| No | Part number | Description ( Function ) | Manufacturers | |
| 4 | SM1628 | LED Dedicated drive control circuit LED 驱动控制专用电路 SM1628 地址：深圳市高新技术产业园南区高新南一道国微大厦 5 楼 ADD: Shenzhen High-tech Industrial Park,South Area GaoxinS.Ave.1st ，Guowei Building. 电话 Tel：0755-26991331 传真 Fax：0755-26991336 邮编：518057 电子邮箱Email:sunmoon@ssmec.com 网址：www.chinaasic.com LED 驱动控制专用电路 SM1628 www. |
 Shenzhen |
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| 3 | SM1628 | LED Driver IC GOSTON ELECTRONICS CO.,LTD SM1628 LED 驱动控制芯片v1.5 SM1628 概述 SM1628 是一种带键盘扫描接口的 LED 驱动控制 专用电路，内部集成有 MCU 数字接口、数据锁存器、 LED 驱动、键盘扫描等电路。且在输入端口内置上 拉，可在应用方案中省去外部上拉电阻①。 封装图 特性说明 采用 CMOS 工艺 V |
 SM |
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| 2 | SM1628B | LED drivers control the dedicated circuit LED 驱动控制专用电路 SM1628B 地址：深圳市高新技术产业园南区高新南一道国微大厦 5 楼 ADD: Shenzhen High-tech Industrial Park,South Area GaoxinS.Ave.1st ，Guowei Building. 电话 Tel：0755-26991331 传真 Fax：0755-26991336 邮编：518057 电子邮箱 Email:sunmoon@ssmec.com 网址：www.chinaasic.com LED 驱动控制专用电路 SM1628B |
SM |
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| 1 | SM1628C | Dedicated LED driver control circuit LED 驱动控制专用电路 SM1628 C 地址：深圳市高新技术产业园南区高新南一道国微大厦 5 楼 ADD: Shenzhen High-tech Industrial Park,South Area GaoxinS.Ave.1st ，Guowei Building. 电话 Tel：0755-26991331 传真 Fax：0755-26991336 邮编：518057 电子邮箱 Email:sunmoon@ssmec.com 网址：www.chinaasic.com LED 驱动控制 |
SM |
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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 |
|
| LM317 | This is a popular adjustable voltage regulator. |
 ON Semiconductor |
|
6N137 | LM393 | 2N3906 | 2N2222 | TIP120 | 1N5818 | LM324N | A1015 | SMAJ20CA |
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