QV1206H系列貼片(pian)壓敏(min)電阻介紹:
氧化(hua)鋅壓敏電阻是一種(zhong)以氧化(hua)鋅為主體(ti)(ti)、添加多(duo)種(zhong)金(jin)屬(shu)氧化(hua)物為添加劑、經過空氣(qi)中高(gao)溫燒結而制成的多(duo)晶半導體(ti)(ti)陶瓷元件。壓敏
電(dian)阻是一種限壓(ya)型保護器件(jian)(jian)。壓(ya)敏電(dian)(dian)(dian)阻和被保護電(dian)(dian)(dian)路(lu)元(yuan)件(jian)(jian)并聯在電(dian)(dian)(dian)路(lu)中,當(dang)電(dian)(dian)(dian)路(lu)中出現雷電(dian)(dian)(dian)過(guo)(guo)電(dian)(dian)(dian)壓(ya)、靜電(dian)(dian)(dian)過(guo)(guo)電(dian)(dian)(dian)壓(ya)或(huo)瞬(shun)態操(cao)作過(guo)(guo)電(dian)(dian)(dian)壓(ya)
時(shi),利用(yong)壓(ya)(ya)敏(min)電(dian)(dian)(dian)阻(zu)的(de)(de)非線性(xing)特(te)性(xing),壓(ya)(ya)敏(min)電(dian)(dian)(dian)阻(zu)會(hui)以納秒級時(shi)間的(de)(de)響(xiang)應速(su)度將兩端電(dian)(dian)(dian)壓(ya)(ya)迅速(su)下降(jiang)鉗位(wei)到一(yi)個相對固定的(de)(de)安全電(dian)(dian)(dian)壓(ya)(ya)值,從
而避免被保護電(dian)路(lu)元件(jian)遭受過電(dian)壓的沖擊而損壞。
當(dang)(dang)施(shi)加于(yu)壓(ya)(ya)(ya)敏電阻器(qi)(qi)兩端電壓(ya)(ya)(ya)小于(yu)其壓(ya)(ya)(ya)敏電壓(ya)(ya)(ya),壓(ya)(ya)(ya)敏電阻器(qi)(qi)相當(dang)(dang)于(yu)10MΩ以(yi)上絕緣(yuan)電阻;當(dang)(dang)在壓(ya)(ya)(ya)敏電阻器(qi)(qi)兩端施(shi)加大于(yu)壓(ya)(ya)(ya)敏電壓(ya)(ya)(ya)的過
電壓時,壓敏電(dian)(dian)(dian)阻器的電(dian)(dian)(dian)阻急劇下降(jiang)呈現(xian)低阻態,從而(er)把電(dian)(dian)(dian)荷快速導(dao)走,有效地保護了電(dian)(dian)(dian)路中的其它元(yuan)器件不致(zhi)過壓而(er)損壞。
多層(ceng)片(pian)式壓敏電(dian)阻(zu)是貼(tie)片(pian)封裝的壓敏電(dian)阻(zu)器,采用多層(ceng)獨石結構,具備(bei)寄(ji)生電(dian)感小(xiao)、體積小(xiao)、SMT效率高、響(xiang)應(ying)時間短、工作溫度(du)高、
保護能力強的(de)優勢(shi)。恭成科技QV****H系列(lie)貼片壓(ya)(ya)敏(min)電(dian)(dian)阻應用于100V以內低電(dian)(dian)壓(ya)(ya)電(dian)(dian)路,包括DC電(dian)(dian)源(yuan)和(he)低頻信號線(xian)進行雷擊、浪涌防護,
吸收(shou)并(bing)衰減脈沖(chong)能(neng)量,可以(yi)吸收(shou)線路內(nei)部產(chan)生(sheng)的操作(zuo)過(guo)電(dian)壓(ya)(整流(liu)、逆變換、變壓(ya)器產(chan)生(sheng)的電(dian)磁脈沖(chong)和(he)線路浪涌)及衰減后的雷電(dian)感(gan)
應過電壓,用(yong)作二級防護(可代替SMAJ/SMBJ的TVS),同時(shi)部分應用(yong)于手(shou)機、LCD-TV/STB/電腦等(deng)的通信(xin)接口進行(xing)ESD靜(jing)電防護,替代
TVS使用。
QV1206H系列貼片(pian)壓敏電阻特點:
1) SMD小型(xing)貼片,節省空間(jian),方便生產;
2) 響應時間為(wei)ns級,響應速度(du)滿足各種電路保護要求;
3) 高浪(lang)(lang)涌抑制,同體積浪(lang)(lang)涌能力(li)遠大于TVS;
4) 高溫性能(neng)穩定,125℃不降額;
5) 低的漏(lou)電流IL<10μA;
6) 雙向無(wu)極性(xing)保(bao)護(hu),鉗位電壓(ya)低;
7) 優(you)于UL94V-0可(ke)燃性(xing)等級;
8) 符合RoHS環保標準
QV1206H系(xi)列貼(tie)片壓(ya)敏電阻應(ying)用(yong)范圍:
1) 汽(qi)車(che)電子應(ying)用:汽(qi)車(che)的(de)控(kong)(kong)制單元、電液制動(dong)、ABS / ESP、天(tian)窗、車(che)窗控(kong)(kong)制等負載突降(jiang)保(bao)護(hu)和迅速啟動(dong)保(bao)護(hu);
2) 工(gong)業(ye)儀(yi)表(biao)、控制與(yu)測量(liang)設備(bei)、安防攝像頭、電(dian)(dian)子電(dian)(dian)度(du)表(biao)控制板;
3) 5G通(tong)(tong)訊基(ji)站、網(wang)(wang)通(tong)(tong)設備(bei)、網(wang)(wang)絡產(chan)品接口(kou)、漏(lou)電保護器控(kong)制板(ban);
4) 視頻和音頻線(xian)I / O端口(kou)、高速數據線(xian)(如HDMI、USB 3.0、IEEE 1394接口(kou)、射頻天(tian)線(xian)、射頻模塊)的ESD保護;
5) IEC 61000-4-5的(de)浪涌保護(hu),IEC 61000-4-4的(de)EFT保護(hu),ESD保護(hu)符合IEC 61000-4-2(4級(ji))
QV1206H系列貼片壓(ya)敏(min)電阻性能參(can)數:
1) 結構與尺寸;
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 | 片式壓敏電阻用 ZnO半導體陶瓷 | 內電極(ji) (Ag 或(huo) Ag-Pd) | 端(duan)電極 (Ag/Ni/Sn 三層) |
2) 電(dian)性(xing)能參(can)數:
型(xing)號 Part No. | 最大工作電壓 Max. Working Voltage | 壓敏電壓 Varistor Voltage @1mA DC | 最大限位電(dian)壓 Max. Clamping Voltage (8/20μs) | 峰值電流 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) 產品包裝:
類型 | 盤(pan)規格 | 載帶 | 每(mei)盤數量(pcs) |
1206 | 7" | 紙帶 | 3K |