QV1206H系列(lie)貼片(pian)壓敏電(dian)阻介紹(shao):
氧化鋅(xin)壓敏電阻(zu)是(shi)一種以氧化鋅(xin)為主體、添加(jia)多種金屬氧化物為添加(jia)劑、經過空氣(qi)中高溫燒結而制成的多晶半導體陶瓷元(yuan)件。壓敏
電阻是一種限壓(ya)(ya)型保護器(qi)件。壓(ya)(ya)敏電(dian)(dian)(dian)阻和被保護電(dian)(dian)(dian)路元件并聯在電(dian)(dian)(dian)路中,當(dang)電(dian)(dian)(dian)路中出(chu)現雷電(dian)(dian)(dian)過(guo)電(dian)(dian)(dian)壓(ya)(ya)、靜電(dian)(dian)(dian)過(guo)電(dian)(dian)(dian)壓(ya)(ya)或(huo)瞬態(tai)操作過(guo)電(dian)(dian)(dian)壓(ya)(ya)
時,利用壓敏(min)電(dian)阻的非線性(xing)特性(xing),壓敏(min)電(dian)阻會以納秒級時(shi)間的響(xiang)應(ying)速(su)度將兩端電(dian)壓迅速(su)下降鉗(qian)位到一個相對固(gu)定的安(an)全(quan)電(dian)壓值,從
而避免被保護電路(lu)元件遭受過電壓(ya)的沖(chong)擊而損壞。
當施加(jia)(jia)于壓(ya)(ya)(ya)敏(min)電(dian)(dian)阻(zu)(zu)(zu)器(qi)兩端(duan)電(dian)(dian)壓(ya)(ya)(ya)小于其(qi)壓(ya)(ya)(ya)敏(min)電(dian)(dian)壓(ya)(ya)(ya),壓(ya)(ya)(ya)敏(min)電(dian)(dian)阻(zu)(zu)(zu)器(qi)相當于10MΩ以上絕緣電(dian)(dian)阻(zu)(zu)(zu);當在壓(ya)(ya)(ya)敏(min)電(dian)(dian)阻(zu)(zu)(zu)器(qi)兩端(duan)施加(jia)(jia)大于壓(ya)(ya)(ya)敏(min)電(dian)(dian)壓(ya)(ya)(ya)的過(guo)
電(dian)壓時,壓敏電阻(zu)(zu)器的電阻(zu)(zu)急(ji)劇下降呈現低(di)阻(zu)(zu)態(tai),從而把電荷快速(su)導走,有效地保護(hu)了電路中的其它元器件不致(zhi)過(guo)壓而損壞。
多層片(pian)式(shi)壓敏電(dian)(dian)阻是(shi)貼(tie)片(pian)封裝的壓敏電(dian)(dian)阻器,采用多層獨石結構,具備寄生電(dian)(dian)感小(xiao)、體積小(xiao)、SMT效率高(gao)(gao)、響應時間短(duan)、工作溫度高(gao)(gao)、
保護能力強的優勢(shi)。恭(gong)成科(ke)技QV****H系列貼(tie)片(pian)壓敏電阻應用于100V以內(nei)低(di)(di)電壓電路,包括DC電源和低(di)(di)頻信號線進(jin)行雷(lei)擊、浪(lang)涌防護,
吸收并衰(shuai)減脈沖(chong)能量(liang),可以(yi)吸收線路內部產(chan)(chan)生的(de)(de)操作過電(dian)壓(ya)(整流、逆變換、變壓(ya)器產(chan)(chan)生的(de)(de)電(dian)磁脈沖(chong)和(he)線路浪涌)及(ji)衰(shuai)減后的(de)(de)雷電(dian)感
應(ying)過電壓,用作(zuo)二級防護(可代(dai)替SMAJ/SMBJ的TVS),同時部分應(ying)用于(yu)手機、LCD-TV/STB/電腦等的通信接(jie)口進行(xing)ESD靜電防護,替代(dai)
TVS使用。
QV1206H系列貼片壓敏電阻特點:
1) SMD小型貼片(pian),節省空間(jian),方便生產;
2) 響應時間為ns級,響應速度滿足各(ge)種(zhong)電路保護要求;
3) 高浪涌(yong)抑制,同體(ti)積(ji)浪涌(yong)能力遠大于(yu)TVS;
4) 高溫性能穩定,125℃不(bu)降額(e);
5) 低的漏(lou)電流IL<10μA;
6) 雙(shuang)向無極性保(bao)護,鉗位電壓低;
7) 優(you)于UL94V-0可燃性(xing)等級;
8) 符(fu)合(he)RoHS環保標準
QV1206H系列(lie)貼(tie)片(pian)壓敏電阻(zu)應用范圍(wei):
1) 汽(qi)車電子應(ying)用:汽(qi)車的(de)控(kong)制(zhi)(zhi)單(dan)元(yuan)、電液制(zhi)(zhi)動(dong)、ABS / ESP、天窗、車窗控(kong)制(zhi)(zhi)等負載(zai)突降保(bao)護和迅速(su)啟動(dong)保(bao)護;
2) 工(gong)業儀表(biao)、控制與測量設備、安防攝(she)像頭、電子電度表(biao)控制板;
3) 5G通訊基站、網通設備、網絡(luo)產品接口、漏電保護(hu)器控制板(ban);
4) 視頻(pin)和音(yin)頻(pin)線I / O端口、高速數據線(如HDMI、USB 3.0、IEEE 1394接口、射頻(pin)天線、射頻(pin)模塊(kuai))的(de)ESD保護(hu);
5) IEC 61000-4-5的浪涌保護(hu),IEC 61000-4-4的EFT保護(hu),ESD保護(hu)符合IEC 61000-4-2(4級(ji))
QV1206H系列(lie)貼片壓敏電阻性能參數:
1) 結(jie)構與尺寸;
類型(xing) | L(mm) | W(mm) | T(mm) | a(mm) |
1206 | 3.2±0.2 | 1.6±0.2 | 1.2 Max. | 0.50±0.25 |
部分 | ① | ② | ③ |
組成 | 片式(shi)壓敏電阻用 ZnO半導(dao)體陶瓷 | 內電(dian)極 (Ag 或 Ag-Pd) | 端電極(ji) (Ag/Ni/Sn 三(san)層) |
2) 電性能參數:
型號 Part No. | 最大工作電(dian)壓(ya) Max. Working Voltage | 壓敏電壓 Varistor Voltage @1mA DC | 最(zui)大限位電壓 Max. Clamping Voltage (8/20μs) | 峰值電流 Peak Current (8/20μs) | 能量(liang)(liang)耐量(liang)(liang) Energy (10/1000μs) | |||
VDC(V) | VAC(V) | VB(V) | ΔVB | Vc(V) | Ic(A) | Ip(A) | WT (J) | |
QV1206H090LT | 9 | 7 | 13 | ± 15% | 24 | 1 | 200 | 0.5 |
QV1206H120LT | 12 | 9 | 18 | ± 15% | 30 | 1 | 200 | 0.5 |
QV1206H140KT | 14 | 11 | 20 | ± 10% | 34 | 1 | 200 | 0.5 |
QV1206H180KT | 18 | 14 | 25 | ± 10% | 42 | 1 | 200 | 0.5 |
QV1206H220KT | 22 | 17 | 30 | ± 10% | 50 | 1 | 200 | 0.5 |
QV1206H260KT | 26 | 20 | 36 | ± 10% | 60 | 1 | 200 | 0.6 |
QV1206H300KT | 30 | 25 | 41 | ± 10% | 70 | 1 | 200 | 0.6 |
QV1206H330KT | 33 | 26 | 44 | ± 10% | 75 | 1 | 200 | 0.6 |
QV1206H380KT | 38 | 30 | 50 | ± 10% | 85 | 1 | 200 | 0.6 |
QV1206H420KT | 42 | 33 | 55 | ± 10% | 95 | 1 | 200 | 0.6 |
QV1206H450KT | 45 | 35 | 59 | ± 10% | 100 | 1 | 200 | 0.6 |
QV1206H480KT | 48 | 37 | 62 | ± 10% | 106 | 1 | 200 | 0.6 |
QV1206H560KT | 56 | 40 | 72 | ± 10% | 118 | 1 | 200 | 0.6 |
QV1206H600KT | 60 | 45 | 76 | ± 10% | 131 | 1 | 200 | 0.6 |
QV1206H650KT | 65 | 50 | 82 | ± 10% | 142 | 1 | 200 | 0.6 |
QV1206H750KT | 75 | 55 | 94 | ± 10% | 160 | 1 | 200 | 0.6 |
QV1206H850KT | 85 | 60 | 100 | ± 10% | 175 | 1 | 200 | 0.6 |
3) 產品包(bao)裝:
類型 | 盤規格(ge) | 載帶 | 每盤(pan)數量(liang)(pcs) |
1206 | 7" | 紙帶(dai) | 3K |