QV1210H系列貼片壓敏電(dian)阻介紹:
氧化鋅(xin)壓敏(min)電(dian)阻(zu)是(shi)一種以氧化鋅(xin)為主體、添加(jia)多(duo)種金屬氧化物(wu)為添加(jia)劑、經過空氣中高溫燒結而制(zhi)成的多(duo)晶半(ban)導體陶瓷元(yuan)件。壓敏(min)
電阻是(shi)一種(zhong)限(xian)壓型保(bao)(bao)護(hu)器件。壓敏電(dian)阻和被(bei)保(bao)(bao)護(hu)電(dian)路(lu)元件并聯(lian)在電(dian)路(lu)中(zhong),當電(dian)路(lu)中(zhong)出現雷電(dian)過電(dian)壓、靜電(dian)過電(dian)壓或瞬態操作(zuo)過電(dian)壓
時,利用壓(ya)(ya)敏(min)電(dian)(dian)阻的(de)非線性(xing)(xing)特(te)性(xing)(xing),壓(ya)(ya)敏(min)電(dian)(dian)阻會以納(na)秒級時間(jian)的(de)響(xiang)應速度將兩(liang)端電(dian)(dian)壓(ya)(ya)迅速下降鉗位到(dao)一個(ge)相對(dui)固定的(de)安全電(dian)(dian)壓(ya)(ya)值(zhi),從
而避免被保(bao)護(hu)電路(lu)元(yuan)件遭(zao)受過(guo)電壓的沖擊而損壞。
當(dang)施加于(yu)壓(ya)(ya)(ya)(ya)敏(min)電(dian)(dian)阻器(qi)(qi)兩(liang)端(duan)電(dian)(dian)壓(ya)(ya)(ya)(ya)小于(yu)其壓(ya)(ya)(ya)(ya)敏(min)電(dian)(dian)壓(ya)(ya)(ya)(ya),壓(ya)(ya)(ya)(ya)敏(min)電(dian)(dian)阻器(qi)(qi)相當(dang)于(yu)10MΩ以(yi)上絕緣電(dian)(dian)阻;當(dang)在壓(ya)(ya)(ya)(ya)敏(min)電(dian)(dian)阻器(qi)(qi)兩(liang)端(duan)施加大于(yu)壓(ya)(ya)(ya)(ya)敏(min)電(dian)(dian)壓(ya)(ya)(ya)(ya)的過(guo)
電壓時,壓敏電(dian)阻(zu)(zu)器的電(dian)阻(zu)(zu)急劇下(xia)降呈現低(di)阻(zu)(zu)態,從而(er)把電(dian)荷快速導走,有效地保護了(le)電(dian)路中(zhong)的其它(ta)元器件不致過壓而(er)損壞。
多層片式壓敏電(dian)阻是貼片封(feng)裝的壓敏電(dian)阻器,采用多層獨石(shi)結(jie)構(gou),具備(bei)寄生(sheng)電(dian)感小(xiao)、體積小(xiao)、SMT效率高(gao)、響應時間短(duan)、工作溫度高(gao)、
保護能力強的優勢。恭成科技QV****H系(xi)列貼片壓敏(min)電(dian)阻應用于100V以內低(di)電(dian)壓電(dian)路(lu),包(bao)括DC電(dian)源和低(di)頻信號線(xian)進行(xing)雷擊、浪(lang)涌防護,
吸(xi)(xi)收并衰減脈沖(chong)能量(liang),可以吸(xi)(xi)收線路(lu)內部產生(sheng)的操作過電(dian)壓(ya)(整流(liu)、逆(ni)變換(huan)、變壓(ya)器產生(sheng)的電(dian)磁脈沖(chong)和線路(lu)浪(lang)涌)及(ji)衰減后(hou)的雷(lei)電(dian)感(gan)
應過(guo)電壓,用作二級(ji)防(fang)護(hu)(可(ke)代替SMAJ/SMBJ的(de)TVS),同時部(bu)分應用于手機(ji)、LCD-TV/STB/電腦等的(de)通(tong)信接口進行ESD靜電防(fang)護(hu),替代
TVS使用(yong)。
QV1210H系列(lie)貼片(pian)壓敏(min)電阻特點:
1) SMD小型貼片,節(jie)省空間,方便(bian)生產;
2) 響應時間為ns級,響應速度滿足各(ge)種電(dian)路(lu)保(bao)護要求;
3) 高浪涌抑制,同(tong)體積浪涌能力(li)遠大于TVS;
4) 高(gao)溫性(xing)能穩定(ding),125℃不降(jiang)額(e);
5) 低的漏電(dian)流IL<10μA;
6) 雙向無極性保護(hu),鉗位(wei)電(dian)壓低(di);
7) 優于UL94V-0可燃性(xing)等級;
8) 符(fu)合RoHS環保標(biao)準(zhun)
QV1210H系列貼片(pian)壓敏電阻(zu)應用范圍(wei):
1) 汽車(che)(che)電(dian)子應用:汽車(che)(che)的控制單(dan)元、電(dian)液制動、ABS / ESP、天窗、車(che)(che)窗控制等(deng)負(fu)載突降保(bao)護(hu)和迅速啟動保(bao)護(hu);
2) 工業儀表(biao)、控制與(yu)測(ce)量設備、安防攝像頭、電(dian)(dian)子(zi)電(dian)(dian)度表(biao)控制板(ban);
3) 5G通訊(xun)基站、網(wang)通設備、網(wang)絡產品接(jie)口、漏(lou)電保護器控(kong)制板(ban);
4) 視頻(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ESD保護;
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(fu)合IEC 61000-4-2(4級)
QV1210H系列貼片(pian)壓敏(min)電(dian)阻性能參數:
1) 結構與尺寸(cun);
類型 | L(mm) | W(mm) | T(mm) | a(mm) |
1210 | 3.2±0.3 | 2.5±0.25 | 1.5 Max. | 0.50±0.25 |
部分 | ① | ② | ③ |
組成(cheng) | 片式(shi)壓敏電阻(zu)用 ZnO半導體(ti)陶瓷(ci) | 內(nei)電極 (Ag 或 Ag-Pd) | 端電極 (Ag/Ni/Sn 三層) |
2) 電性能參數(shu):
型(xing)號 Part No. | 最大(da)工作電壓(ya) Max. Working Voltage | 壓敏電壓 Varistor Voltage @1mA DC | 最大限位(wei)電壓 Max. Clamping Voltage (8/20μs) | 峰(feng)值(zhi)電流 Peak Current (8/20μs) | 能量耐(nai)量 Energy (10/1000μs) | |||
VDC(V) | VAC(V) | VB(V) | ΔVB | Vc(V) | Ic(A) | Ip(A) | WT (J) | |
QV1210H090LT | 9 | 7 | 13 | ± 15% | 24 | 2.5 | 400 | 1.5 |
QV1210H120LT | 12 | 9 | 18 | ± 15% | 30 | 2.5 | 400 | 1.5 |
QV1210H140KT | 14 | 11 | 20 | ± 10% | 34 | 2.5 | 400 | 1.5 |
QV1210H180KT | 18 | 14 | 25 | ± 10% | 42 | 2.5 | 400 | 1.5 |
QV1210H220KT | 22 | 17 | 30 | ± 10% | 50 | 2.5 | 400 | 1.5 |
QV1210H260KT | 26 | 20 | 36 | ± 10% | 60 | 2.5 | 400 | 1.5 |
QV1210H300KT | 30 | 25 | 41 | ± 10% | 70 | 2.5 | 400 | 1.5 |
QV1210H330KT | 33 | 26 | 44 | ± 10% | 75 | 2.5 | 400 | 1.5 |
QV1210H380KT | 38 | 30 | 50 | ± 10% | 85 | 2.5 | 400 | 1.5 |
QV1210H420KT | 42 | 33 | 55 | ± 10% | 95 | 2.5 | 400 | 1.5 |
QV1210H450KT | 45 | 35 | 59 | ± 10% | 100 | 2.5 | 400 | 1.5 |
QV1210H480KT | 48 | 37 | 62 | ± 10% | 106 | 2.5 | 400 | 1.5 |
QV1210H560KT | 56 | 40 | 72 | ± 10% | 118 | 2.5 | 400 | 1.5 |
QV1210H600KT | 60 | 45 | 76 | ± 10% | 131 | 2.5 | 400 | 1.5 |
QV1210H650KT | 65 | 50 | 82 | ± 10% | 142 | 2.5 | 400 | 1.5 |
QV1210H750KT | 75 | 55 | 94 | ± 10% | 160 | 2.5 | 400 | 1.5 |
QV1210H850KT | 85 | 60 | 100 | ± 10% | 175 | 2.5 | 400 | 1.5 |
3) 產(chan)品包裝:
類型 | 盤規格 | 載帶 | 每盤數量(pcs) |
1210 | 7" | 紙帶 | 3K |