The part number **A-DSF37LPIII-FP-R** refers to a high-density, professional-grade D-Subminiature connector, typically manufactured by **Assmann WSW Components**. It is widely used in industrial, telecommunications, and computing environments for secure data signal transmission. --- ### 1. Technical Specifications Below is a breakdown of the core technical attributes for this component: | Feature | Specification | | :--- | :--- | | **Connector Type** | D-Subminiature (Female / Socket) | | **Number of Positions** | 37 Pins | | **Mounting Type** | Through-Hole, Right Angle | | **Contact Termination** | Solder | | **Flange Feature** | Low Profile (LP) with Mounting Hardware | | **Plating** | Selective Gold (Flash or 30µ") | | **Orientation** | 90° (Right Angle) | | **RoHS Status** | Compliant (-R suffix) | --- ### 2. Detailed Part Number Breakdown The alphanumeric code describes specific mechanical and electrical properties: * **A**: Assmann WSW brand prefix. * **DSF**: D-Sub Female (Socket/Receptacle). * **37**: Number of contacts (standard density). * **LP**: Low Profile design, saving vertical space on the PCB. * **III**: Designator for mounting style (often includes specific bracket types or board locks). * **FP**: Front Panel mounting or specific "Fast-Pass" / Flush-Mounting features. * **R**: RoHS compliant (Lead-free construction). --- ### 3. Key Component Features * **Right Angle Orientation:** Designed specifically for PCB edge mounting where the cable plugs in parallel to the circuit board. * **Space Saving:** The "Low Profile" (LP) designation means the connector body sits closer to the board surface, allowing for tighter stacking of PCBs in rack-mount systems. * **Mechanical Stability:** Usually equipped with "Boardlocks" or "Harpoons" and threaded nuts to ensure the connector does not rip off the PCB during cable insertion/extraction. * **EMI/RFI Shielding:** The metal shell (usually tin-plated steel) provides grounding and reduces electromagnetic interference. --- ### 4. Common Applications 1. **Industrial Controllers:** Used for RS-232, RS-422, or RS-485 communication interfaces. 2. **Telecommunications:** Connection points for networking hardware and switchgear. 3. **Medical Equipment:** Reliable signal routing for diagnostic machinery. 4. **Legacy Computing:** Parallel ports or specialized I/O interfaces.