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撥動(dòng)開關(guān)分為:小電流撥動(dòng)開關(guān)(圖1),,和大電流撥動(dòng)開關(guān)(圖2),。小電流撥動(dòng)開關(guān)常用在電子玩具,數(shù)碼通訊,。大電流一般用在電器,,機(jī)械等。
撥動(dòng)開關(guān)主要廣泛用于:各種儀器/儀表設(shè)備,,各種電動(dòng)玩具,,傳真機(jī),音響設(shè)備,,醫(yī)療設(shè)備,,美容設(shè)備,等其它電子產(chǎn)品領(lǐng)域,!
簡單的說,撥動(dòng)開關(guān)就是通過撥動(dòng)其執(zhí)行機(jī)構(gòu)(開關(guān)柄),,來接通或斷開電路,。它具有滑塊動(dòng)作靈活、性能穩(wěn)定可靠等特點(diǎn),,廣泛應(yīng)用于電器,、機(jī)械、通訊,、數(shù)字影音,、樓宇自動(dòng)化、電子產(chǎn)品中,。下面來具體介紹一下:
1.大電流密封型撥動(dòng)開關(guān)
它的額定電流高至5A,且采用環(huán)氧樹脂密封,,故為大電流密封型撥動(dòng)開關(guān)。它的端子形式有多種,,觸點(diǎn)材質(zhì)有鍍銀,、金兩種,開關(guān)功能多樣,。所以,,對此細(xì)分種類較多。廣泛應(yīng)用于電器,、機(jī)械中,。如1000系列中1203A1CQEB(單極三位)型號(hào),具體參數(shù)及尺寸如下:
SPECIFICATIONS
Switch Function SPDT
Electrical Ratings 5A @ 120VAC, 28VDC
Electrical Life 30,000 cycles typical
Contact Resistance < 10 mΩmax initial @ 2-4VDC, 100mA
Dielectric Strength 1500Vrms min
Insulation Resistance > 100MΩ min
Operating Temperature -40°C to 85°C
Storage Temperature -40°C to 85°C
2.單側(cè)彈回式表面貼裝型撥動(dòng)開關(guān)
執(zhí)行機(jī)構(gòu)的操作在側(cè)面,,且引腳為貼片式,,故為單側(cè)彈回式表面貼裝型撥動(dòng)開關(guān),。廣泛應(yīng)用于通訊、數(shù)字影音中,。如MS1257型號(hào),,具體參數(shù)及尺寸如下:
SPECIFICATIONS
Switch Function SPDT
Electrical Ratings 300mA @ 6VDC
Electrical Life 10,000 cycles typical
Contact Resistance < 50 mΩinitial
Dielectric Strength 1000Vrms min
Insulation Resistance > 100MΩ min
Operating Temperature -40°C to 85°C
Storage Temperature -40°C to 85°C
3.4P3T直插式撥動(dòng)開關(guān)
觸點(diǎn)形式為4P3T,引腳為直插式,。故為4P3T直插式撥動(dòng)開關(guān),。4P3T決定了它有8對引腳,同時(shí),,還有兩對支架,,起支撐、固定,、接地的作用,。廣泛應(yīng)用于樓宇自動(dòng)化、電子產(chǎn)品中,。如MS4319L5.5型號(hào),,具體參數(shù)及尺寸如下:
SPECIFICATIONS
Switch Function 4P3T
Electrical Ratings 200mA @ 30VDC
Electrical Life 10,000 cycles typical
Contact Resistance < 50 mΩinitial
Actuation Force 250 +/- 100gF
Dielectric Strength 1000Vrms min
Insulation Resistance > 100MΩ min
Operating Temperature -40°C to 85°C
Storage Temperature -40°C to 85°C
4.長執(zhí)行機(jī)構(gòu)頂撥型撥動(dòng)開關(guān)
執(zhí)行機(jī)構(gòu)12mm,且位于開關(guān)頂端,,故為長執(zhí)行機(jī)構(gòu)頂撥型撥動(dòng)開關(guān),。廣泛應(yīng)用于數(shù)字影音、各種儀器/儀表設(shè)備中,。如MS2201L12型號(hào),,具體參數(shù)及尺寸如下:
SPECIFICATIONS
Switch Function DPDT
Electrical Ratings 200mA @ 30VDC
Electrical Life 10,000 cycles typical
Contact Resistance < 50 mΩinitial
Actuation Force 200 +/- 100gF
Actuator Travel 4.0 mm total
Dielectric Strength 1000Vrms min
Insulation Resistance > 100MΩ min
Operating Temperature -40°C to 85°C
Storage Temperature -40°C to 85°C
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福崗路35號(hào)大洋洲科技園3棟3樓