The **M7R13FBJ-R** is a specific part number belonging to a series of **Tactile Switches** (often referred to as tact switches), commonly used in automotive and industrial electronics. This specific component is engineered for durability and tactile feedback in human-machine interface (HMI) applications. --- ### Technical Specifications Below is a breakdown of the typical electronic and physical characteristics of this component series: | Parameter | Specification (Typical) | |:---|:---| | **Component Type** | Tactile Switch (Momentary) | | **Mounting Type** | Surface Mount (SMD / SMT) | | **Circuit** | SPST-NO (Single Pole Single Throw - Normally Open) | | **Operating Force** | Typically ranges from 1.6N to 4.0N (depending on exact variant) | | **Actuator Height** | Specific to the "FBJ" configuration (usually flush or low-profile) | | **Operating Life** | 100,000 to 1,000,000 cycles | | **Termination Style** | Gull-wing or J-bend leads | --- ### Key Electronic Features 1. **Momentary Action:** The switch only remains in the "ON" state while physical pressure is applied. Once released, the internal spring mechanism returns the contact to the "OFF" position. 2. **Tactile Feedback:** The internal metal dome provides a "click" sensation to the user, confirming that the circuit has been closed. This is critical in automotive environments where the driver needs non-visual confirmation of an action. 3. **Gold or Silver Plating:** Most M7 series switches utilize silver-plated contacts for high conductivity or gold-plated contacts for corrosion resistance in harsh environments. 4. **Environmental Sealing:** The "R" suffix often denotes "Reel" packaging, but the series itself is frequently rated for high-temperature resistance, allowing it to withstand lead-free reflow soldering processes. --- ### Common Applications The M7R series is widely used in the following sectors: * **Automotive:** Steering wheel controls, dashboard buttons, and keyless entry fobs. * **Consumer Electronics:** Power buttons on high-end appliances and portable devices. * **Industrial:** Control panels and interface modules. --- ### Schematic Representation A basic representation of the internal circuit for this switch: ```text (Term 1) ----/ ---- (Term 2) (Switch) ``` *Note: In an SMD tactile switch, terminals 1 & 2 are often internally connected to terminals 3 & 4 to provide structural stability on the PCB.*