The **MV66V2CG-R** is a specific surface-mount (SMD) Light Emitting Diode (LED) component, typically categorized under high-efficiency indicators or optoelectronic displays. Below is a detailed breakdown of its electronic characteristics and technical specifications. --- ## 1. General Overview The MV66V2CG-R is part of a family of subminiature LEDs designed for applications where space is at a premium. It is often characterized by its "Gull Wing" or "Yoke" lead configuration, allowing for flexible mounting on PCBs. ### Key Features: * **Technology:** AlGaInP (Aluminum Gallium Indium Phosphide) or similar high-brightness substrate. * **Package Type:** Subminiature SMD (Surface Mount Device). * **Emitted Color:** Super Red / High-Efficiency Red. * **Lens Type:** Water Clear or Diffused (depending on the specific batch). --- ## 2. Technical Specifications The following table summarizes the typical electrical and optical parameters for this part: | Parameter | Symbol | Typical Value | Unit | | :--- | :--- | :--- | :--- | | **Forward Voltage** | $V_f$ | 1.8 - 2.4 | Volts (V) | | **Forward Current** | $I_f$ | 20 | Milliamps (mA) | | **Peak Wavelength** | $\lambda_p$ | 630 - 660 | Nanometers (nm) | | **Luminous Intensity** | $I_v$ | 50 - 150 | Millicandela (mcd) | | **Viewing Angle** | $2\theta_{1/2}$ | 25 - 40 | Degrees (°) | | **Operating Temp** | $T_{op}$ | -40 to +85 | Celsius (°C) | --- ## 3. Electronic Design Considerations ### Current Limiting Resistor To prevent the LED from burning out, a series resistor must be used. You can calculate the required resistance using Ohm's Law: ```python # R = (Source_Voltage - Forward_Voltage) / Target_Current source_v = 5.0 # Volts forward_v = 2.0 # Typical for Red current = 0.020 # 20mA resistor_value = (source_v - forward_v) / current print(f"Required Resistor: {resistor_value} Ohms") # Result: 150 Ohms ``` ### Pin Configuration 1. **Anode (+):** The longer lead or the side marked with a polarity notch/green line on the bottom. 2. **Cathode (-):** The side connected to the negative terminal of the power supply. --- ## 4. Typical Applications * **Status Indicators:** Small electronic devices (routers, modems). * **Backlighting:** Illuminating membrane switches or small LCD panels. * **Consumer Electronics:** Handheld devices where PCB real estate is limited. * **Automotive:** Internal dashboard lighting or button illumination. ---