### LC503UHR1-30P-A-00AG2: Technical Overview The **LC503UHR1-30P-A-00AG2** is a high-performance, **Ultra Red (UHR)** light-emitting diode (LED) manufactured by Cree (now part of Wolfspeed/Cree LED). It is designed for applications requiring high visibility and durability. --- ### 1. Key Technical Specifications Below are the primary electronic and physical parameters for this component: | Parameter | Value / Description | | :--- | :--- | | **LED Type** | Through-Hole (Standard 5mm/T-1 3/4) | | **Color** | Ultra Red | | **Dominant Wavelength** | 624 nm (Typical) | | **Luminous Intensity** | 2130 - 12000 mcd (varies by bin) | | **Forward Voltage ($V_F$)** | 2.1V (Typical) / 2.6V (Max) | | **Forward Current ($I_F$)** | 30 mA | | **Viewing Angle** | 30 Degrees | | **Lens Appearance** | Water Clear | | **Material** | AlGaInP (Aluminum Gallium Indium Phosphide) | --- ### 2. Component Composition This part is composed of several critical electronic elements: * **Semiconductor Die:** Uses **AlGaInP** technology, which is highly efficient for producing long-wavelength light (Red/Amber) compared to older GaAsP technologies. * **Anode/Cathode Leads:** Standard long-lead through-hole pins. The longer lead is typically the Anode (+). * **Epoxy Package:** The 5mm "Water Clear" plastic housing acts as a lens to focus the light into a narrow 30-degree beam, increasing the perceived brightness (Intensity). --- ### 3. Electronic Characteristics & Usage To ensure the longevity of the LC503UHR1-30P-A-00AG2, specific electronic considerations must be met: 1. **Current Limiting:** Since this LED has a maximum forward current of 30mA, a resistor is required in series to prevent thermal runaway. * *Formula:* $R = (V_{source} - V_F) / I_F$ 2. **Reverse Voltage ($V_R$):** The maximum reverse voltage is typically 5V. Exceeding this can cause permanent breakdown of the semiconductor junction. 3. **Pulse Operation:** It can handle higher peak currents (up to 100mA) if the duty cycle is kept low (e.g., 1/10 pulse width at 1kHz). --- ### 4. Common Applications * **Outdoor Signs:** Due to the high intensity and water-clear lens. * **Status Indicators:** In industrial equipment where red alerts must be visible in bright environments. * **Variable Message Signs (VMS):** Used in traffic and transportation notification boards. ---