The **47DM-1116-R/Q** refers to a high-performance **miniature RF (Radio Frequency) connector/switch** typically used in mobile communication devices. These parts are often categorized as "Micro-RF Switches" or "Test Probes" used for circuit verification and antenna signal routing. --- ### 1. Technical Specifications Below is a breakdown of the typical electronic characteristics for this series: | Property | Description/Value | | :--- | :--- | | **Component Type** | Micro RF Switch Connector | | **Frequency Range** | DC up to 6 GHz (Standard for 4G/5G/Wi-Fi) | | **Impedance** | 50 Ohms (Standard RF matching) | | **Insertion Loss** | Typically < 0.1dB to 0.5dB (depending on frequency) | | **Durability** | ~100 to 500 mating cycles | | **Mounting Type** | SMT (Surface Mount Technology) | | **Height** | Usually ultra-low profile (approx. 1.1mm to 1.6mm) | --- ### 2. Functional Purpose The "DM" series parts serve two primary roles within a PCB (Printed Circuit Board) assembly: 1. **Signal Routing:** Under normal conditions, the internal switch is "closed," allowing the signal to flow from the internal circuitry to the device's internal antenna. 2. **Diagnostic Testing:** When a test probe is inserted into the connector, the internal mechanical switch "opens." It disconnects the internal antenna and redirects the RF signal to the testing equipment. This allows technicians to measure signal strength and quality without interference. --- ### 3. Key Physical Features * **Gold Plating:** The contact points are usually gold-plated to ensure low contact resistance and prevent oxidation. * **Small Footprint:** Designed for high-density layouts in smartphones, tablets, and IoT modules. * **Orientation (R/Q):** The suffix "R" or "Q" often denotes the specific packaging type (e.g., Tape & Reel) or minor geometric variations in the housing footprint. --- ### 4. Applications * **Smartphones:** Main antenna and diversity antenna testing. * **Wireless Modules:** Testing Wi-Fi, Bluetooth, and GPS signal integrity. * **IoT Devices:** Ensuring connectivity in small-form-factor wearable tech. ---