扭子开关的分类
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 m? max initial @ 2-4VDC, 100mA Dielectric Strength 1000Vrms min Insulation Resistance > 1,000M? 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) LTD