QV1210H系列貼片壓敏(min)電阻介(jie)紹:
氧化鋅(xin)壓敏電阻是一種(zhong)以氧化鋅(xin)為(wei)主體、添加多(duo)種(zhong)金(jin)屬氧化物為(wei)添加劑、經過空氣中高溫燒結而制成的(de)多(duo)晶半(ban)導體陶瓷元(yuan)件。壓敏
電(dian)阻是一種限壓(ya)型(xing)保(bao)護器件(jian)。壓(ya)敏電(dian)阻(zu)和被保(bao)護電(dian)路(lu)元(yuan)件(jian)并聯在電(dian)路(lu)中(zhong),當電(dian)路(lu)中(zhong)出現雷電(dian)過電(dian)壓(ya)、靜電(dian)過電(dian)壓(ya)或瞬態操作(zuo)過電(dian)壓(ya)
時,利用壓(ya)(ya)敏電阻的(de)非線性特性,壓(ya)(ya)敏電阻會以納秒(miao)級時間的(de)響應速度將兩端(duan)電壓(ya)(ya)迅(xun)速下降鉗位到一個相對固定的(de)安全電壓(ya)(ya)值,從(cong)
而(er)避(bi)免被保護電(dian)路元(yuan)件遭受過電(dian)壓的沖擊而(er)損(sun)壞(huai)。
當(dang)(dang)施(shi)加(jia)于(yu)壓(ya)(ya)(ya)敏電(dian)(dian)(dian)阻器兩(liang)端電(dian)(dian)(dian)壓(ya)(ya)(ya)小于(yu)其(qi)壓(ya)(ya)(ya)敏電(dian)(dian)(dian)壓(ya)(ya)(ya),壓(ya)(ya)(ya)敏電(dian)(dian)(dian)阻器相當(dang)(dang)于(yu)10MΩ以上(shang)絕緣電(dian)(dian)(dian)阻;當(dang)(dang)在壓(ya)(ya)(ya)敏電(dian)(dian)(dian)阻器兩(liang)端施(shi)加(jia)大于(yu)壓(ya)(ya)(ya)敏電(dian)(dian)(dian)壓(ya)(ya)(ya)的過
電壓(ya)時,壓(ya)敏電(dian)阻器的電(dian)阻急劇下降呈現低阻態,從而把電(dian)荷快(kuai)速導(dao)走(zou),有效地保護了(le)電(dian)路中的其它元(yuan)器件不(bu)致(zhi)過(guo)壓(ya)而損(sun)壞。
多(duo)層片(pian)(pian)式壓敏電(dian)阻是貼片(pian)(pian)封裝的壓敏電(dian)阻器,采用(yong)多(duo)層獨(du)石結構,具(ju)備寄生電(dian)感小、體積小、SMT效率高、響應時間短、工作溫度高、
保護能(neng)力強的(de)優勢。恭成科(ke)技QV****H系列(lie)貼片(pian)壓敏(min)電阻應用(yong)于100V以內(nei)低(di)電壓電路,包括(kuo)DC電源和低(di)頻信號(hao)線進行雷擊、浪涌(yong)防(fang)護,
吸收(shou)并(bing)衰(shuai)減脈沖(chong)(chong)能量,可以吸收(shou)線路內部產生的操作過電(dian)壓(整流、逆變換(huan)、變壓器產生的電(dian)磁脈沖(chong)(chong)和線路浪涌)及衰(shuai)減后(hou)的雷電(dian)感
應過電壓,用作二級防護(hu)(可(ke)代(dai)(dai)替SMAJ/SMBJ的TVS),同(tong)時(shi)部(bu)分應用于手(shou)機、LCD-TV/STB/電腦等(deng)的通(tong)信接口進行ESD靜電防護(hu),替代(dai)(dai)
TVS使用。
QV1210H系列貼片壓敏電阻特點:
1) SMD小型貼片,節省空間,方便生產;
2) 響應(ying)時間(jian)為(wei)ns級(ji),響應(ying)速度滿足(zu)各種(zhong)電(dian)路保(bao)護(hu)要求;
3) 高浪(lang)涌(yong)抑制,同體積浪(lang)涌(yong)能力遠(yuan)大于TVS;
4) 高溫性能穩定,125℃不降額;
5) 低的漏電(dian)流IL<10μA;
6) 雙向(xiang)無極性(xing)保(bao)護,鉗位電壓低;
7) 優(you)于(yu)UL94V-0可燃性等級(ji);
8) 符(fu)合(he)RoHS環保標準(zhun)
QV1210H系列(lie)貼片(pian)壓敏電阻應(ying)用范圍:
1) 汽車(che)電子應用:汽車(che)的(de)控制(zhi)單(dan)元、電液(ye)制(zhi)動(dong)(dong)、ABS / ESP、天窗(chuang)(chuang)、車(che)窗(chuang)(chuang)控制(zhi)等負載突降保護(hu)和迅速啟動(dong)(dong)保護(hu);
2) 工(gong)業儀表(biao)、控(kong)制(zhi)與測量(liang)設備、安(an)防攝像頭、電子(zi)電度表(biao)控(kong)制(zhi)板;
3) 5G通訊基站、網(wang)通設(she)備、網(wang)絡產品接口(kou)、漏電保(bao)護器控制板;
4) 視頻和音頻線I / O端口(kou)、高速數據線(如HDMI、USB 3.0、IEEE 1394接口(kou)、射頻天線、射頻模(mo)塊)的ESD保護;
5) IEC 61000-4-5的浪(lang)涌(yong)保護,IEC 61000-4-4的EFT保護,ESD保護符合IEC 61000-4-2(4級)
QV1210H系列貼(tie)片壓敏(min)電阻性(xing)能參(can)數(shu):
1) 結構(gou)與尺(chi)寸;
類型 | 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(cheng) | 片式壓敏電(dian)阻用(yong) ZnO半導體陶瓷 | 內電極 (Ag 或 Ag-Pd) | 端電(dian)極 (Ag/Ni/Sn 三層) |
2) 電性能參數:
型號 Part No. | 最(zui)大工作電壓 Max. Working Voltage | 壓敏電壓 Varistor Voltage @1mA DC | 最(zui)大限位電壓 Max. Clamping Voltage (8/20μs) | 峰(feng)值電流(liu) 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) | |
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(chan)品(pin)包裝:
類型 | 盤規格 | 載帶(dai) | 每盤數量(pcs) |
1210 | 7" | 紙帶 | 3K |