QV1206H系列貼片壓敏電(dian)阻介紹(shao):
氧化鋅(xin)壓(ya)敏電(dian)阻(zu)是一種(zhong)以氧化鋅(xin)為主(zhu)體(ti)、添加(jia)多種(zhong)金屬氧化物(wu)為添加(jia)劑、經過空氣(qi)中高溫燒(shao)結(jie)而(er)制成的多晶半導體(ti)陶(tao)瓷(ci)元(yuan)件。壓(ya)敏
電阻是一種(zhong)限壓(ya)(ya)型保護器件。壓(ya)(ya)敏電(dian)(dian)(dian)(dian)阻和被保護電(dian)(dian)(dian)(dian)路元件并聯在電(dian)(dian)(dian)(dian)路中(zhong),當電(dian)(dian)(dian)(dian)路中(zhong)出現雷電(dian)(dian)(dian)(dian)過(guo)電(dian)(dian)(dian)(dian)壓(ya)(ya)、靜(jing)電(dian)(dian)(dian)(dian)過(guo)電(dian)(dian)(dian)(dian)壓(ya)(ya)或瞬(shun)態操作過(guo)電(dian)(dian)(dian)(dian)壓(ya)(ya)
時,利用壓(ya)敏電(dian)(dian)阻(zu)的非線(xian)性(xing)特性(xing),壓(ya)敏電(dian)(dian)阻(zu)會(hui)以納秒級時間的響應速度將兩端電(dian)(dian)壓(ya)迅速下降鉗位到一個相對固定的安全電(dian)(dian)壓(ya)值,從(cong)
而避免被保護(hu)電(dian)路(lu)元件遭受過電(dian)壓的沖擊而損壞。
當(dang)施加(jia)于壓(ya)(ya)(ya)(ya)敏電阻器兩端電壓(ya)(ya)(ya)(ya)小于其壓(ya)(ya)(ya)(ya)敏電壓(ya)(ya)(ya)(ya),壓(ya)(ya)(ya)(ya)敏電阻器相當(dang)于10MΩ以上絕緣電阻;當(dang)在壓(ya)(ya)(ya)(ya)敏電阻器兩端施加(jia)大于壓(ya)(ya)(ya)(ya)敏電壓(ya)(ya)(ya)(ya)的(de)過
電壓(ya)時,壓(ya)敏電(dian)阻(zu)器(qi)的(de)電(dian)阻(zu)急劇下(xia)降呈現低阻(zu)態(tai),從(cong)而把電(dian)荷快速導走,有效地保護了(le)電(dian)路中(zhong)的(de)其它(ta)元器(qi)件不致過壓(ya)而損壞。
多(duo)層(ceng)片式(shi)壓敏(min)電阻是貼(tie)片封裝的壓敏(min)電阻器,采(cai)用多(duo)層(ceng)獨(du)石結構,具備寄生電感小、體(ti)積小、SMT效率(lv)高、響應時間短、工作溫度高、
保護能力強(qiang)的優勢。恭成科(ke)技QV****H系(xi)列(lie)貼片(pian)壓敏電阻(zu)應用于100V以(yi)內低電壓電路,包括DC電源和(he)低頻信號線進行雷擊(ji)、浪涌防護,
吸收并衰減脈沖能量(liang),可以吸收線路內(nei)部(bu)產生(sheng)的操作過電(dian)壓(整流(liu)、逆(ni)變換、變壓器產生(sheng)的電(dian)磁脈沖和線路浪涌(yong))及衰減后的雷電(dian)感(gan)
應過電(dian)壓,用(yong)作二(er)級(ji)防護(hu)(可(ke)代替SMAJ/SMBJ的TVS),同時部分應用(yong)于(yu)手機(ji)、LCD-TV/STB/電(dian)腦等的通信接口(kou)進行(xing)ESD靜電(dian)防護(hu),替代
TVS使用。
QV1206H系列貼片壓敏電阻特點:
1) SMD小型貼片,節省(sheng)空間,方便生(sheng)產;
2) 響(xiang)應(ying)時間(jian)為ns級,響(xiang)應(ying)速度滿足各種(zhong)電路保(bao)護(hu)要求;
3) 高浪(lang)涌(yong)抑制(zhi),同體(ti)積(ji)浪(lang)涌(yong)能力遠(yuan)大(da)于TVS;
4) 高溫性能穩定(ding),125℃不降(jiang)額;
5) 低(di)的漏電流IL<10μA;
6) 雙向無極性保護,鉗位電(dian)壓低;
7) 優于(yu)UL94V-0可燃性等(deng)級;
8) 符合RoHS環保標準
QV1206H系(xi)列貼(tie)片壓(ya)敏電阻應用范圍:
1) 汽車電(dian)(dian)子應用:汽車的控(kong)(kong)制單元、電(dian)(dian)液制動、ABS / ESP、天窗(chuang)、車窗(chuang)控(kong)(kong)制等負載(zai)突降(jiang)保(bao)(bao)護和迅速啟動保(bao)(bao)護;
2) 工業儀表(biao)、控(kong)制(zhi)與測量設備、安防攝像頭(tou)、電子電度表(biao)控(kong)制(zhi)板;
3) 5G通(tong)訊(xun)基站(zhan)、網通(tong)設備(bei)、網絡(luo)產品接口、漏電保護器控制板;
4) 視頻和(he)音頻線(xian)I / O端(duan)口(kou)、高速數據線(xian)(如(ru)HDMI、USB 3.0、IEEE 1394接(jie)口(kou)、射(she)頻天線(xian)、射(she)頻模塊)的(de)ESD保護;
5) IEC 61000-4-5的浪涌保(bao)護,IEC 61000-4-4的EFT保(bao)護,ESD保(bao)護符(fu)合IEC 61000-4-2(4級)
QV1206H系列貼片壓敏電(dian)阻性能參數(shu):
1) 結構(gou)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 |
組成 | 片式壓(ya)敏電阻用(yong) ZnO半(ban)導體陶(tao)瓷 | 內電(dian)極 (Ag 或 Ag-Pd) | 端電極 (Ag/Ni/Sn 三層) |
2) 電(dian)性能參(can)數:
型號(hao) Part No. | 最大工作電壓 Max. Working Voltage | 壓(ya)敏(min)電壓(ya) 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(zhuang):
類型 | 盤規格 | 載帶 | 每盤數量(pcs) |
1206 | 7" | 紙(zhi)帶 | 3K |