The part number **M5R83ZHJ-R** refers to a specific type of **Tactile Switch** (commonly known as a tact switch or push-button switch). These are mechanical switches that provide physical feedback (a "click") to the user when pressed. Below is a detailed breakdown of its electronic characteristics and specifications. --- ### 1. General Specifications | Feature | Description | | :--- | :--- | | **Component Type** | Tactile Switch | | **Mounting Type** | Surface Mount (SMD / SMT) | | **Operating Force** | Typically ranges from 160gf to 250gf (grams-force) | | **Contact Arrangement** | SPST - NO (Single Pole Single Throw - Normally Open) | | **Actuator Style** | Round Button | | **Termination** | Gull-wing or J-bend leads for PCB soldering | ### 2. Key Technical Parameters * **Voltage/Current Rating:** Usually rated for low power signals, typically **12V DC at 50mA**. * **Contact Resistance:** Very low, often **<100mΩ** initially. * **Insulation Resistance:** Typically **>100MΩ** at 100V DC. * **Dielectric Strength:** Capable of withstanding **250V AC** for 1 minute. * **Travel Distance:** Short stroke, usually between **0.25mm and 0.35mm**. * **Operating Life:** High durability, often rated for **100,000 to 500,000 cycles**. ### 3. Physical Construction The part is designed for automated assembly processes. The "-R" suffix usually denotes **Tape and Reel** packaging, which is standard for high-speed pick-and-place machines. * **Housing:** High-temperature thermoplastic (to withstand reflow soldering). * **Contact Dome:** Stainless steel or phosphor bronze with silver plating for high conductivity. * **Terminals:** Brass with silver or gold plating to prevent oxidation and ensure easy soldering. ### 4. Typical Applications These switches are ubiquitous in modern electronics due to their small footprint and reliability: 1. **Consumer Electronics:** Volume buttons on smartphones, power buttons on tablets. 2. **Home Appliances:** Control panels for microwaves, washing machines, and coffee makers. 3. **Industrial:** Reset buttons on PCBs and interface controllers. 4. **Automotive:** Dashboard controls and steering wheel buttons. ---