The **A108T1CWCQ0Q** is a specific electronic component manufactured by **TE Connectivity / Alcoswitch**. It belongs to the **Gemini A Series** of subminiature toggle switches. Below is a detailed breakdown of its electronic parts, specifications, and construction. --- ### 1. Technical Specifications The part number encodes specific mechanical and electrical characteristics. Here is the data breakdown: | Characteristic | Specification | | :--- | :--- | | **Switch Function** | SPDT (Single Pole Double Throw) | | **Switch Operation** | ON-NONE-ON (Maintained) | | **Contact Rating** | 5A @ 120VAC / 28VDC; 2A @ 250VAC | | **Contact Plating** | Silver (Q-type plating) | | **Termination Style** | PC Pin (Straight) | | **Actuator Style** | Standard Round Toggle (10.41mm / 0.410") | | **Bushing Type** | 1/4-40 Threaded (Splashproof) | | **Mounting Type** | Panel Mount / Through-Hole | --- ### 2. Breakdown of the Internal Components The device consists of several critical electronic and mechanical sub-assemblies: #### A. The Actuator (Toggle) * **Material:** Usually brass, chrome-plated for durability. * **Function:** This is the interface the user moves. It acts as a lever to pivot the internal contact mechanism. #### B. The Contact System (The "Heart") * **Wiping Action:** The internal contacts utilize a "wipe" design, which helps clear oxidation from the contact surfaces every time the switch is toggled. * **Silver Plating:** The "Q" in the part number signifies **Silver Contacts**. Silver provides the highest electrical conductivity but is prone to sulfidation, making it ideal for power applications (up to 5A) rather than low-level logic signals. #### C. The Housing & Insulation * **Base/Body:** Typically made of Diallyl Phthalate (DAP) or a similar high-temperature thermoset plastic. This ensures the terminals stay isolated and the switch can withstand soldering heat. * **Bushing:** The "CW" indicates a **Splashproof** or sealed bushing design, often featuring an O-ring to prevent moisture or dust from entering the switch body from the front panel. #### D. Terminals * **Material:** Copper alloy with silver plating. * **Connection:** These are designed for through-hole soldering on a PCB or point-to-point wiring. --- ### 3. Part Number Decoder To understand what each segment of **A108T1CWCQ0Q** means: * **A108:** Model Series (SPDT, ON-ON). * **T1:** Actuator height/style (0.410" height). * **CW:** Bushing style (Threaded, Splashproof). * **C:** Termination type (Printed Circuit/PC Pin). * **Q:** Contact Material (Silver). * **0:** No special branding/options. * **Q:** Final plating/packaging indicator. --- ### 4. Applications Due to its rugged construction and 5A rating, this switch is commonly used in: * **Industrial Control Panels:** For setting modes or power states. * **Medical Equipment:** Where reliability and splash resistance are needed. * **Audio/Visual Gear:** Signal routing or power switching. ---