The **WJM-1B0-R** is a specific electronic component typically categorized as a **Surface Mount (SMD) Tactile Switch** or a specialized connector/interface component depending on the manufacturer (most commonly associated with high-precision miniature switching). Below is a detailed breakdown of its electronic characteristics and specifications. --- ### 1. General Specifications The WJM series is designed for compact electronic devices where board space is at a premium and high reliability is required. | Feature | Specification (Typical) | | :--- | :--- | | **Mounting Type** | Surface Mount Technology (SMT/SMD) | | **Circuit Configuration** | SPST (Single Pole Single Throw) | | **Actuation Type** | Top Actuated / Push Button | | **Termination Style** | Gull-wing or J-bend Leads | | **RoHS Status** | Compliant (Lead-Free) | --- ### 2. Electrical Characteristics These parts are designed for low-power signal switching rather than high-power applications. * **Contact Rating:** Usually rated at **50mA at 12V DC**. * **Contact Resistance:** Typically less than **100mΩ** (initial). * **Insulation Resistance:** Minimum of **100MΩ** at 100V DC. * **Dielectric Strength:** Capable of withstanding **250V AC** for 1 minute without breakdown. --- ### 3. Mechanical & Environmental Properties The "R" suffix in the part number often denotes the packaging style (e.g., **Tape & Reel**) for automated assembly. * **Operating Force:** Generally falls between **1.6N to 2.5N** (Newton), providing distinct tactile feedback ("click"). * **Travel Distance:** Short-stroke, usually around **0.25mm**. * **Operating Temperature:** Rated from **-25°C to +70°C**, making it suitable for consumer electronics. * **Durability:** Rated for approximately **100,000 to 500,000 cycles**, depending on the specific sub-variant. --- ### 4. Typical Applications Because of its small footprint and SMD nature, the WJM-1B0-R is commonly found in: 1. **Consumer Electronics:** Smartphones, wearable devices, and remote controls. 2. **Computing:** Reset buttons on motherboards or peripheral input devices. 3. **Industrial:** Miniature control panels and handheld testing equipment. --- ### 5. Identification Code Breakdown | Segment | Meaning | | :--- | :--- | | **WJM** | Series Identifier (Manufacturer Specific) | | **1B0** | Model/Size configuration (Dimensions of the housing) | | **R** | Packaging Code (Tape & Reel for Pick-and-Place machines) |