The **MXPA-A2Z1-R** is a specific part number belonging to the **Luxeon MX** series manufactured by **Lumileds**. It is a high-power, multi-die LED emitter designed for high-flux applications, specifically optimized for street lighting and industrial high-bay fixtures. --- ### 1. Technical Specifications The part number follows a specific nomenclature that defines its performance characteristics: | Feature | Specification | | :--- | :--- | | **Product Family** | Luxeon MX | | **Nominal CCT** | 4000K (Neutral White) | | **Minimum CRI** | 70 | | **Configuration** | 12V (4 chips in series/parallel) | | **Typical Flux** | ~1100 to 1250 Lumens (at 700mA) | | **Thermal Resistance** | 1.25 °C/W | | **Max Drive Current** | 1200 mA | --- ### 2. Physical & Electronic Characteristics The MXPA-A2Z1-R is built on a ceramic substrate with a dome lens. Its electronic architecture is designed for efficiency and thermal management. * **Multi-Die Design:** It utilizes a 4-chip array. In the 12V configuration (like this model), the dies are arranged to balance voltage drop and current density. * **Thermal Management:** The part features a low thermal resistance path, allowing heat to dissipate quickly from the junction to the PCB. * **Forward Voltage ($V_f$):** Typically operates around **11.2V to 12.0V** depending on the drive current and junction temperature. --- ### 3. Footprint and Layout The component uses a standard footprint common for high-power LEDs. If you are designing a PCB for this part, ensure the thermal pad is correctly soldered to a large copper plane or an MCPCB (Metal Core PCB). ```c // Design Tip: Electrical Isolation // The thermal pad of the MXPA-A2Z1-R is electrically neutral, // meaning it is not connected to the Anode or Cathode. // This allows for easier heat-sinking to common chassis. ``` --- ### 4. Common Applications Due to its high lumen output and 4000K color temperature, this part is primarily used in: * **Outdoor Infrastructure:** Street lights and parking lot illumination. * **Industrial Lighting:** High-bay and low-bay factory lighting. * **Specialty Lighting:** High-output architectural spotlights.