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Basics of Switches
Recently I wrote an article about switches. Before working at DigiKey I had never really thought twice about them. I knew what they did, but that was about it. But over the course of the last year I have spoken with many customers about switches. Some of the calls have been about replacing a switch, while other calls have been about picking a switch to use in a new design. I have learned many things about switches in the process and wanted to take a chance to share some of what I have learned.
NKK Switches' Miniature Toggle Switch
In the article “Switch Tutorial” several concepts were covered. Hopefully the article will shed some light on the intricacies of switches while helping you locate these switches and their accessories. Some of the topics that are covered in the article are:
Circuit
- Difference between poles and throws
- Different types of circuits
- SPST
- SPDT
- DPDT
- Several others
Electrical Considerations
- Maximum ratings
- Voltage
- Current
- Why there are multiple ratings for the same switch
Types of switches
- Pushbutton Switch
- Tactile Switch
- Dipswitch
- Rocker Switch
- Snap Action Limit Switch
- Toggle Switch
- Rotary Switch
- Keylock Switch
Accessories
- What kinds of accessories are typically available
- Where to find these accessories on the DigiKey website
关于此作者
Pat Sagsveen 是 DigiKey 的助理应用工程技术员，负责协助客户寻找更好的利用新技术和新零件的方式来完成项目。他拥有俾斯麦州立大学电子与通信应用科学学士学位，2016 年毕业后即加入 DigiKey。Pat 对放大器特别感兴趣，业余花了很多时间制作和摆弄各种放大器，其中包括他制作的 3 管吉它放大器。
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