The **LA112B-2G-R1-PF** is a specific electronic component, typically categorized as a **Bi-Color LED Indicator** or a specialized **LED lamp assembly** produced by manufacturers like Kingbright or similar optoelectronic firms. Below is a detailed breakdown of its electronic characteristics and specifications. --- ### 1. General Component Overview This part is a dual-chip LED device designed for status indication. The "2G" in the part number usually signifies **Dual Green** or a specific green wavelength, while the "R1" suffix often denotes a specific packaging style or lead orientation. | Feature | Specification | | :--- | :--- | | **Component Type** | LED (Light Emitting Diode) | | **Color** | Green (often Dual-Chip) | | **Lens Type** | Water Clear or Diffused (depending on specific bin) | | **Package Style** | Through-hole / Radial | | **RoHS Status** | PF (Lead-Free / RoHS Compliant) | --- ### 2. Electrical Characteristics (Typical) Electronic components like the LA112B require specific current and voltage parameters to operate without damage. * **Forward Voltage ($V_F$):** Typically ranges from **2.1V to 2.5V** per chip. * **Forward Current ($I_F$):** Standard operating current is **20mA**. * **Peak Forward Current:** Up to **140mA** (for short pulses). * **Reverse Voltage ($V_R$):** Typically **5V** maximum. * **Power Dissipation ($P_D$):** Approximately **62.5mW to 75mW** per chip. --- ### 3. Optoelectronic Properties These parts are defined by their light output quality: 1. **Dominant Wavelength:** Usually around **565nm to 570nm** (Standard Green). 2. **Luminous Intensity:** Measured in millicandela (mcd), typically ranging from **15mcd to 40mcd** at 20mA. 3. **Viewing Angle:** Often between **40° and 60°**, depending on the lens shape (Rectangular vs. Round). --- ### 4. Pin Configuration and Internal Logic The "2G" designation indicates two green LED chips within one housing. This can be configured in two ways: * **Common Anode/Cathode:** Three pins, where one pin is shared. * **Independent Leads:** Four pins, allowing each LED to be controlled separately. * **Bi-polar:** Two pins, where the color/light depends on the direction of the current flow. --- ### 5. Application Areas * **Network Equipment:** Link/Activity indicators for routers and switches. * **Consumer Electronics:** Power status lights (On/Off/Standby). * **Industrial Panels:** Diagnostic indicators for PLC modules.