The **KMMLS-1BC-R** is a specific electronic component, typically categorized as a **Surface Mount (SMT) Micro Switch** or a tactile leaf switch, often utilized in consumer electronics for detection or power control. Below is a detailed breakdown of its electronic specifications and characteristics. --- ### 1. General Specifications The part number follows a specific nomenclature common in miniature switch manufacturing (often associated with brands like **Kingley** or similar SMT switch producers). | Feature | Description | | :--- | :--- | | **Component Type** | Micro-Motion Detection Switch | | **Mounting Type** | Surface Mount Technology (SMT/SMD) | | **Contact Form** | Single Pole Single Throw (SPST) | | **Operation Type** | Momentary (Normally Open or Normally Closed) | | **Orientation** | Right Angle or Vertical (depending on exact sub-series) | --- ### 2. Electrical Characteristics These parts are designed for low-power signal switching rather than high-current power distribution. * **Contact Rating:** Usually rated at **5V - 12V DC** with a current capacity of **1mA to 50mA**. * **Contact Resistance:** Typically low, usually **< 100mΩ** to ensure signal integrity. * **Insulation Resistance:** Usually **> 100MΩ** at 100V DC. * **Dielectric Strength:** Capable of withstanding **100V - 250V AC** for one minute. --- ### 3. Mechanical & Material Properties The "1BC" and "R" suffixes often denote specific physical configurations: * **Actuation Force:** Very light, typically ranging from **30gf to 70gf** (gram-force). * **Durability:** Rated for high cycles, often **50,000 to 100,000 operations**. * **Plating:** Contacts are usually **Gold-plated** or **Silver-plated** to prevent oxidation and ensure reliable conduction over time. * **Packaging ("R"):** The "R" usually indicates **Tape and Reel** packaging, intended for automated pick-and-place assembly lines. --- ### 4. Typical Applications Due to its small footprint and sensitivity, the KMMLS-1BC-R is found in: 1. **Mobile Devices:** Detecting the insertion of an audio jack or a charging cable. 2. **Smartwatches:** Functioning as side buttons or reset switches. 3. **Laptops:** Detecting when a lid is closed or a peripheral is docked. 4. **Cameras:** Shutter focus detection (half-press mechanisms). --- ### 5. Circuit Symbol In a schematic, this part is represented as a simple momentary switch: ```text / ---o o--- (Switch) ```