The **D4G0106N-R30F** is a specialized high-performance rotary switch manufactured by **Electroswitch**. This specific model belongs to the D4 series, known for its rugged construction and reliability in military, industrial, and high-end audio applications. --- ## 1. Technical Specifications Below are the primary electronic and mechanical characteristics of the D4G0106N-R30F: | Parameter | Specification | | :--- | :--- | | **Series** | D4 (Open Frame) | | **Number of Positions** | 6 | | **Number of Poles** | 1 | | **Number of Decks** | 1 | | **Angle of Throw** | 30° | | **Contact Rating (Current)** | 1.5A @ 115VAC / 28VDC | | **Contact Material** | Silver Alloy | | **Termination Style** | Solder Lug | | **Actuator Type** | Flatted Shaft (3.17mm / 1/8" Diameter) | --- ## 2. Key Electronic Features ### A. Non-Shorting Contacts (Break-Before-Make) The "N" in the part number indicates a **Non-shorting** configuration. This means that as you turn the dial, the connection to the previous position is broken before the connection to the next position is made. This prevents momentary electrical overlaps between two circuits. ### B. High Reliability (Military Grade) These switches are designed to meet or exceed **MIL-S-3786** standards. This ensures they can operate in harsh environments with significant vibration, shock, and temperature fluctuations. ### C. Low Contact Resistance The use of silver alloy contacts ensures minimal signal loss and low thermal EMF, making it ideal for precision instrumentation and high-fidelity audio signal routing. --- ## 3. Physical Construction The D4G series features an **Open Frame** design. This provides several advantages: * **Heat Dissipation:** Better airflow around contacts. * **Visual Inspection:** Allows technicians to verify contact state and cleanliness. * **Field Maintenance:** Easier to clean or lubricate compared to sealed units. --- ## 4. Typical Applications * **Test Equipment:** Selecting ranges on voltmeters or oscilloscopes. * **Communication Radios:** Frequency or channel selection. * **High-End Audio:** Input selectors for pre-amplifiers or gain staging. * **Industrial Controls:** Manual mode selection for heavy machinery.