The **FRT-01-R** is an electronic component categorized as a **Surface Mount Device (SMD) Tactile Switch**, specifically designed by manufacturers like CIT Electronics or similar specialty switch providers. It is widely used in compact consumer electronics for user-interface inputs. --- ### 1. Technical Specifications The following table summarizes the primary electrical and mechanical characteristics of the FRT-01-R: | Parameter | Specification | | :--- | :--- | | **Switch Type** | Tactile (Momentary) | | **Mounting Type** | Surface Mount (SMT) / Right Angle | | **Contact Rating** | 50mA @ 12V DC | | **Contact Resistance** | 100 mΩ Max | | **Insulation Resistance** | 100 MΩ Min @ 100V DC | | **Operating Force** | 160gf ± 50gf (Standard) | | **Actuator Style** | Side-actuated (Right Angle) | | **Life Cycle** | ~50,000 to 100,000 cycles | --- ### 2. Key Electronic Features #### A. Right-Angle Configuration The "R" in the suffix typically denotes a **Right-Angle** orientation. This means the actuator is pressed horizontally relative to the PCB. This is critical for devices where the button must protrude from the side of a casing (e.g., volume buttons on a smartphone or power buttons on a tablet). #### B. Momentary Action This is a "normally open" (NO) switch. The electrical circuit is only completed while the button is physically held down. Once released, the internal spring mechanism (usually a stainless steel dome) breaks the connection. #### C. Tactile Feedback The internal metal dome provides a distinct "click" sensation and sound. This informs the user that the switch has successfully actuated without needing to look at the device. --- ### 3. Construction and Materials The component is built to withstand standard reflow soldering temperatures: 1. **Base:** High-temperature thermoplastic (usually LCP or Nylon). 2. **Contacts:** Silver-plated copper alloy for high conductivity and oxidation resistance. 3. **Actuator:** Plastic stem that transfers physical force to the internal dome. 4. **Cover:** Nickel-silver or stainless steel plate to protect internal parts. --- ### 4. Common Applications Due to its small footprint and side-actuation, the FRT-01-R is found in: * **Wearables:** Smartwatches and fitness trackers. * **Portable Audio:** MP3 players and Bluetooth headphones. * **Medical Devices:** Handheld diagnostic tools. * **Consumer Tech:** Digital cameras and remote controls.