Recently, the charging head network disassembled the latest 20W PD fast charge produced by Apple. During the disassembly, it was found that the new batch of 20W PD chargers used two Aihua capacitors inside, one of which was a high-voltage filter electrolytic capacitor of HS small volume high surge current series, with a withstand voltage of 400V and a capacity of 15 μ F. The service life is 5000 hours at 105 ℃. The other output filter solid capacitor is a new PR conductive polymer aluminum solid capacitor, which is a customized product with a withstand voltage of 12V and a capacity of 560 μ F. The service life is 5000 hours at 105 ℃.
Apple 20W charger and 18W charger continue the same appearance design, the only difference is that the output power is different, from 9V2A, 18W output to 9V2.22A, 20W output.
Apple 20W charger internal structure.
Close up of AIHUA HS series 400V high-voltage electrolytic capacitor, withstand voltage 400V capacity 15 μ F. The size is 10 * 16mm.
Aihua HS series small volume high-voltage electrolytic capacitors with high ripple current are suitable for switching power supply applications and are widely used in mobile phone chargers.
Aihua HS series small volume high-voltage electrolytic capacitor specification table, 160-450V withstand voltage, 1-330 μ F capacity, the table is for model selection reference.
AIWA PR series solid state capacitors used in Apple chargers are customized models, with a withstand voltage of 12V and a capacity of 560 μ F. It is specially customized for 9V output voltage, and the size is 6.2 * 11.6mm.
Aihua PR series conductive polymer aluminum solid state capacitor is a new product, which supports the operating temperature from minus 55 to 105 ℃, and has a working life of 5000 hours at 105 ℃. It has the advantages of low ESR, anti ripple current shock, and is suitable for power adapter output filtering.
Aihua PR series conductive polymer aluminum solid capacitance specification table, covering 2.5-35V working voltage, 47-1500 μ F capacity, the table is for model selection reference.
Summary of charging head network
Through the disassembly of the new batch of Apple 20W chargers, the charging head network found that the quality of Aihua capacitor has been recognized by Apple and competed with traditional Japanese brands. Apple's original chargers pursue high quality, and almost all of them use Japanese capacitors. Aihua electrolytic capacitors and solid capacitors have been introduced into Apple's supply chain, which shows that the quality of Aihua capacitors has reached or exceeded the Japanese capacitor level and become a new supplier.
It is worth mentioning that Aihua capacitor has been used by many domestic mobile phone original chargers, and its quality has been widely verified in the market for a long time. Small size and long life capacitor, which is in line with the current pursuit of small size and high power of mobile phone fast charger, has become a new favorite in the market.