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What is a hot-swap PCB? | POE
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What is a hot-swap PCB?

A hot-swap PCB is a specially designed PCB that is able to add and remove components without turning off the power. Common applications are on mechanical keyboards, server systems, or industrial equipment.
Home >Blog >PCB/ PCBA Blog > What is a hot-swap PCB?
What is a hot-swap PCB?
27 December 2024
Views: 39
A hot-swap PCB is a specially designed PCB that is able to add and remove components without turning off the power. Common applications are on mechanical keyboards, server systems, or industrial equipment.

hot-swap PCB

1. How does a hot-swap PCB work?
The key feature of a hot-swap PCB is the ability to make and break connections to a component while the device is powered. To achieve this, hot-swap sockets (Kailh or Mill-Max sockets) are used to house components such as switches and connectors, which allows components to be directly inserted or removed without soldering, making it easy for ordinary users to customize the device.

2. Electrical protection
Hot-swap PCBs include electrical protection mechanisms such as the use of diodes to prevent reverse current flow during insertion or removal. Current-limiting resistors are used to control current surges when components are connected. ESD protection is used to prevent electrostatic discharge that can damage sensitive components.

3. Contact durability
The sockets on hot-swap PCBs are designed to handle frequent insertion and removal cycles without degradation. High-quality materials such as gold-plated contacts are used to ensure durability.

Applications of Hot-Swap PCBs

1. Mechanical Keyboards
One of the most popular applications of hot-swap PCBs is mechanical keyboards. Users can replace switches to customize the typing feel or replace a faulty key position without removing and re-soldering components. It is very useful for hobbyists.

2. Servers and Data Centers
In server environments, hot-swap PCBs can make it easier to replace components such as hard drives and network cards without shutting down the system. It reduces downtime and ensures continuous operation.

3. Industrial Equipment
Hot-swap PCBs are also commonly used in sensors, connectors or control modules in industrial environments, which can achieve rapid maintenance, upgrades, reduce downtime, and improve operational efficiency.

Conclusion
Hot-swap PCBs are an innovative solution that enhances the flexibility of electronic devices, which is of great significance for reducing downtime, hobbyist DIY, etc.
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