Φ45.3mm Round Aluminum LED PCB | 3x Cree XML2 RTBW - 12V 2.0W MCPCB
Product Description
High-Performance Round Aluminum LED PCB with Cree XML2 Emitters
Product Overview
Engineered for precision lighting applications, this Φ45.3mm Round Aluminum PCB integrates three high-efficiency Cree XLamp XM-L2 (RTBW) emitters. Designed to operate on a 12V DC input, this module is the perfect solution for stage lighting, architectural spots, and specialized illumination requiring compact form factors and superior thermal management.
Unlike standard FR4 boards, our Aluminum Substrate (MCPCB) utilizes a high-performance dielectric layer with a thermal conductivity rate of 2.0 W/m.k. This ensures that the heat generated by the powerful Cree chips is rapidly transferred to the heatsink, maintaining color stability and prolonging the lifespan of the fixture.
Technical Specifications
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Product Title (Title Optimization):
High Power LED Aluminum PCB Φ45.3mm 1.6mm Thickness 2.0W/m.k Thermal Conductivity with 3pcs Cree XML2 5050 RTBW Chip 12V DC Input Custom MCPCB
Product Keywords:
LED Aluminum PCB, MCPCB, Cree XML2 PCB, High Thermal Conductivity Board, Custom LED Module, 12V LED Board, Round Aluminum Substrate.
Product Description:
Overview:
We specialize in high-quality Metal Core Printed Circuit Boards (MCPCB) and LED module assembly. This specific round aluminum substrate is engineered for high-power lighting applications, featuring premium Cree XML2 chips for superior brightness and color rendering. Designed for efficient heat dissipation and long-term stability.
Key Specifications:
Substrate Material: High-quality Aluminum Alloy
Board Dimensions: Φ45.3mm (Round)
Board Thickness: 1.6mm (Standard FR4/MCPCB thickness for rigidity)
Copper Weight: Final Copper 70um (2oz) – Ensures high current carrying capacity and better heat spreading.
Thermal Conductivity: 2.0 W/m.k (High efficiency dielectric layer)
Surface Finish: HASL (Hot Air Solder Leveling) – Lead-free option available.
Solder Mask: White (Single Side) – Maximizes light reflection.
Silkscreen: Black – Clear component marking.
Input Voltage: 12V DC Constant Voltage.
Key Features & Benefits
1. Optimized Thermal Architecture
The combination of a 2.0W dielectric layer and 70um (2oz) copper creates a low thermal resistance path. This is critical for high-power density boards like this one, preventing "thermal runaway" and ensuring the Cree XML2 chips perform at their rated lumens without degradation.
2. Premium Emitter Selection
Equipped with Cree XLamp XM-L2 emitters in a 5050 package. The RTBW configuration allows for versatile lighting effects, capable of producing rich RGB colors or a high-CRI warm/cool white when mixed correctly.
3. Reflective Efficiency
The White Solder Mask is not just for protection; it acts as a reflector. In a single-sided aluminum design, this maximizes the total luminous flux extracted from the package, improving overall system efficacy.
Frequently Asked Questions (FAQ)
Q1: What does "RTBW" stand for in the LED configuration?
A: RTBW stands for Red, True Green, Blue, and White. This indicates that the 5050 package contains four distinct dies, allowing the module to produce full-color RGB effects as well as high-quality white light.
Q2: Why is the copper weight specified as 70um?
A: 70um is equivalent to 2oz of copper. Standard PCBs usually have 1oz (35um). We use 2oz copper to handle the higher current required by three Cree XML2 chips and to help spread the heat laterally across the board before it transfers down through the aluminum substrate.
Q3: Is this board compatible with standard 12V LED drivers?
A: Yes, the circuit is designed for a 12V DC Constant Voltage input. However, please ensure your driver has sufficient amperage capacity to support the total wattage of the three XML2 chips at full brightness.
Q4: Can you customize the size or layout of this PCB?
A: Absolutely. We specialize in OEM/ODM services. While Φ45.3mm is a standard size for certain fixtures, we can adjust the diameter, hole positions, and circuit layout to fit your specific mechanical enclosure requirements.
Q5: What is the advantage of using Aluminum over FR4 for this application?
A: Aluminum acts as a heatsink itself. For high-power LEDs like the Cree XML2, an FR4 board would trap heat, leading to rapid failure. The Aluminum substrate with 2.0W conductivity ensures the junction temperature remains low, preserving the LED's lifespan and color consistency.