QV1206H系列貼片(pian)壓敏電(dian)阻介紹:
氧化(hua)鋅壓(ya)敏(min)電阻是一種(zhong)以氧化(hua)鋅為(wei)主體、添加多(duo)種(zhong)金屬(shu)氧化(hua)物為(wei)添加劑、經過(guo)空氣中高(gao)溫燒結而制成的(de)多(duo)晶半導體陶瓷元件。壓(ya)敏(min)
電阻是(shi)一(yi)種(zhong)限壓(ya)型(xing)保(bao)(bao)護(hu)(hu)器件(jian)(jian)。壓(ya)敏電(dian)(dian)(dian)(dian)阻和被保(bao)(bao)護(hu)(hu)電(dian)(dian)(dian)(dian)路(lu)元件(jian)(jian)并(bing)聯在電(dian)(dian)(dian)(dian)路(lu)中,當(dang)電(dian)(dian)(dian)(dian)路(lu)中出現雷電(dian)(dian)(dian)(dian)過電(dian)(dian)(dian)(dian)壓(ya)、靜電(dian)(dian)(dian)(dian)過電(dian)(dian)(dian)(dian)壓(ya)或(huo)瞬態操(cao)作過電(dian)(dian)(dian)(dian)壓(ya)
時,利用壓敏(min)電(dian)(dian)(dian)阻(zu)的(de)非(fei)線性特性,壓敏(min)電(dian)(dian)(dian)阻(zu)會(hui)以(yi)納秒級(ji)時間的(de)響應速(su)度(du)將兩端電(dian)(dian)(dian)壓迅(xun)速(su)下降鉗位到一個相對固定的(de)安全(quan)電(dian)(dian)(dian)壓值,從
而避(bi)免被保護電路元件遭受(shou)過電壓的沖擊而損壞(huai)。
當(dang)施加于(yu)(yu)壓(ya)敏(min)電阻(zu)器兩端(duan)電壓(ya)小于(yu)(yu)其壓(ya)敏(min)電壓(ya),壓(ya)敏(min)電阻(zu)器相當(dang)于(yu)(yu)10MΩ以(yi)上絕(jue)緣電阻(zu);當(dang)在壓(ya)敏(min)電阻(zu)器兩端(duan)施加大于(yu)(yu)壓(ya)敏(min)電壓(ya)的過
電(dian)壓(ya)(ya)時,壓(ya)(ya)敏電(dian)阻器的電(dian)阻急劇下(xia)降呈現低阻態,從(cong)而(er)把電(dian)荷快速導走,有效地保(bao)護了電(dian)路中的其(qi)它(ta)元器件不致過壓(ya)(ya)而(er)損壞。
多層(ceng)(ceng)片(pian)式壓敏(min)電(dian)阻是(shi)貼片(pian)封(feng)裝的壓敏(min)電(dian)阻器,采(cai)用(yong)多層(ceng)(ceng)獨石結構,具備寄生(sheng)電(dian)感小、體積小、SMT效率高、響應(ying)時(shi)間短、工作溫度高、
保護(hu)能力(li)強(qiang)的優勢(shi)。恭成科技QV****H系列(lie)貼片壓(ya)(ya)敏電(dian)阻應用于100V以內低電(dian)壓(ya)(ya)電(dian)路,包括DC電(dian)源和低頻(pin)信號線(xian)進(jin)行雷擊、浪涌防護(hu),
吸收(shou)并衰(shuai)(shuai)減脈沖能量,可(ke)以吸收(shou)線路內部產生(sheng)的操作過電壓(整流、逆變(bian)(bian)換、變(bian)(bian)壓器產生(sheng)的電磁(ci)脈沖和線路浪涌)及衰(shuai)(shuai)減后的雷(lei)電感
應(ying)過(guo)電壓,用(yong)作(zuo)二級(ji)防(fang)護(hu)(可(ke)代替SMAJ/SMBJ的(de)TVS),同時部分應(ying)用(yong)于手(shou)機、LCD-TV/STB/電腦等的(de)通(tong)信接口(kou)進行ESD靜電防(fang)護(hu),替代
TVS使用。
QV1206H系列貼片壓敏電(dian)阻特(te)點(dian):
1) SMD小型貼片,節省空(kong)間,方(fang)便生(sheng)產;
2) 響(xiang)應時間為ns級,響(xiang)應速(su)度(du)滿足各(ge)種(zhong)電路保(bao)護要求;
3) 高(gao)浪涌(yong)(yong)抑制(zhi),同體(ti)積浪涌(yong)(yong)能力遠(yuan)大于TVS;
4) 高溫(wen)性能穩定,125℃不降額;
5) 低的(de)漏電流IL<10μA;
6) 雙向無極(ji)性保護,鉗位(wei)電壓低;
7) 優于UL94V-0可燃性等級;
8) 符(fu)合(he)RoHS環保標(biao)準
QV1206H系列貼片壓(ya)敏電(dian)阻應用(yong)范圍:
1) 汽車(che)電子應用:汽車(che)的控(kong)制單(dan)元、電液制動(dong)(dong)、ABS / ESP、天窗、車(che)窗控(kong)制等(deng)負載突(tu)降(jiang)保護(hu)和迅速啟動(dong)(dong)保護(hu);
2) 工業儀表、控制(zhi)(zhi)與測量設備、安(an)防攝像頭、電子電度表控制(zhi)(zhi)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;
4) 視頻(pin)(pin)和音頻(pin)(pin)線(xian)I / O端口、高速數據線(xian)(如HDMI、USB 3.0、IEEE 1394接(jie)口、射頻(pin)(pin)天線(xian)、射頻(pin)(pin)模塊)的ESD保護;
5) IEC 61000-4-5的(de)(de)浪涌(yong)保護(hu),IEC 61000-4-4的(de)(de)EFT保護(hu),ESD保護(hu)符(fu)合IEC 61000-4-2(4級)
QV1206H系列貼片壓敏(min)電阻性能參數:
1) 結構與尺寸;
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 | 片式壓(ya)敏電阻用 ZnO半(ban)導體陶(tao)瓷 | 內(nei)電極 (Ag 或 Ag-Pd) | 端電極 (Ag/Ni/Sn 三(san)層) |
2) 電性能參數:
型號 Part No. | 最大工作電壓(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 | 盤規格 | 載帶 | 每盤數量(liang)(pcs) |
1206 | 7" | 紙(zhi)帶 | 3K |