The **WRS-1DA-R** is a specific model of a **Miniature Toggle Switch**, typically manufactured by companies like **Walsin** or similar electronic component vendors. It is commonly used for PCB (Printed Circuit Board) mounting to control the flow of current in a circuit. Below is a detailed breakdown of its electronic specifications and physical characteristics. ### 1. Technical Specifications The following table highlights the core electrical and mechanical parameters for the WRS-1DA-R series. | Feature | Specification | | :--- | :--- | | **Contact Configuration** | SPDT (Single Pole Double Throw) | | **Switch Operation** | ON-ON (Latching) | | **Contact Rating** | 5A @ 125VAC or 28VDC; 2A @ 250VAC | | **Contact Resistance** | 10 mΩ max. (initial) | | **Insulation Resistance** | 1,000 MΩ min. | | **Dielectric Strength** | 1,500 V RMS @ sea level | | **Operating Temperature** | -30°C to +85°C | | **Mechanical Life** | 40,000 make-and-break cycles | --- ### 2. Component Breakdown #### A. Contact Type: SPDT The **Single Pole Double Throw** configuration means the switch has one input (common) and two possible outputs. In an "ON-ON" configuration, the circuit is never truly "off"; rather, the current is redirected from one terminal to the other depending on the toggle position. #### B. Terminal Style: Right Angle (R) The **"-R"** suffix in the part number usually denotes a **Right Angle PCB Mount**. * Unlike standard vertical switches, the pins are bent at a 90-degree angle. * This allows the switch to be mounted on the edge of a board so the toggle protrudes from the side of a device casing. #### C. Materials * **Case & Bushing:** High-temperature PBT (Polybutylene terephthalate) or Nylon. * **Actuator:** Brass, chrome plated. * **Contacts:** Silver plated (standard) or Gold plated (for low-level switching). --- ### 3. Pinout Diagram (Typical) For a standard SPDT toggle switch, the pins are arranged as follows: | Pin Number | Function | | :--- | :--- | | **1** | Output A | | **2 (Center)** | Common (Input) | | **3** | Output B | * **Position 1:** Pin 2 is connected to Pin 1. * **Position 2:** Pin 2 is connected to Pin 3. --- ### 4. Applications Due to its miniature size and right-angle orientation, the WRS-1DA-R is frequently found in: * **Telecommunications:** Network switching equipment. * **Instrumentation:** Handheld test devices and medical equipment. * **Audio/Visual:** Pedal effects for guitars and mixer consoles. * **Computers:** Peripheral power or mode selection.