The **KUS-33-R** is a specific electronic component, typically identified as a **tactile switch** (often manufactured by companies like Mitsumi or generic high-quality switch providers). These parts are commonly found in consumer electronics, automotive controls, and interface panels. --- ## 1. Technical Specifications Below is a breakdown of the typical physical and electrical characteristics for the KUS-33-R series: | Property | Description | | :--- | :--- | | **Component Type** | Tactile Switch (Push-button) | | **Mounting Type** | Surface Mount (SMD / SMT) | | **Circuitry** | SPST-NO (Single Pole Single Throw - Normally Open) | | **Operating Force** | Typically 1.6N to 2.5N (Medium click feel) | | **Actuator Height** | 0.8mm to 1.5mm (Low profile) | | **Travel distance** | 0.25mm ± 0.1mm | --- ## 2. Electrical Characteristics These parts are designed for low-power signal switching rather than high-current power management. * **Maximum Rating:** DC 12V, 50mA. * **Contact Resistance:** Initially less than 100mΩ. * **Insulation Resistance:** 100MΩ min. at 100V DC. * **Dielectric Strength:** 250V AC for 1 minute. * **Durability:** Usually rated for 100,000 to 300,000 cycles. --- ## 3. Physical Construction The KUS-33-R is engineered for durability and compact sizing: 1. **Contact Dome:** Usually made of stainless steel with silver plating to ensure a crisp "click" and reliable electrical connection. 2. **Base:** High-temperature thermoplastic (LCP - Liquid Crystal Polymer) to withstand reflow soldering. 3. **Terminals:** Brass with silver or gold plating for high conductivity and oxidation resistance. 4. **Cover:** Nickel-plated steel or specialized film for dust protection. --- ## 4. Typical Applications Because of its small footprint and reliable tactile feedback, it is frequently used in: * **Automotive:** Steering wheel controls, door lock buttons, or infotainment dials. * **Consumer Tech:** Digital cameras, remote controls, and high-end audio equipment. * **Wearables:** Smartwatches or fitness trackers due to the low-profile SMD design.