The **STD05W-R** is a specific type of industrial cable identification marker. It belongs to the **STD (Snap-On)** series, primarily manufactured by TE Connectivity (Raychem) or similar electrical component suppliers. These are essential for wire management and identification in electrical panels and circuitry. --- ### 1. Technical Specifications The part number follows a specific nomenclature that defines its physical and functional properties. | Parameter | Specification | Details | | :--- | :--- | :--- | | **Series** | STD Series | Snap-on markers for pre-terminated wires | | **Size Code** | 05 | Fits wire diameters: 2.3mm to 3.0mm | | **Marking/Legend** | R | The character printed on the marker is the letter "R" | | **Color** | White | Standard background color (W) | | **Material** | Polyoxymethylene (POM) | High-grade engineering plastic (Delrin) | | **Temperature Range** | -40°C to +106°C | Suitable for harsh industrial environments | --- ### 2. Key Features The STD05W-R is designed for efficiency and durability in electronic assembly: * **Side-Entry (Snap-On):** Unlike heat-shrink sleeves, these can be applied *after* the wire has been terminated or soldered to a connector. * **Grip Mechanism:** The "chevron" cut design allows markers to lock together, ensuring that multi-character codes (e.g., "R12") stay aligned and do not rotate independently. * **Durability:** The printing is typically applied via a high-contrast process that resists abrasion, grease, and common cleaning solvents used in electronics. * **Wand Applicator:** They are often supplied on a plastic "wand" which allows the technician to snap the marker onto the wire without touching it, preventing oil transfer from fingers. --- ### 3. Common Applications * **Control Panels:** Identifying phases or specific signal lines (where 'R' might denote a Right channel, Reset line, or Phase R). * **Maintenance:** Labeling existing wiring during repairs where disconnecting the wire is not feasible. * **Telecommunications:** Organizing complex cable looms in rack systems. ---