QV1206H系(xi)列貼片壓敏電阻介紹:
氧化鋅壓(ya)敏電阻是一(yi)種(zhong)以氧化鋅為主體、添(tian)加多種(zhong)金(jin)屬氧化物(wu)為添(tian)加劑、經(jing)過(guo)空氣中高溫燒結(jie)而制成的多晶半導體陶(tao)瓷(ci)元(yuan)件。壓(ya)敏
電阻是一種限壓(ya)型保護(hu)器件。壓(ya)敏(min)電(dian)(dian)阻和被保護(hu)電(dian)(dian)路元件并聯在(zai)電(dian)(dian)路中,當(dang)電(dian)(dian)路中出現雷電(dian)(dian)過(guo)電(dian)(dian)壓(ya)、靜電(dian)(dian)過(guo)電(dian)(dian)壓(ya)或瞬態操(cao)作(zuo)過(guo)電(dian)(dian)壓(ya)
時,利用(yong)壓敏電(dian)阻的非線(xian)性特性,壓敏電(dian)阻會(hui)以納(na)秒級(ji)時間的響(xiang)應速(su)度將兩(liang)端電(dian)壓迅速(su)下降(jiang)鉗位到一個相對固(gu)定的安全電(dian)壓值,從
而避免被保護電路元件(jian)遭受過電壓的沖擊(ji)而損(sun)壞(huai)。
當施加于壓(ya)(ya)敏(min)(min)電(dian)(dian)(dian)阻(zu)器(qi)兩端(duan)電(dian)(dian)(dian)壓(ya)(ya)小于其壓(ya)(ya)敏(min)(min)電(dian)(dian)(dian)壓(ya)(ya),壓(ya)(ya)敏(min)(min)電(dian)(dian)(dian)阻(zu)器(qi)相(xiang)當于10MΩ以上(shang)絕緣(yuan)電(dian)(dian)(dian)阻(zu);當在(zai)壓(ya)(ya)敏(min)(min)電(dian)(dian)(dian)阻(zu)器(qi)兩端(duan)施加大于壓(ya)(ya)敏(min)(min)電(dian)(dian)(dian)壓(ya)(ya)的過
電壓(ya)時(shi),壓(ya)敏電(dian)阻器的(de)電(dian)阻急劇下降(jiang)呈現低(di)阻態,從而把電(dian)荷快(kuai)速導走(zou),有效(xiao)地(di)保(bao)護了電(dian)路(lu)中的(de)其它(ta)元器件不致過(guo)壓(ya)而損壞。
多(duo)層(ceng)片(pian)式壓(ya)敏電(dian)阻(zu)是貼(tie)片(pian)封裝的壓(ya)敏電(dian)阻(zu)器(qi),采(cai)用多(duo)層(ceng)獨石結(jie)構,具備(bei)寄生電(dian)感(gan)小、體積(ji)小、SMT效率高(gao)、響應時間短、工作溫度(du)高(gao)、
保護能力強的優勢(shi)。恭成科(ke)技QV****H系列(lie)貼片(pian)壓敏電(dian)阻應用(yong)于100V以(yi)內(nei)低(di)電(dian)壓電(dian)路,包括DC電(dian)源和低(di)頻(pin)信號線進行雷擊、浪涌防護,
吸收(shou)并衰(shuai)減(jian)(jian)脈(mo)沖能量,可以吸收(shou)線路內部產生的操(cao)作過電(dian)壓(ya)(整(zheng)流、逆變換、變壓(ya)器(qi)產生的電(dian)磁(ci)脈(mo)沖和線路浪涌)及(ji)衰(shuai)減(jian)(jian)后的雷(lei)電(dian)感
應過電(dian)(dian)壓,用(yong)作二級防(fang)護(可代替(ti)SMAJ/SMBJ的TVS),同(tong)時(shi)部分應用(yong)于手(shou)機、LCD-TV/STB/電(dian)(dian)腦(nao)等的通信接口(kou)進行ESD靜(jing)電(dian)(dian)防(fang)護,替(ti)代
TVS使用(yong)。
QV1206H系列貼片壓敏電阻特點:
1) SMD小(xiao)型(xing)貼片(pian),節省空間,方便生產(chan);
2) 響應(ying)時間為(wei)ns級,響應(ying)速度(du)滿足各種電路(lu)保護要求;
3) 高(gao)浪涌(yong)抑制,同體(ti)積浪涌(yong)能力遠(yuan)大于(yu)TVS;
4) 高溫性(xing)能穩定,125℃不降額;
5) 低的漏電流IL<10μA;
6) 雙向無極(ji)性保(bao)護,鉗位電壓(ya)低(di);
7) 優于(yu)UL94V-0可燃性等級(ji);
8) 符合(he)RoHS環保標準(zhun)
QV1206H系列貼片壓(ya)敏電阻(zu)應用范(fan)圍:
1) 汽(qi)車電子應(ying)用:汽(qi)車的控制(zhi)單(dan)元、電液制(zhi)動、ABS / ESP、天窗(chuang)、車窗(chuang)控制(zhi)等負(fu)載突降保護和迅速啟(qi)動保護;
2) 工業儀表、控(kong)制(zhi)與(yu)測量設備(bei)、安防攝(she)像頭(tou)、電子電度表控(kong)制(zhi)板;
3) 5G通(tong)(tong)訊基站、網(wang)通(tong)(tong)設備、網(wang)絡產品接(jie)口、漏電保(bao)護器控制板(ban);
4) 視頻(pin)和音頻(pin)線(xian)I / O端口、高速數據(ju)線(xian)(如HDMI、USB 3.0、IEEE 1394接口、射頻(pin)天(tian)線(xian)、射頻(pin)模塊(kuai))的ESD保護(hu);
5) IEC 61000-4-5的(de)浪涌保(bao)護(hu),IEC 61000-4-4的(de)EFT保(bao)護(hu),ESD保(bao)護(hu)符合IEC 61000-4-2(4級)
QV1206H系列貼片壓(ya)敏電(dian)阻性能參數(shu):
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 |
組成 | 片(pian)式壓敏電阻用 ZnO半導體(ti)陶瓷 | 內電(dian)極 (Ag 或(huo) Ag-Pd) | 端電極 (Ag/Ni/Sn 三層) |
2) 電性能參數:
型(xing)號 Part No. | 最大工作電(dian)壓 Max. Working Voltage | 壓(ya)敏電(dian)壓(ya) Varistor Voltage @1mA DC | 最大(da)限位(wei)電壓(ya) 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(pin)包裝:
類型(xing) | 盤(pan)規格 | 載帶(dai) | 每盤數量(pcs) |
1206 | 7" | 紙帶 | 3K |