QV0201~0603E系列ESD靜電防護貼片壓敏(min)電阻介紹:
氧化鋅(xin)(xin)壓敏(min)(min)電阻是(shi)一(yi)種(zhong)以氧化鋅(xin)(xin)為主體、添加多種(zhong)金屬氧化物為添加劑(ji)、經(jing)過空氣(qi)中(zhong)高溫燒結而制成的多晶半導(dao)體陶(tao)瓷元件。壓敏(min)(min)
電(dian)阻是(shi)一種限壓(ya)(ya)型保(bao)護器件。壓(ya)(ya)敏電(dian)(dian)阻和被保(bao)護電(dian)(dian)路元件并聯在電(dian)(dian)路中,當(dang)電(dian)(dian)路中出現雷電(dian)(dian)過(guo)電(dian)(dian)壓(ya)(ya)、靜電(dian)(dian)過(guo)電(dian)(dian)壓(ya)(ya)或瞬態(tai)操作過(guo)電(dian)(dian)壓(ya)(ya)
時,利(li)用壓(ya)(ya)敏電(dian)阻的非線性特(te)性,壓(ya)(ya)敏電(dian)阻會(hui)以納秒級(ji)時間(jian)的響應速度將兩端電(dian)壓(ya)(ya)迅速下(xia)降鉗位到一個(ge)相對(dui)固定的安(an)全電(dian)壓(ya)(ya)值,從(cong)
而(er)避免(mian)被保(bao)護電(dian)(dian)路(lu)元件遭受過電(dian)(dian)壓的沖擊而(er)損(sun)壞。
當(dang)(dang)施加(jia)于(yu)壓(ya)敏(min)(min)電(dian)(dian)阻器兩端電(dian)(dian)壓(ya)小于(yu)其壓(ya)敏(min)(min)電(dian)(dian)壓(ya),壓(ya)敏(min)(min)電(dian)(dian)阻器相當(dang)(dang)于(yu)10MΩ以(yi)上絕緣電(dian)(dian)阻;當(dang)(dang)在壓(ya)敏(min)(min)電(dian)(dian)阻器兩端施加(jia)大于(yu)壓(ya)敏(min)(min)電(dian)(dian)壓(ya)的過
電壓時,壓敏電(dian)阻器(qi)的電(dian)阻急劇(ju)下降呈現低(di)阻態,從而(er)把電(dian)荷快速導走,有效地保護了(le)電(dian)路中的其(qi)它元器(qi)件不(bu)致過壓而(er)損(sun)壞。


QV0201~0603E系列ESD靜電防護貼片壓敏電(dian)阻特(te)點:
1) SMD小型貼片,節省空間,方便生產;
2) 響應時間(jian)為ns級,響應速度滿足各(ge)種電(dian)路(lu)保護要求(qiu);
3) 雙向無(wu)極性保(bao)護,鉗位電壓低;
4) 優秀的可(ke)焊性(Ni,Sn鍍層);
5) 符(fu)合RoHS環保標準(zhun);
QV0201~0603E系列ESD靜電防(fang)護貼片壓敏(min)電阻應用范圍:
1) IC和晶體管的瞬(shun)態電(dian)壓保(bao)護,用(yong)于移動通信(xin)、計(ji)算機/ EDP、LCD模塊、手持/便攜式設備(bei)、PDA等;
2) 視頻(pin)(pin)和音頻(pin)(pin)線I / O端口(kou)(kou)、高速數據(ju)線(如HDMI、USB 3.0、IEEE 1394接(jie)口(kou)(kou)、射(she)頻(pin)(pin)天(tian)線、射(she)頻(pin)(pin)模(mo)塊)的ESD保護(hu);
3) ESD保(bao)護符(fu)合IEC 61000-4-2(4級)
QV0201~0603E系列ESD靜(jing)電(dian)防護貼(tie)片壓敏電阻產品參(can)數:
類別 | 尺寸(cun) L×W×T(mm) | 最大工(gong)作(zuo)電壓 VDC(V) | 電容量 Cp(pF) | 最(zui)大浪涌電(dian)流 @8/20μs(A) |
QV0201*E | 0.60×0.30×0.30 | 5.5~9 | 0.1~80 | 1~10 |
QV0402*E | 1.00×0.50×0.50 | 5.5~30 | 0.1~230 | 1~20 |
QV0603*E | 1.60×0.80×0.80 | 5.5~30 | 0.1~820 | 1~30 |