Based on the identification of the part number **STB02-R-8**, this component belongs to the **TE Connectivity (Raychem)** line of wire and cable markers. Specifically, it is a pre-printed, snap-on cable marker used for identification in electrical and electronic assemblies. --- ### 1. Component Overview The STB series markers are designed for permanent identification of wires and small cables. They are widely used in control panels, telecommunications, and industrial wiring to ensure easy maintenance and troubleshooting. ### 2. Technical Specifications | Feature | Detail | | :--- | :--- | | **Manufacturer** | TE Connectivity / Raychem | | **Series** | STB (Snap-on Marker) | | **Legend (Marking)** | Number **"8"** | | **Color** | Red (Standard color coding for number 8) | | **Material** | Plastic (Polyoxymethylene / POM) | | **Mounting Type** | Snap-on (Applicable after termination) | | **Expandability** | The "R" design allows for a secure grip on various diameters | --- ### 3. Key Electronic & Mechanical Properties * **Non-Conductive Material:** Since these are made from high-quality polymers, they provide excellent insulation and do not interfere with the electrical signals within the wire. * **Chemical Resistance:** They are resistant to common industrial fluids, including oils, fuels, and cleaning solvents. * **Temperature Range:** Typically rated for operation between **-40°C to +106°C**, making them suitable for high-heat electronic environments. * **Wand Application:** These markers are usually supplied on an applicator wand, allowing the technician to snap the marker onto the wire without touching the wire insulation directly. --- ### 4. Part Number Breakdown The nomenclature follows a specific logic: 1. **STB:** Series name (Snap-on Terminal Block/Wire markers). 2. **02:** Size code (Determines the wire diameter range, typically fits roughly 1.4mm to 1.8mm OD). 3. **R:** Color code (R = Red). 4. **8:** The specific printed character on the marker. --- ### 5. Application Scenarios * **PCB Interconnects:** Identifying specific signal wires in a multi-wire harness. * **Industrial Control Gear:** Marking power lines in a DIN-rail assembly. * **Maintenance:** Retrofitting identification onto wires that have already been crimped or soldered into place.