QV1210H系(xi)列貼片壓(ya)敏電(dian)阻(zu)介紹(shao):
氧(yang)化鋅壓(ya)敏電(dian)阻是一(yi)種以氧(yang)化鋅為(wei)主體、添(tian)加(jia)多種金(jin)屬氧(yang)化物為(wei)添(tian)加(jia)劑、經(jing)過空氣中高溫燒結而制成的多晶(jing)半(ban)導體陶瓷元件。壓(ya)敏
電阻是一(yi)種限壓型保護器(qi)件。壓敏電(dian)(dian)阻和被(bei)保護電(dian)(dian)路(lu)元件并(bing)聯在電(dian)(dian)路(lu)中,當電(dian)(dian)路(lu)中出現(xian)雷電(dian)(dian)過電(dian)(dian)壓、靜電(dian)(dian)過電(dian)(dian)壓或瞬態操作過電(dian)(dian)壓
時,利用壓(ya)(ya)敏電阻的非(fei)線(xian)性(xing)特性(xing),壓(ya)(ya)敏電阻會以納秒級時間(jian)的響應速(su)(su)度(du)將兩端電壓(ya)(ya)迅速(su)(su)下降鉗(qian)位(wei)到一個相對固(gu)定的安(an)全電壓(ya)(ya)值,從
而避免被保護電路元(yuan)件遭受過電壓的沖(chong)擊而損壞。
當施加于(yu)壓(ya)(ya)(ya)(ya)敏(min)(min)電阻器兩(liang)(liang)端(duan)電壓(ya)(ya)(ya)(ya)小于(yu)其(qi)壓(ya)(ya)(ya)(ya)敏(min)(min)電壓(ya)(ya)(ya)(ya),壓(ya)(ya)(ya)(ya)敏(min)(min)電阻器相當于(yu)10MΩ以上絕緣電阻;當在壓(ya)(ya)(ya)(ya)敏(min)(min)電阻器兩(liang)(liang)端(duan)施加大(da)于(yu)壓(ya)(ya)(ya)(ya)敏(min)(min)電壓(ya)(ya)(ya)(ya)的過
電壓(ya)時,壓(ya)敏電(dian)阻器(qi)的電(dian)阻急劇下降(jiang)呈(cheng)現(xian)低阻態,從而把電(dian)荷(he)快速導走,有效地保護了電(dian)路中的其它元器(qi)件(jian)不致過壓(ya)而損壞。
多(duo)層(ceng)片式壓敏電(dian)(dian)阻是(shi)貼片封裝的壓敏電(dian)(dian)阻器,采用多(duo)層(ceng)獨石(shi)結(jie)構,具備寄生電(dian)(dian)感小、體積小、SMT效率高、響(xiang)應時間短、工作溫度高、
保護(hu)能力強的優勢。恭(gong)成(cheng)科技QV****H系(xi)列貼(tie)片壓敏電(dian)阻應用(yong)于100V以內低電(dian)壓電(dian)路(lu),包括DC電(dian)源和低頻(pin)信號(hao)線(xian)進行雷擊、浪涌(yong)防護(hu),
吸收(shou)并衰(shuai)減(jian)脈沖(chong)能量,可以吸收(shou)線(xian)路內部產生(sheng)的操作過電壓(ya)(整流、逆變(bian)換、變(bian)壓(ya)器產生(sheng)的電磁脈沖(chong)和線(xian)路浪(lang)涌)及衰(shuai)減(jian)后的雷電感
應過電(dian)壓,用作二級防護(可代替SMAJ/SMBJ的TVS),同(tong)時部(bu)分應用于(yu)手(shou)機、LCD-TV/STB/電(dian)腦等(deng)的通信(xin)接口進行ESD靜電(dian)防護,替代
TVS使用。
QV1210H系列貼片(pian)壓敏電阻特點:
1) SMD小型(xing)貼(tie)片,節(jie)省(sheng)空間,方便(bian)生產;
2) 響(xiang)應時間為ns級(ji),響(xiang)應速(su)度(du)滿足各種(zhong)電路保護要(yao)求;
3) 高(gao)浪涌(yong)抑制,同體積浪涌(yong)能(neng)力遠(yuan)大于(yu)TVS;
4) 高溫性能(neng)穩(wen)定(ding),125℃不降(jiang)額;
5) 低的漏電流(liu)IL<10μA;
6) 雙向無極性保護,鉗位電(dian)壓(ya)低(di);
7) 優于(yu)UL94V-0可燃性(xing)等級(ji);
8) 符(fu)合RoHS環保標準
QV1210H系列(lie)貼片壓(ya)敏電阻應用范(fan)圍:
1) 汽(qi)車(che)(che)(che)電(dian)子應用:汽(qi)車(che)(che)(che)的控(kong)制(zhi)單元、電(dian)液(ye)制(zhi)動(dong)、ABS / ESP、天(tian)窗、車(che)(che)(che)窗控(kong)制(zhi)等負載突降保護和迅(xun)速啟動(dong)保護;
2) 工(gong)業儀表、控(kong)制與測(ce)量設(she)備、安防(fang)攝像(xiang)頭(tou)、電子電度表控(kong)制板;
3) 5G通(tong)訊基(ji)站(zhan)、網通(tong)設備、網絡產品接口、漏電保護(hu)器控制板;
4) 視(shi)頻(pin)和音(yin)頻(pin)線I / O端口(kou)(kou)、高(gao)速數據線(如HDMI、USB 3.0、IEEE 1394接口(kou)(kou)、射(she)頻(pin)天線、射(she)頻(pin)模塊)的ESD保護;
5) IEC 61000-4-5的(de)浪涌保護,IEC 61000-4-4的(de)EFT保護,ESD保護符合IEC 61000-4-2(4級)
QV1210H系列貼片壓(ya)敏電(dian)阻(zu)性能參數:
1) 結構與尺寸;
類型(xing) | 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(zu)成 | 片式壓敏(min)電阻用(yong) ZnO半(ban)導體陶瓷 | 內電(dian)極(ji) (Ag 或(huo) Ag-Pd) | 端電極 (Ag/Ni/Sn 三層) |
2) 電性能參(can)數:
型(xing)號 Part No. | 最大工作電壓 Max. Working Voltage | 壓(ya)敏電壓(ya) Varistor Voltage @1mA DC | 最大(da)限位電壓 Max. Clamping Voltage (8/20μs) | 峰(feng)值電流(liu) Peak Current (8/20μs) | 能量(liang)耐量(liang) 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) 產品(pin)包裝:
類(lei)型 | 盤規格(ge) | 載帶 | 每(mei)盤數量(pcs) |
1210 | 7" | 紙帶 | 3K |