The **STD01W-R** is a specific type of industrial identification marker, primarily used for wire and cable labeling. It belongs to the **STD (Snap-On)** series manufactured by TE Connectivity (Raychem). Below is a detailed breakdown of its specifications and electronic/mechanical characteristics. --- ### 1. Technical Specifications The part number `STD01W-R` follows a specific nomenclature where each character defines a feature. | Feature | Specification | Description | | :--- | :--- | :--- | | **Series** | STD | Snap-on marker (Side-entry) | | **Size** | 01 | Designed for wire diameters 1.0mm to 1.4mm | | **Color** | W (White) | High-contrast white background | | **Legend** | R | The specific character printed on the marker | | **Material** | Polyoxymethylene (POM) | Also known as Acetal; high strength/stiffness | --- ### 2. Key Characteristics #### Mechanical Properties * **Snap-On Design:** Unlike heat-shrink tubing, these can be applied *after* the wire has been terminated or connected. * **Grip Mechanism:** Features an "expanding profile" that allows the marker to lock onto the wire insulation, preventing rotation or sliding. * **Durability:** The Acetal material provides excellent chemical resistance to fuels, lubricants, and cleaning solvents commonly found in electronic assemblies. #### Environmental Standards * **Temperature Range:** Typically rated for **-40°C to +106°C**. * **UV Resistance:** High resistance to fading, making it suitable for long-term industrial use. * **Flammability:** Generally meets standard industrial safety requirements for low smoke and toxicity. --- ### 3. Application Use Cases The STD01W-R is commonly utilized in the following electronic and electrical environments: * **Control Panels:** Identifying signal wires in dense PLC (Programmable Logic Controller) cabinets. * **Telecommunications:** Labeling patch cables or internal chassis wiring. * **Maintenance:** Quick identification of faulty lines without disconnecting the circuit. --- ### 4. Comparison with Other Sizes The "01" in the part number indicates the size. For context, here is how it fits within the STD series: | Part Number | Wire Diameter Range (mm) | Typical AWG Size | | :--- | :--- | :--- | | STD01 | 1.00 - 1.40 | 22 - 18 AWG | | **STD01W-R** | **1.00 - 1.40** | **Specific "R" Legend** | | STD02 | 1.40 - 1.80 | 18 - 16 AWG | | STD03 | 1.90 - 2.60 | 16 - 14 AWG | ---