The **LHK376-R** is an electronic component primarily identified as a **T1 (3mm) Radial Leaded LED**, specifically a "Super-Red" Hyper-Bright LED produced by manufacturers like OSRAM Opto Semiconductors. --- ### 1. Key Technical Specifications The following table highlights the typical electrical and optical characteristics of the LHK376-R: | Parameter | Specification | Unit | | :--- | :--- | :--- | | **Color** | Super-Red (633 nm) | - | | **Package Type** | T1 (3mm) Standard | - | | **Forward Current ($I_F$)** | 30 (max) | mA | | **Forward Voltage ($V_F$)** | 1.8 - 2.4 (typical) | V | | **Luminous Intensity ($I_V$)** | 11.2 - 28.0 | mcd | | **Viewing Angle** | 40 (typical) | degrees | | **Lens Type** | Diffused / Red | - | --- ### 2. Physical and Structural Parts The LHK376-R consists of several internal and external parts essential for its operation: * **LED Chip (Die):** The semiconductor material (typically AlGaInP) that converts electrical energy into red light. * **Epoxy Resin Body:** A 3mm diameter housing that protects the chip and acts as a diffuser to spread the light evenly. * **Anode (+):** The longer lead, which connects to the positive side of the power source. * **Cathode (-):** The shorter lead, usually identified by a flat edge on the base of the epoxy lens. * **Bond Wire:** A microscopic gold wire connecting the semiconductor chip to the lead frame. --- ### 3. Usage and Circuit Application To use the LHK376-R safely in an electronic circuit, a **current-limiting resistor** is required to prevent the LED from burning out. **Calculation Example:** If using a 5V power supply: 1. **Formula:** $R = (V_{supply} - V_{forward}) / I_{target}$ 2. **Values:** $(5V - 2V) / 0.02A = 150 \Omega$ ```cpp // Example: Driving an LHK376-R with an Arduino void setup() { pinMode(13, OUTPUT); // Connect LED to Pin 13 (via 220 ohm resistor) } void loop() { digitalWrite(13, HIGH); // LED ON delay(1000); digitalWrite(13, LOW); // LED OFF delay(1000); } ``` --- ### 4. Common Applications * **Status Indicators:** Power lights on consumer electronics. * **Backlighting:** Illuminating small buttons or LCD panels. * **Optical Signaling:** Used in arrays for simple displays or decorative lighting.