **Positions** | 12 Pins (indicated by the "12" in the part number) | | **Configuration** | Double Row (indicated by the "B" or "W2" prefix) | | **Mounting Orientation** | Right Angle or Vertical (R2 often denotes a specific Revision or Reel packaging) | --- ### 2. Key Electronic Parts & Materials To understand the "electronic parts" of this component, we look at the internal and external construction: #### A. Contact Pins (The Conductive Path) * **Material:** Usually Phosphor Bronze or Brass. * **Plating:** Tin-plated (standard) or Gold-plated (high reliability). * **Function:** Ensures low contact resistance and prevents oxidation. #### B. Housing (The Insulator) * **Material:** Thermoplastic (e.g., LCP - Liquid Crystal Polymer or Nylon 66). * **Rating:** Usually UL94V-0 (flame retardant). * **Function:** Provides dielectric insulation between the 12 pins and structural support. #### C. Solder Tabs (The Mechanical Anchor) * **Material:** Reinforced metal tabs. * **Function:** For SMT versions, these tabs are soldered to the PCB to provide strain relief so that pulling the cable doesn't rip the pads off the board. --- ### 3. Electrical Characteristics When integrated into a circuit, the W2SP-12B-R2 must operate within these typical limits: | Parameter | Typical Value | | :--- | :--- | | **Current Rating** | 1.0A to 3.0A AC/DC | | **Voltage Rating** | 100V to 250V AC/DC | | **Contact Resistance** | < 20 mΩ (Initial) | | **Insulation Resistance** | > 1000 MΩ | | **Temperature Range** | -25°C to +85°C | --- ### 4. Typical Applications Because of its 12-pin density, this part is frequently found in: 1. **LCD/LED Backlighting:** Connecting power to display panels. 2. **Internal Power Distribution:** Connecting a power supply unit (PSU) to a motherboard. 3. **Industrial Controllers:** Signal routing for sensors and actuators.