QV1206H系(xi)列貼片壓敏電阻(zu)介紹:
氧化(hua)鋅壓敏電(dian)阻(zu)是(shi)一種(zhong)(zhong)以氧化(hua)鋅為主體(ti)、添(tian)加多(duo)種(zhong)(zhong)金屬(shu)氧化(hua)物為添(tian)加劑(ji)、經過(guo)空(kong)氣中(zhong)高溫燒結而制成的多(duo)晶半導體(ti)陶瓷元件(jian)。壓敏
電(dian)阻是一種(zhong)限壓(ya)型保護(hu)(hu)器件(jian)。壓(ya)敏電(dian)(dian)(dian)阻和被保護(hu)(hu)電(dian)(dian)(dian)路(lu)元(yuan)件(jian)并聯在電(dian)(dian)(dian)路(lu)中,當電(dian)(dian)(dian)路(lu)中出(chu)現雷電(dian)(dian)(dian)過(guo)電(dian)(dian)(dian)壓(ya)、靜電(dian)(dian)(dian)過(guo)電(dian)(dian)(dian)壓(ya)或瞬態操作過(guo)電(dian)(dian)(dian)壓(ya)
時,利用(yong)壓敏電(dian)阻的(de)非線性特性,壓敏電(dian)阻會以納(na)秒級(ji)時間的(de)響應(ying)速度將兩端電(dian)壓迅速下(xia)降(jiang)鉗位(wei)到一個相(xiang)對固定的(de)安全電(dian)壓值,從
而避免被保護電路元件遭受過(guo)電壓的沖擊而(er)損壞(huai)。
當施加(jia)于(yu)壓(ya)(ya)(ya)敏(min)電(dian)(dian)(dian)阻(zu)器(qi)兩(liang)端電(dian)(dian)(dian)壓(ya)(ya)(ya)小于(yu)其壓(ya)(ya)(ya)敏(min)電(dian)(dian)(dian)壓(ya)(ya)(ya),壓(ya)(ya)(ya)敏(min)電(dian)(dian)(dian)阻(zu)器(qi)相當于(yu)10MΩ以上絕緣電(dian)(dian)(dian)阻(zu);當在(zai)壓(ya)(ya)(ya)敏(min)電(dian)(dian)(dian)阻(zu)器(qi)兩(liang)端施加(jia)大于(yu)壓(ya)(ya)(ya)敏(min)電(dian)(dian)(dian)壓(ya)(ya)(ya)的過
電壓時,壓敏電(dian)阻(zu)器(qi)的電(dian)阻(zu)急劇下降呈現低阻(zu)態,從而把電(dian)荷快速導走,有(you)效地保護(hu)了電(dian)路(lu)中(zhong)的其它元器(qi)件不致過壓而損(sun)壞。
多層片式(shi)壓(ya)敏電(dian)阻是貼(tie)片封裝的壓(ya)敏電(dian)阻器,采用(yong)多層獨石結構,具備寄(ji)生電(dian)感小、體(ti)積小、SMT效率高、響應(ying)時(shi)間短、工作溫度高、
保護(hu)能力強(qiang)的優勢(shi)。恭成科技QV****H系列(lie)貼片壓(ya)敏電阻(zu)應用(yong)于100V以(yi)內低電壓(ya)電路,包(bao)括DC電源和低頻信(xin)號線進行雷(lei)擊、浪涌防護(hu),
吸收(shou)并(bing)衰(shuai)(shuai)減脈沖能(neng)量,可以吸收(shou)線路(lu)內部產(chan)生的(de)操作(zuo)過電壓(ya)(整(zheng)流、逆變換、變壓(ya)器產(chan)生的(de)電磁脈沖和(he)線路(lu)浪涌(yong))及(ji)衰(shuai)(shuai)減后(hou)的(de)雷電感(gan)
應過電(dian)壓,用作二級防(fang)護(可代(dai)(dai)替SMAJ/SMBJ的(de)TVS),同(tong)時部(bu)分應用于手(shou)機、LCD-TV/STB/電(dian)腦(nao)等(deng)的(de)通(tong)信接口進行(xing)ESD靜電(dian)防(fang)護,替代(dai)(dai)
TVS使用(yong)。
QV1206H系(xi)列貼(tie)片(pian)壓敏電阻特(te)點:
1) SMD小型貼片,節(jie)省空間(jian),方便生產(chan);
2) 響(xiang)應時間(jian)為ns級,響(xiang)應速度(du)滿足(zu)各種電路(lu)保(bao)護要求(qiu);
3) 高浪涌抑(yi)制,同體積浪涌能力遠大于TVS;
4) 高溫性能(neng)穩(wen)定,125℃不(bu)降額;
5) 低(di)的(de)漏電流IL<10μA;
6) 雙向無極性(xing)保護(hu),鉗位(wei)電壓低(di);
7) 優于UL94V-0可燃性等級;
8) 符合(he)RoHS環保(bao)標(biao)準
QV1206H系列貼片(pian)壓(ya)敏電阻應用范圍:
1) 汽車電(dian)(dian)子應用:汽車的控制單元、電(dian)(dian)液制動、ABS / ESP、天窗、車窗控制等(deng)負載突(tu)降(jiang)保護(hu)和(he)迅速啟動保護(hu);
2) 工業儀表、控制與測量設備、安防攝像頭、電(dian)(dian)子電(dian)(dian)度表控制板;
3) 5G通(tong)訊(xun)基站、網通(tong)設備、網絡產品接口、漏電保護器控制板(ban);
4) 視(shi)頻(pin)和音頻(pin)線I / O端口、高速數據線(如HDMI、USB 3.0、IEEE 1394接口、射(she)頻(pin)天線、射(she)頻(pin)模塊)的(de)ESD保(bao)護;
5) IEC 61000-4-5的浪涌保(bao)護(hu),IEC 61000-4-4的EFT保(bao)護(hu),ESD保(bao)護(hu)符合(he)IEC 61000-4-2(4級)
QV1206H系列貼片壓敏電阻性能參數:
1) 結構(gou)與尺(chi)寸;
類型 | 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(zu)成 | 片式壓(ya)敏(min)電阻用 ZnO半(ban)導體陶瓷 | 內電極 (Ag 或 Ag-Pd) | 端(duan)電(dian)極 (Ag/Ni/Sn 三層) |
2) 電性能參數:
型號(hao) Part No. | 最大工(gong)作(zuo)電(dian)壓 Max. Working Voltage | 壓敏電(dian)壓 Varistor Voltage @1mA DC | 最(zui)大限位電壓 Max. Clamping Voltage (8/20μs) | 峰值電(dian)流 Peak Current (8/20μs) | 能量耐量 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(gui)格 | 載帶 | 每盤數量(pcs) |
1206 | 7" | 紙帶 | 3K |