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KSD-PB19-T1U

KSD-PB19-T1U

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产品名称：键盘开关
产品规格
电路：SPST
电流额定值：100mA
额定电压：42VDC 42VAC
绝缘耐压：2000VAC，持续1分钟
接触电阻：最大100mΩ（初始）
绝缘电阻：最小100MΩ
操作寿命：至少2000000次循环
Soldear规格：256℃持续5秒
开启温度：-20°C~+70°C
产品符合：ROHS
品牌：科斯达开关 KSDKG
产地：中国东莞

应用领域：舞台灯光控制设备、视频处理器、矩阵控制器、安防设备、收银设备。

键盘开关是构成计算机键盘的基本元件，主要用于输入文字和控制各种功能。以下是对键盘开关的详细描述：

1. 基本定义
键盘开关是指在键盘中用于感应按压状态的电气元件，当用户按下某个键时，开关会产生电信号。

2. 类型
机械开关：具有独立的弹簧和触点，提供良好的触感和反馈，分为不同的轴体（如青轴、红轴、茶轴等），每种轴体的手感和声音不同。
膜式开关：采用薄膜结构，通常较轻薄，按键感觉相对柔和，但反馈和耐用性不如机械开关。
剪刀脚开关：常用于笔记本电脑的键盘，具有更低的结构高度，按压时提供良好的稳定性。

3. 工作原理
当用户按下某个键时，开关内部的触点闭合，形成电路，从而向计算机发送信号，计算机接收信号后执行相应的操作。

4. 特点
触感与反馈：机械键盘提供明显的触觉反馈，适合打字和游戏；膜键盘相对安静且轻便。
耐用性：机械开关通常具有更长的使用寿命（可达数千万次），膜开关的寿命较短。
整体设计：键盘开关的设计影响键盘的整体高度、重量和样式。

5. 应用
个人计算机：用于办公、游戏、编程等各种场景。
移动设备：如智能手机、平板电脑，使用剪刀脚或膜式开关以降低厚度。
工业控制：一些特定领域的专用键盘，具有耐污、防尘和防水的功能。

6. 选择 Considerations
使用需求：考虑使用场景，选择适合的开关类型（机械或膜式）。
键程：不同开关的按键深度和阻力感不同，对打字体验有影响。
声音：机械开关的声音因轴体不同而有所区别，选择时需考虑噪音环境。

7. 维护
定期清洁键盘，避免灰尘和杂物影响开关性能。
选择合适的清洁剂，避免对开关造成损坏。

键盘开关作为键盘的核心组成部分，其性能和类型直接影响用户的输入体验和使用满意度。

键盘开关的特点可以从多个维度进行分析，例如类型、性能、用户体验等。以下是一些主要特点：

1. 类型多样
机械开关：提供众多不同类型，如青轴（点击声明显，适合打字）、红轴（线性，轻便，适合游戏）、茶轴（介于两者之间）。
膜式开关：结构相对简单，通常较轻薄，成本较低。
剪刀脚开关：多用于笔记本，具有更低的高度和相对良好的稳定性。

2. 触感反馈
触感强烈：机械键盘通常提供明显的触觉反馈，适合打字和游戏。
无声或轻声：膜式和某些剪刀脚开关通常安静，适合在需要保持安静的环境中使用。

3. 耐用性
长寿命：机械开关的使用寿命通常在5000万次以上，而膜开关相对较短，约在100万到1000万次之间。
可靠性：机械开关在多次使用后依然保持良好的性能，适合频繁使用的场合。

4. 键程和按压力
键程：不同类型开关的按键深度各异，适合不同的输入需求。
按压力：机械开关的按压力通常明显，膜开关则较软，适合喜欢轻触反馈的用户。

5. 声音表现
声音差异：机械键盘的声音各有不同，青轴声响较大，红轴安静。用户可以根据使用环境选择合适的开关。

6. 舒适性
人体工程学：良好的设计可以提高输入的舒适度，尤其是长时间使用时，键盘的高度和开关的触感都会影响用户的体验。

7. 美观性
多样化设计：开关的外观可以与键盘整体风格匹配，许多机械开关和键帽设计提供个性化选择。

8. 定制功能
可更换键帽：机械键盘通常支持键帽的更换，用户可以根据个人喜好进行定制。
灯光效果：许多现代键盘支持RGB灯光效果，为用户提供丰富的视觉体验。

9. 维护
易于清洁：机械开关通常可以单独拆卸清洁，而膜式开关通常一体化，清洁难度较大。

10. 应用范围
多场景适用：无论是办公、游戏还是编程，键盘开关的选择可以优化不同场景下的使用体验。

这些特点使得键盘开关在用户的选择中非常重要，影响了输入设备的舒适性、性能和整体体验。


Product Name: Keyboard Switch
Product specifications
Circuit: SPST
Current rating: 100mA
Rated voltage: 42VDC 42VAC
Insulation withstand voltage: 2000VAC, lasting for 1 minute
Contact resistance: maximum 100m Ω (initial)
Insulation resistance: minimum 100M Ω
Operating lifespan: at least 2000000 cycles
Soldeal specification: 256 ℃ for 5 seconds
Opening temperature: -20 ° C~+70 ° C
Product compliance: ROHS
Brand: Coaster Switch KSDKG
Origin: Dongguan, China

Application areas: Stage lighting control equipment, video processors, matrix controllers, security equipment, cash register equipment.

Keyboard switches are the basic components that make up a computer keyboard, mainly used for inputting text and controlling various functions. The following is a detailed description of the keyboard switch:

1. Basic Definition
A keyboard switch refers to an electrical component used in a keyboard to sense the pressing state. When a user presses a key, the switch generates an electrical signal.

2. Type
Mechanical switch: It has independent springs and contacts, providing good touch and feedback, and is divided into different shafts (such as green shaft, red shaft, tea shaft, etc.), each with different touch and sound.
Membrane switch: It adopts a thin film structure, usually thinner and lighter, and the button feel is relatively soft, but the feedback and durability are not as good as mechanical switches.
Scissorfoot switch: commonly used in laptop keyboards, it has a lower structural height and provides good stability when pressed.

3. Working principle
When the user presses a key, the contacts inside the switch close, forming a circuit that sends a signal to the computer. After receiving the signal, the computer performs the corresponding operation.

4. Characteristics
Touch and feedback: The mechanical keyboard provides obvious tactile feedback, suitable for typing and gaming; The membrane keyboard is relatively quiet and lightweight.
Durability: Mechanical switches typically have a longer lifespan (up to tens of millions of times), while membrane switches have a shorter lifespan.
Overall design: The design of keyboard switches affects the overall height, weight, and style of the keyboard.

5. Application
Personal computer: used for various scenarios such as office work, gaming, programming, etc.
Mobile devices, such as smartphones and tablets, use scissor feet or membrane switches to reduce thickness.
Industrial control: Specialized keyboards for certain fields, with features such as stain resistance, dust resistance, and water resistance.

6. Choose Considerations
Usage requirements: Consider the usage scenario and choose the appropriate switch type (mechanical or membrane).
Keystroke: The depth and resistance of different switches have different effects on the typing experience.
Sound: The sound of mechanical switches varies depending on the shaft, and noise environment should be considered when selecting.

7. Maintenance
Regularly clean the keyboard to avoid dust and debris affecting switch performance.
Choose the appropriate cleaning agent to avoid damaging the switch.

As the core component of the keyboard, the performance and type of the keyboard switch directly affect the user's input experience and satisfaction.

The characteristics of keyboard switches can be analyzed from multiple dimensions, such as type, performance, user experience, etc. Here are some main features:

1. Diverse types
Mechanical switches: available in various types, such as green switches (with clear clicking sound, suitable for typing), red switches (linear, lightweight, suitable for gaming), and tea switches (in between).
Membrane switch: The structure is relatively simple, usually thin and lightweight, and the cost is low.
Scissor foot switch: commonly used in laptops, with lower height and relatively good stability.

2. Tactile feedback
Strong tactile sensation: Mechanical keyboards typically provide noticeable tactile feedback, making them suitable for typing and gaming.
Silent or light tone: Membrane and some scissor foot switches are usually quiet and suitable for use in environments that require maintaining quietness.

3. Durability
Long lifespan: The service life of mechanical switches is usually over 50 million cycles, while membrane switches are relatively short, ranging from 1 million to 10 million cycles.
Reliability: Mechanical switches maintain good performance even after multiple uses, making them suitable for frequent use.

4. Key stroke and pressing force
Keystroke: The depth of buttons for different types of switches varies, suitable for different input needs.
Pressing force: The pressing force of mechanical switches is usually significant, while membrane switches are relatively soft and suitable for users who prefer light touch feedback.

5. Sound expression
Sound difference: The sound of mechanical keyboards varies, with the blue axis having a louder sound and the red axis being quieter. Users can choose the appropriate switch based on the usage environment.

6. Comfort
Ergonomics: Good design can improve input comfort, especially when used for a long time. The height of the keyboard and the tactile sensation of the switches can affect the user experience.

7. Aesthetics
Diversified design: The appearance of the switch can match the overall style of the keyboard, and many mechanical switches and keycap designs provide personalized choices.

8. Customized functions
Removable keycaps: Mechanical keyboards typically support the replacement of keycaps, which users can customize according to their personal preferences.
Lighting effects: Many modern keyboards support RGB lighting effects, providing users with a rich visual experience.

9. Maintenance
Easy to clean: Mechanical switches can usually be disassembled and cleaned separately, while membrane switches are usually integrated and difficult to clean.

10. Application scope
Multi scenario applicability: Whether it's office work, gaming, or programming, the selection of keyboard switches can optimize the user experience in different scenarios.

These characteristics make keyboard switches very important in user selection, affecting the comfort, performance, and overall experience of input devices.
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