钮子开关是一种手动控制的微型开关，这点与拨码开关相似。大部分钮子开关在交直流电源电路的通断控制中广泛应用，较少应用于几千赫或高达1 兆赫的电路中。下面来具体介绍一下。
1.防溅式球形钮柄钮子开关
面板安装采用‘O’环密封的防溅式，钮柄为球形，故为防溅式球形钮柄钮子开关。它的端子是直插形式，端子底部采用环氧树脂密封。抗腐蚀性强，适用于汽车零部件。
如:ANT系列具体参数及尺寸如下，
SPECIFICATIONS
| Electrical Ratings |
5A @ 120VAC, 28VDC; 2A @ 250VAC See Contact Options |
| Electrical Life |
50,000 cycles typical |
| Contact Resistance |
< 20 mΩ max initial @ 2-4VDC, 100mA |
| Dielectric Strength |
1500Vrms min |
| Insulation Resistance |
> 100MΩ min |
| Operating Temperature Storage Temperature |
-40°C to 85°C -40°C to 85°C |
2.垂直安装直角钮子开关
端子垂直安装及端子引脚为直角，故为垂直安装直角钮子开关。它的触点采用镀金材质，可靠性强。多用于防盗器材，警视系统中。
如：BST系列具体参数及尺寸如下，
SPECIFICATIONS
| Electrical Ratings |
3A @ 120VAC, 28VDC; 1.5A @ 250VAC See contact options |
| Electrical Life |
30,000 cycles typical |
| Contact Resistance |
< 20 mΩ max initial @ 2-4VDC, 100mA |
| Dielectric Strength |
1000Vrms min |
| Insulation Resistance |
> 1,000MΩ min |
| Operating Temperature Storage Temperature |
-40°C to 85°C -40°C to 85°C |
3.双极单联钮子开关
开关同时开断相线和N线，控制一个支路，故为双极单联钮子开关。触点为3PDT形式，多用于多媒体喇叭、音响。
如：AST系列具体参数及尺寸如下，
SPECIFICATIONS
| Electrical Ratings |
5A @ 120VAC, 28VDC; 2A @ 250VAC See Contact Options |
| Electrical Life |
30,000 cycles typical |
| Contact Resistance |
< 20 mΩ max initial @ 2-4VDC, 100mA |
| Dielectric Strength |
1500Vrms min |
| Insulation Resistance |
> 100MΩ min |
| Operating Temperature Storage Temperature |
-40°C to 85°C -40°C to 85°C |
4.标准表面贴装无螺纹钮子开关
端子采用标准的贴装形式，它的套管没有螺纹，称之为标准表面贴装无螺纹钮子开关。触点为单刀双掷，它的电气寿命高达55000次。多用于医疗器材。
如：SST系列具体参数及尺寸如下，
SPECIFICATIONS
| Electrical Ratings |
5A @ 120VAC, 28VDC; 2A @ 250VAC See Contact Options |
| Electrical Life |
55,000 cycles typical |
| Contact Resistance |
≤ 20mΩ initial @ 2-4VDC, 100mA |
| Dielectric Strength |
1500Vrms min |
| Insulation Resistance |
> 100MΩ min |
| Operating Temperature Storage Temperature |
-40°C to 85°C -40°C to 85°C |
5.水平安装直角型钮子开关
相比垂直开关，它只是方向变为了水平，故为水平安装直角型钮子开关。触点为双刀双掷，端子底部采用Epoxy Seal。大多用于电脑周边设备。
如：BNT系列具体参数及尺寸如下，
SPECIFICATIONS
| Electrical Ratings |
3A @ 120VAC, 28VDC; 1A @ 250VAC See Contact Options |
| Electrical Life |
30,000 cycles typical |
| Contact Resistance |
< 20 mΩ max initial @ 2-4VDC, 100mA |
| Dielectric Strength |
1500Vrms min |
| Insulation Resistance |
> 100MΩ min |
| Operating Temperature Storage Temperature |
-40°C to 85°C -40°C to 85°C |
以上分类基于RIVERSUN (HONG KONG) LTD2100433B
