The **DE09SAM1-R3** is a high-performance, D-Sub (D-Subminiature) connector commonly used for serial data communication, industrial control interfaces, and video output (VGA). It is specifically designed for PCB (Printed Circuit Board) mounting. --- ### 1. Technical Specifications The following table outlines the primary electrical and mechanical characteristics of the connector: | Feature | Specification | | :--- | :--- | | **Connector Type** | D-Sub (Standard) | | **Gender** | Male (Plug) | | **Number of Positions** | 9 Pins (DB9) | | **Mounting Type** | Right Angle, Through-Hole | | **Contact Plating** | Gold (Selectively plated for conductivity) | | **Current Rating** | 3A to 5A (Typical) | | **Voltage Rating** | 250V AC/DC | | **Termination Style** | Solder Tail | | **Housing Material** | Thermoplastic (PBT/LCP, UL 94V-0 rated) | --- ### 2. Physical Design Features * **Right Angle Orientation:** This allows the connector to sit flat on a PCB, with the mating face perpendicular to the board. This is ideal for rear-panel mounting on electronic enclosures. * **Metal Shell:** Provides structural integrity and EMI/RFI shielding to prevent signal interference. * **Boardlocks / Rivets:** The "-R3" suffix often indicates specific mounting hardware, such as threaded inserts or boardlocks that secure the connector to the PCB before soldering. * **Compact Footprint:** Uses the standard "E" size shell (the smallest D-sub shell size). --- ### 3. Pinout Configuration For a standard 9-pin (Male) D-Sub connector, the pins are typically assigned as follows for RS-232 communication: | Pin Number | Signal Name | Description | | :--- | :--- | :--- | | 1 | DCD | Data Carrier Detect | | 2 | RXD | Receive Data | | 3 | TXD | Transmit Data | | 4 | DTR | Data Terminal Ready | | 5 | GND | Ground | | 6 | DSR | Data Set Ready | | 7 | RTS | Request to Send | | 8 | CTS | Clear to Send | | 9 | RI | Ring Indicator | --- ### 4. Common Applications 1. **Industrial Automation:** Used for PLC (Programmable Logic Controller) programming and sensor interfaces. 2. **Telecommunications:** Modems and serial console ports for networking gear. 3. **Consumer Electronics:** Legacy VGA connections (though VGA typically uses 15 pins, the shell size is the same) or older peripheral connections. 4. **Medical Equipment:** Data logging and diagnostic interfaces. ---