The **WJM-1B0-R/Q** is a specific electronic component typically categorized as a **Micro-Switch** or **Detection Switch**, often utilized in consumer electronics, automotive components, and industrial control interfaces. Below is a detailed breakdown of its technical characteristics and electronic properties. --- ### 1. General Specifications The WJM series is designed for low-profile applications where space is limited. The "R/Q" suffix usually denotes specific packaging (Reel) or terminal configurations. | Feature | Specification (Typical) | | :--- | :--- | | **Component Type** | Detector Switch / Micro-action Switch | | **Circuitry** | SPST (Single Pole Single Throw) | | **Switch Function** | Normally Open (NO) or Normally Closed (NC) | | **Mounting Type** | Surface Mount (SMT) or Through-Hole (THT) | | **Actuator Type** | Lever / Push Button | --- ### 2. Electrical Characteristics These parameters define the limits within which the switch can operate safely without damaging the internal contacts. * **Rating:** Typically supports low voltage signals, often **DC 12V 50mA** or **DC 5V 10mA**. * **Contact Resistance:** Generally less than **100mΩ** (initial), ensuring minimal signal loss. * **Insulation Resistance:** Usually **100MΩ min.** at 100V DC. * **Dielectric Strength:** Capable of withstanding **AC 100V - 250V** for one minute without breakdown. --- ### 3. Mechanical & Environmental Properties The reliability of the WJM-1B0-R/Q is measured by its physical durability. * **Operating Force:** Usually very light, ranging from **35gf to 70gf** (grams-force). * **Operating Life:** Designed for high longevity, typically rated for **50,000 to 100,000 cycles**. * **Temperature Range:** Standard operating range is **-20°C to +70°C**. --- ### 4. Typical Applications Because of its small footprint and precise actuation, this part is commonly found in: 1. **Optical Disc Drives:** Detecting the position of the tray or the presence of a disc. 2. **Smart Home Devices:** Door/window sensors or security tamper switches. 3. **Consumer Electronics:** Power toggles in cameras, handheld gaming consoles, or wearable tech. 4. **Automotive:** Detecting seatbelt engagement or glove box closure. --- ### 5. Sample Circuit Integration In a digital circuit, this switch is often used with a pull-up resistor to provide a logic signal to a Microcontroller (MCU). ```cpp // Logic Example for MCU if (digitalRead(WJM_SWITCH_PIN) == LOW) { // Switch is triggered executeAction(); } ``` ---