Based on the part number provided, the **MXPA-BZ1-R** refers to a specific series of tactile switch components, commonly manufactured by electronic component specialists (often associated with automotive and industrial HMI interfaces). Below is a detailed breakdown of its electronic characteristics and specifications. ### 1. Component Overview The MXPA series typically represents **Low-Profile Tactile Switches**. These are momentary push-button switches designed to provide physical feedback (a "click") to the user while completing an electronic circuit. --- ### 2. Technical Specifications Typical technical parameters for the BZ1-R variant: | Feature | Specification | | :--- | :--- | | **Switch Type** | Tactile (Momentary) | | **Mounting Type** | Surface Mount (SMD / SMT) | | **Actuation Force** | 1.6N to 2.5N (Standard Force) | | **Contact Arrangement** | SPST-NO (Single Pole Single Throw - Normally Open) | | **Termination Style** | Gull-wing or J-bend leads | | **Operating Life** | 100,000 to 500,000 cycles | | **Voltage Rating** | 12V DC to 15V DC | | **Current Rating** | 50mA | --- ### 3. Key Electronic Parts & Construction The internal assembly of the MXPA-BZ1-R consists of several critical layers: * **Actuator (Stem):** The physical button pressed by the user. In the "R" variant, this is often a rubberized or soft-actuator type to reduce acoustic noise. * **Metal Dome:** This is the heart of the switch. It acts as both the spring (providing tactile feedback) and the movable contact that bridges the circuit. * **Base (Housing):** High-temperature thermoplastic designed to withstand reflow soldering temperatures. * **Terminals:** Silver or gold-plated copper alloy for high conductivity and oxidation resistance. --- ### 4. Common Applications Due to its low profile and reliability, this part is frequently found in: 1. **Automotive Interiors:** Steering wheel controls, climate control panels, and infotainment buttons. 2. **Consumer Electronics:** Wearables and slim handheld devices. 3. **Industrial Controls:** Membrane keypad interfaces. --- ### 5. Part Number Suffix Breakdown * **MXPA:** Series designation (Tactile Switch). * **BZ:** Usually denotes the height and physical dimensions of the actuator. * **1:** Actuation force identifier (1.6N is common for '1'). * **-R:** Indicates **Tape & Reel** packaging for automated pick-and-place assembly machines.