What is the difference between PPA, PCT and EMC LED brackets?
The main differences are as follows:
1.The materials of the three brackets are different, and the structure and production process are also different. Among them, PPA is an injection molding process; the PCT material has poor fluidity and injection molding is troublesome and requires traditional stamping technology; the EMC bracket is produced by a mold top process.
2. PPA and PCT are thermoplastic materials, and the main material of EMC is epoxy resin, which is a thermosetting material.
The temperature resistance of EMC is higher than that of PPA and PCT. PPA is not as good as EMC and PCT in terms of temperature resistance, yellowing and air tightness, but it has an advantage in price.
3. The heat dissipation is different. PPA, PCT, EMC are enhanced by this. Due to the difference in heat dissipation, the PPA bracket can only achieve 0.1~0.2W, PCT should only be able to achieve 0.8W and EMC can achieve 3W.
EMC bracket has the advantages of high heat resistance, anti-yellowing, high current, high power, high density, UV resistance, and small size. It is currently favored by packaging factories. Many packaging companies have opened EMC production lines. EMC brackets are the development of LED packaging in the later period. trend.
