| No | Part number | Description ( Function ) | Manufacturers | |
| 2 | SIC9553 | High-precision non-isolated Buck LED constant current driver chip 深圳深爱半导体股份有限公司 Shenzhen SI Semiconductors Co., LTD. 产品规格书 Product Specification 高精度非隔离降压型 LED 恒流驱动芯片 553 SIC9 SIC95 概述: SIC9553是一款高精度的非隔离降压型LED控制器，适用于85V～265V全电压范围的小功率非隔离 降压型LED照明应用。 SIC9553内置了高精度的采样、补 |
 Si semiconductors |
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| 1 | SIC9553A | High Precision Non-Isolated Buck LED Driver 深圳深爱半导体股份有限公司 Shenzhen SI Semiconductors Co., LTD. High Precision Non-Isolated Buck LED Driver General Description 产品规格书 Product Specification SIC9552A/9553A/9554A/9555A/9556A The SIC9552A/9553A/9554A/9555A/9556A are high precision buck LED drivers. The chips are suitable for 85~265Vac universal input LED lighting applications. The SIC9552A |
 SI Semiconductors |
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List of most widely used semiconductors
| Part Number | Function | Manufacturers | |
| 1N4007 | The 1N4007 is a rectification diode that is designed for high-voltage applications, typically up to 1000V. It has a maximum current rating of 1A and a forward voltage drop of around 0.7V. |
 Vishay |
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| LM317 | This is a popular adjustable voltage regulator. |
 ON Semiconductor |
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| 6N137 | LM393 | 2N3906 | 2N2222 | TIP120 | 1N5818 | LM324N | A1015 | SMAJ20CA | |||