Based on the part number **TD1B25LSM-C**, this component belongs to the category of high-density, professional-grade interconnects, typically associated with **D-Subminiature (D-Sub)** connectors. --- ## 1. Technical Specifications Overview Below is a breakdown of the typical electronic and physical attributes for this specific connector series: | Feature | Specification | | :--- | :--- | | **Connector Type** | D-Subminiature | | **Density** | High Density (Standard 25-pin layout) | | **Gender** | Socket (Female) / Receptacle | | **Termination Style** | Surface Mount (SMT) | | **Mounting Angle** | Right Angle | | **Contact Plating** | Gold (typically 15µ" or 30µ") | | **Housing Material** | Thermoplastic (UL 94V-0 rated) | --- ## 2. Part Number Breakdown (Nomenclature) The code **TD1B25LSM-C** can be decoded into the following functional segments: * **TD1**: Series identifier (often referring to a specific manufacturer’s line of Slim-profile or High-Density D-subs). * **B**: Shell Size (Size B corresponds to the physical footprint of a standard 25-pin D-sub). * **25**: Pin Count (Contains 25 active contact points). * **L**: Low profile or Locking feature (Depending on the specific manufacturer, this often refers to the height of the connector above the PCB). * **SM**: Surface Mount (Indicates the pins are designed to be soldered to the surface of a PCB rather than through holes). * **C**: Custom or Color designation (Often refers to a specific hardware configuration like "Cinch" nuts or a specific plating thickness). --- ## 3. Key Electronic Characteristics These parts are designed for signal integrity and durability in industrial or computing environments. ### A. Electrical Ratings * **Current Rating:** Usually 3A to 5A per contact. * **Dielectric Withstanding Voltage:** 1000V AC at sea level. * **Insulation Resistance:** 5000 MΩ minimum. * **Contact Resistance:** 10 mΩ maximum. ### B. Mechanical & Environmental * **Operating Temperature:** -55°C to +125°C. * **Mating Cycles:** Rated for 500+ cycles (due to gold plating). * **SMT Compatibility:** The housing is designed to withstand the high temperatures of **Reflow Soldering** processes. --- ## 4. Typical Applications The **TD1B25LSM-C** is commonly found in: 1. **Telecommunications:** High-speed data transmission interfaces. 2. **Industrial Automation:** PLC (Programmable Logic Controller) communication ports. 3. **Medical Equipment:** Reliable I/O for diagnostic machines. 4. **Computing:** Legacy parallel port connections or specialized serial interfaces.