The part number **B-155-07-35-22-9** refers to a high-performance **SolderSleeve Shield Terminator** manufactured by **TE Connectivity / Raychem**. This component is specifically designed for grounding and terminating the shields of coaxial or shielded cables. --- ### 1. General Specifications This part belongs to the **B-155 series**, which is known for its "CWT" (Commercial Wall Tubing) technology. It provides an environmentally sealed, insulated, and encapsulated solder connection. | Feature | Specification | | :--- | :--- | | **Manufacturer** | TE Connectivity / Raychem | | **Product Type** | SolderSleeve (Shield Terminator) | | **Insulation Material** | Transparent Polyvinylidene Fluoride (Radiation cross-linked) | | **Solder Type** | Low-temperature Sn42Bi58 (Tin-Bismuth) | | **Temperature Range** | -55°C to +125°C | | **Sealing** | Environmental protection (Immersion resistant) | --- ### 2. Breakdown of the Part Number The alphanumeric string indicates specific physical dimensions and lead configurations: * **B-155**: Indicates the product family (Low-temperature SolderSleeves). * **07**: Refers to the size/diameter of the sleeve (typically ~7.0mm internal diameter). * **35**: Indicates the specific lead length or configuration. * **22**: Represents the wire gauge (AWG) of the pre-installed ground lead. * **9**: Denotes the color code of the ground lead (White). --- ### 3. Key Components & Mechanics The device consists of three primary elements that function simultaneously when heat is applied: 1. **Heat-Shrinkable Tubing:** A transparent sleeve that shrinks to tightly grip the cable insulation. 2. **Pre-fluxed Solder Ring:** Positioned in the center. When heated, it melts and flows into the shield braid and ground wire, creating a permanent electrical bond. 3. **Thermoplastic Sealing Rings:** Located at both ends. They melt to provide a moisture-proof seal against the wire jacket. --- ### 4. Technical Advantages * **One-Step Installation:** Combines soldering, insulating, and sealing into a single heating process. * **Inspection:** The transparent sleeve allows for 100% visual inspection of the solder joint. * **Strain Relief:** The shrunk tubing provides mechanical strength and protects the connection from vibration. * **Low Temperature:** The Sn42Bi58 solder melts at a lower temperature, preventing damage to heat-sensitive cable jackets (like PVC). ---