The **R10S-R2W3DC** is a specific part number for a precision **Electromechanical Relay**, typically manufactured by brands like **TE Connectivity (formerly Potter & Brumfield)**. These relays are known for their high sensitivity and are often used in dry circuit or low-power switching applications. Below is a detailed breakdown of its electronic components and specifications. --- ### 1. Part Number Breakdown Understanding the nomenclature helps identify the internal configuration: | Code Segment | Description | Specific Detail | | :--- | :--- | :--- | | **R10** | Series | R10 Series (Cradle-style Relay) | | **S** | Sensitivity | Super Sensitive (typically <100mW) | | **R** | Mounting/Terminals | PC Board / Solder Terminals | | **2** | Contact Form | 2 Form C (DPDT - Double Pole Double Throw) | | **W** | Contact Rating | Low Level / Dry Circuit (usually Gold-plated) | | **3** | Coil Resistance | Specific Ohm Value (corresponds to DC voltage) | | **DC** | Coil Power Type | Direct Current | --- ### 2. Key Electronic Specifications #### A. Coil Characteristics The "S" designation indicates a highly sensitive coil. Unlike standard relays that require significant current to toggle, the R10S series can often be triggered directly by low-power transistors or integrated circuits. * **Coil Voltage:** Depends on the specific numeric code (e.g., 12V, 24V). * **Power Consumption:** Very low, often ranging from **20mW to 100mW**. #### B. Contact Configuration (2 Form C) The "2" indicates a **DPDT (Double Pole Double Throw)** arrangement. * **Pole 1:** One Common, one Normally Closed (NC), one Normally Open (NO). * **Pole 2:** One Common, one Normally Closed (NC), one Normally Open (NO). * This allows the relay to switch two independent circuits simultaneously. #### C. Contact Material ("W") The "W" suffix usually denotes **Gold-clad Silver** or similar alloys. * **Purpose:** Designed for "Dry Circuits" (very low voltage/current where arcing doesn't occur to clean the contacts). * **Contact Resistance:** Extremely low and stable. --- ### 3. Physical & Mechanical Parts * **Cradle/Frame:** The internal structure that holds the armature. * **Dust Cover:** Usually a clear or opaque polycarbonate shell to protect the delicate contacts from contaminants. * **Return Spring:** A precision-calibrated spring that ensures the armature returns to the "Rest" position when coil power is removed. --- ### 4. Common Applications Due to the high sensitivity and DPDT configuration, this part is found in: * **Telecommunications:** Signal routing. * **Test Equipment:** Switching between measurement probes. * **Medical Electronics:** Low-power control signals. * **Vintage Audio:** Signal path switching where minimal interference is required. ---