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揭秘:陶瓷氣體放電管與玻璃氣體放電管的區別

更新時間:2019-05-04

所謂氣(qi)(qi)體(ti)放(fang)電(dian)(dian)管,就是壹(yi)種(zhong)常(chang)見的電(dian)(dian)壓擊穿型浪(lang)湧防護器件(jian)(jian),結構部件(jian)(jian)單(dan)壹(yi)。說起氣(qi)(qi)體(ti)放(fang)電(dian)(dian)管,很多(duo)小夥伴們(men)不約而同能說出了(le)陶瓷氣(qi)(qi)體(ti)放(fang)電(dian)(dian)管和(he)玻璃(li)氣(qi)(qi)體(ti)放(fang)電(dian)(dian)管。那(nei)麼(ma),關於這兩者之間的關系(xi),有什麼(ma)共(gong)同點和(he)不同點呢?針對這個話題,陶瓷氣(qi)(qi)體(ti)放(fang)電(dian)(dian)管廠家東沃電(dian)(dian)子(zi),為您娓娓道(dao)來。

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陶瓷氣體放電(dian)管PK玻璃氣體放電(dian)管

氣(qi)體放電(dian)管按照封裝方式,可分為陶瓷氣(qi)體放電(dian)管(GDT)和玻璃氣(qi)體放電(dian)管(SPG)。兩者在(zai)工作(zuo)原理上都是氣(qi)體放電(dian);同時,反(fan)應速度快、絕緣(yuan)電(dian)阻高(gao)、導(dao)通(tong)後電(dian)壓(ya)低、性能穩定(ding)可靠、體積小、壽(shou)命長等是GDT和SPG共有的(de)特(te)性。由於GDT和SPG在(zai)結構上的(de)差異,除(chu)了材質的(de)區別之外,還存在(zai)壹些特(te)性的(de)差異,具(ju)體表現在(zai):

1)通(tong)(tong)流(liu)量:玻璃氣體放(fang)電(dian)管在8/20us波峰值電(dian)流(liu)只有500A、1KA、3KA;陶(tao)瓷氣體放(fang)電(dian)管常用的又5KA、10KA、20KA,甚至達到100KA以上,通(tong)(tong)流(liu)量大。

2)結電(dian)(dian)容(rong):陶瓷氣體放(fang)電(dian)(dian)管的結電(dian)(dian)容(rong)與玻璃氣體放(fang)電(dian)(dian)管相比,要高些;SPG的結電(dian)(dian)容(rong)在0.8pF。

3)響(xiang)應時間(jian):由(you)於SPG內部是由(you)半導體矽集成的(de),所以(yi)在(zai)響(xiang)應時間(jian)方面,SPG的(de)響(xiang)應速度要比GDT短。

4)擊(ji)穿電(dian)壓精(jing)準度:GDT的擊(ji)穿電(dian)壓精(jing)準度要比SPG低。

5)脈(mo)(mo)沖(chong)擊穿(chuan)電(dian)壓:SPG的脈(mo)(mo)沖(chong)擊穿(chuan)電(dian)壓最高(gao)可達到5KV,GDT相比(bi)SPG要低。

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陶瓷氣體放電管(guan)(guan)和(he)玻璃氣體放電管(guan)(guan)哪個(ge)性(xing)能好?

關(guan)於陶瓷(ci)氣(qi)體(ti)(ti)放電(dian)管和(he)玻(bo)璃氣(qi)體(ti)(ti)放電(dian)管這兩種電(dian)路防(fang)護元件選擇的(de)(de)問題,防(fang)雷、防(fang)浪湧(yong)、防(fang)靜電(dian)專家東沃電(dian)子(zi)認為,在(zai)同樣(yang)的(de)(de)脈沖電(dian)壓下,如果(guo)電(dian)流小於3KA的(de)(de)情況下,可以優先使用玻(bo)璃氣(qi)體(ti)(ti)放電(dian)管,更(geng)適(shi)用於在(zai)更(geng)高頻段的(de)(de)天饋系統。如果(guo)電(dian)流在(zai)3KA以上,只能選擇陶瓷(ci)氣(qi)體(ti)(ti)放電(dian)管。

從(cong)壽(shou)命(ming)和性能(neng)上考慮,說實話,陶瓷(ci)氣(qi)(qi)體放(fang)(fang)電(dian)(dian)(dian)(dian)管(guan)優(you)越於(wu)玻璃(li)氣(qi)(qi)體放(fang)(fang)電(dian)(dian)(dian)(dian)管(guan)。信(xin)號(hao)接口的(de)(de)過壓保護(hu)(hu)過程中,需要(yao)采用(yong)(yong)多級(ji)協同式(shi)保護(hu)(hu)電(dian)(dian)(dian)(dian)路,前級(ji)保護(hu)(hu)措施往往采用(yong)(yong)的(de)(de)是陶瓷(ci)氣(qi)(qi)體放(fang)(fang)電(dian)(dian)(dian)(dian)管(guan)進行大通流能(neng)量的(de)(de)泄放(fang)(fang),起到泄放(fang)(fang)雷電(dian)(dian)(dian)(dian)暫態過電(dian)(dian)(dian)(dian)流和限制過電(dian)(dian)(dian)(dian)壓的(de)(de)作用(yong)(yong)。

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陶瓷(ci)氣體放電管,總有壹款適合您

接踵而至的(de)問題來了,采購陶瓷(ci)氣體放電(dian)管,哪家品牌供(gong)(gong)應商(shang)好呢?如何(he)選(xuan)擇(ze)合適(shi)型號的(de)GDT呢?目(mu)前,市面上從事(shi)放電(dian)管的(de)供(gong)(gong)應商(shang)大(da)大(da)小(xiao)小(xiao)不(bu)計其數,質量參差不(bu)齊(qi),更多選(xuan)擇(ze)的(de)背後,帶來的(de)卻是更多的(de)迷茫和(he)不(bu)知(zhi)所措。

柳暗花(hua)明又壹村,東沃電(dian)(dian)(dian)子(zi),壹家(jia)專註(zhu)於電(dian)(dian)(dian)路(lu)保護器件(jian)自主研(yan)發(fa)、生產、銷(xiao)售的(de)市高新技(ji)術企業,在電(dian)(dian)(dian)路(lu)保護器件(jian)的(de)實(shi)(shi)際應用方面(mian)擁(yong)有豐富(fu)的(de)實(shi)(shi)戰經驗,能夠實(shi)(shi)時(shi)地解決客戶的(de)痛點問題,根據電(dian)(dian)(dian)路(lu)解決方案選(xuan)擇合適電(dian)(dian)(dian)路(lu)保護器件(jian),只為客戶的(de)電(dian)(dian)(dian)路(lu)更安(an)全(quan)。東沃電(dian)(dian)(dian)子(zi)研(yan)發(fa)、生產、銷(xiao)售的(de)陶(tao)(tao)瓷(ci)氣(qi)(qi)體放電(dian)(dian)(dian)管(guan)(guan)(guan)(guan)有:貼片陶(tao)(tao)瓷(ci)氣(qi)(qi)體放電(dian)(dian)(dian)管(guan)(guan)(guan)(guan)、開關(guan)陶(tao)(tao)瓷(ci)氣(qi)(qi)體放電(dian)(dian)(dian)管(guan)(guan)(guan)(guan)、直插(cha)(cha)陶(tao)(tao)瓷(ci)氣(qi)(qi)體放電(dian)(dian)(dian)管(guan)(guan)(guan)(guan)三極管(guan)(guan)(guan)(guan)、直插(cha)(cha)陶(tao)(tao)瓷(ci)氣(qi)(qi)體放電(dian)(dian)(dian)管(guan)(guan)(guan)(guan)二極管(guan)(guan)(guan)(guan)。品質卓越、型號齊全(quan)、現(xian)貨庫存、交貨期(qi)短、售後及時(shi)、服務優質,東沃電(dian)(dian)(dian)子(zi),是您的(de)不二之選(xuan)。

欲想了解更多(duo)有關(guan)陶瓷氣體放電(dian)管的(de)知(zhi)識,東沃(wo)電(dian)子FAE工程師,隨時(shi)恭候您的(de)蒞(li)臨!!!

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