The **W2SP-1C3-R/CE** is a high-precision, subminiature basic switch manufactured by **OMRON**. It is primarily designed for high reliability in tight spaces, often used in automotive, industrial, and consumer electronics. --- ### 1. Key Technical Specifications Below are the primary electronic and mechanical characteristics of the W2SP series: | Parameter | Specification | | :--- | :--- | | **Switch Type** | Subminiature Basic Switch | | **Contact Form** | SPDT (Single Pole Double Throw) | | **Actuator Type** | Pin Plunger | | **Operating Force (OF)** | 1.47 N (Approx. 150 gf) | | **Rated Voltage** | 30 VDC | | **Rated Current** | 0.1A (Gold-alloy crossbar contacts) | | **Terminal Type** | Solder Terminals | | **Environmental Protection** | IP67 (Dust-tight and Water-resistant) | --- ### 2. Design and Construction The internal parts of the W2SP-1C3-R/CE are engineered for durability and environmental resistance: * **Contact Material:** It typically uses gold-alloy crossbar contacts. This is crucial for "micro-load" applications (low voltage/low current) because gold prevents oxidation and ensures stable electrical contact. * **Sealing Structure:** The "CE" designation often refers to the compliance and sealing standards. The switch uses an internal rubber seal and epoxy resin at the terminal base to achieve an **IP67 rating**, making it suitable for environments exposed to water or dust. * **Mounting Side:** The **"R"** in the suffix usually denotes the mounting orientation or a specific terminal bend (Right-side mounting/wiring) relative to the plunger. --- ### 3. Functional Components The switch operates via three main internal electronic components: 1. **COM (Common Terminal):** The input point for the current. 2. **NC (Normally Closed):** The circuit is complete when the plunger is at rest. 3. **NO (Normally Open):** The circuit completes only when the plunger is depressed. --- ### 4. Common Applications * **Automotive:** Door latch detection, seatbelt buckle sensors, and hood switches. * **Industrial:** Limit sensing in small robotic arms or valve position detection. * **Consumer Gear:** Presence detection in high-end appliances where moisture might be present. ---