The term **04Y-R** typically refers to a specific identification code used in high-density electronic connectors, most notably within the **JST (Japan Solderless Terminals)** family or similar wire-to-board interconnect systems. Specifically, this code usually points to the **JST SUR series** (0.8mm pitch) or similar ultra-compact insulation displacement connectors (IDC). --- ### 1. Technical Specifications Below are the typical specifications associated with the 04Y-R component: | Feature | Specification | | :--- | :--- | | **Component Type** | Housing / Connector (Female) | | **Number of Circuits** | 4 Pins | | **Pitch** | 0.8 mm (Ultra-compact) | | **Configuration** | Single Row, Right Angle/Side Entry | | **Mounting Type** | IDC (Insulation Displacement) or Crimp | | **Voltage Rating** | 30V AC/DC | | **Current Rating** | 0.5A - 1.0A (depending on wire gauge) | | **Color Code** | Yellow (Indicated by the "Y" in the part number) | --- ### 2. Part Number Breakdown The nomenclature for these parts follows a standardized logic: * **04**: Indicates the **Number of Positions** (4 pins). * **Y**: Indicates the **Color/Keying** (Yellow). This is often used to prevent "mismating" when multiple 4-pin connectors are on the same board. * **R**: Generally stands for **Retainer** or **Receptacle**, or in some cases, indicates a specific **Packaging** (Reel). --- ### 3. Key Features & Use Cases These parts are designed for miniaturized electronic devices where space is at a premium. #### **Main Characteristics** * **IDC Technology**: Allows for rapid termination without stripping individual wires, which increases manufacturing speed. * **Twin U-slot**: Usually features a double-contact point to ensure high electrical reliability despite the tiny size. * **Locking Mechanism**: Often includes a friction lock to prevent the connector from vibrating loose. #### **Common Applications** 1. **LCD Displays**: Connecting backlight or control signals in small screens. 2. **Drones/RC Gear**: Used for GPS modules or camera gimbals where weight is critical. 3. **Laptops/Tablets**: Internal battery or speaker connections. 4. **Handheld Medical Devices**: Internal sensor wiring. --- ### 4. Typical Mating Headers The 04Y-R receptacle usually mates with Surface Mount Technology (SMT) headers. For example: * **BM04B-SURS-TF**: A 4-pin shrouded header designed to receive this specific yellow housing.