The **R10S-R2W2AC** is a specific part number from the **R10 Series** of electromagnetic relays, originally manufactured by TE Connectivity (Potter & Brumfield). These relays are renowned for their versatility, compact size, and multi-pole configurations. --- ## 1. Technical Specifications Breakdown The alphanumeric code provides specific details about the relay's construction and electrical characteristics: | Parameter | Specification | Description | | :--- | :--- | :--- | | **Series** | R10 | Low profile, multi-pole cradle-type relay. | | **Sensitivity** | S | Sensitive DC coil (requires less power to activate). | | **Mounting** | R | PCB Terminal / Through-hole mounting. | | **Contact Arrangement** | 2 | 2 Form C (DPDT - Double Pole Double Throw). | | **Contact Material** | W | Silver-cadmium oxide contacts (good for general loads). | | **Coil Voltage** | 2 | Indicates the coil resistance/voltage rating (typically 12V or 24V DC depending on sub-series). | | **Case Style** | AC | Clear polycarbonate dust cover. | --- ## 2. Key Electronic Components ### A. The Coil (Actuator) The "S" designation indicates a **Sensitive DC Coil**. * **Function:** Converts electrical energy into a magnetic field to move the armature. * **Power Consumption:** Sensitive coils typically operate at 50mW to 500mW, making them ideal for circuits where driving current is limited (e.g., transistor-driven circuits). ### B. The Contacts (Switching) * **2 Form C (DPDT):** The relay contains two independent sets of Changeover switches. Each set has a Common (COM), Normally Open (NO), and Normally Closed (NC) pin. * **Material (W):** Silver-cadmium oxide. This material is chosen for its excellent resistance to "welding" and material transfer during high-inrush current events. ### C. Mechanical Housing * **Dust Cover (AC):** The "AC" suffix denotes a transparent plastic enclosure. This protects the internal mechanical linkages from dust and debris while allowing for visual inspection of the contact state. --- ## 3. Electrical Characteristics (Typical) | Feature | Rating | | :--- | :--- | | **Contact Rating** | 2A to 7.5A (Depending on voltage/load type) | | **Max Switching Voltage** | 120VAC / 30VDC | | **Dielectric Strength** | 500V rms between open contacts | | **Operating Temperature** | -55°C to +75°C | --- ## 4. Common Applications * **Industrial Controls:** Logic level switching in control panels. * **Telecommunications:** Signal routing and circuit isolation. * **Test Equipment:** Multi-channel switching where space is at a premium. * **Audio Equipment:** Signal path bypass and speaker protection.