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QV1210H系(xi)列貼片壓(ya)敏電(dian)阻(zu)介紹(shao):

氧(yang)化鋅壓(ya)敏電(dian)阻是一(yi)種以氧(yang)化鋅為(wei)主體、添(tian)加(jia)多種金(jin)屬氧(yang)化物為(wei)添(tian)加(jia)劑、經(jing)過空氣中高溫燒結而制成的多晶(jing)半(ban)導體陶瓷元件。壓(ya)敏

是一(yi)種限壓型保護器(qi)件。壓敏電(dian)(dian)阻和被(bei)保護電(dian)(dian)路(lu)元件并(bing)聯在電(dian)(dian)路(lu)中,當電(dian)(dian)路(lu)中出現(xian)雷電(dian)(dian)過電(dian)(dian)壓、靜電(dian)(dian)過電(dian)(dian)壓或瞬態操作過電(dian)(dian)壓

時,用壓(ya)(ya)敏電阻的非(fei)線(xian)性(xing)特性(xing),壓(ya)(ya)敏電阻會以納秒級時間(jian)的響應速(su)(su)度(du)將兩端電壓(ya)(ya)迅速(su)(su)下降鉗(qian)位(wei)到一個相對固(gu)定的安(an)全電壓(ya)(ya)值,從

而避免保護電路元(yuan)件遭受過電壓的沖(chong)擊而損壞。

當施加于(yu)壓(ya)(ya)(ya)(ya)敏(min)(min)電阻器兩(liang)(liang)端(duan)電壓(ya)(ya)(ya)(ya)小于(yu)其(qi)壓(ya)(ya)(ya)(ya)敏(min)(min)電壓(ya)(ya)(ya)(ya),壓(ya)(ya)(ya)(ya)敏(min)(min)電阻器相當于(yu)10MΩ以上絕緣電阻;當在壓(ya)(ya)(ya)(ya)敏(min)(min)電阻器兩(liang)(liang)端(duan)施加大(da)于(yu)壓(ya)(ya)(ya)(ya)敏(min)(min)電壓(ya)(ya)(ya)(ya)的過

壓(ya)時,壓(ya)敏電(dian)阻器(qi)的電(dian)阻急劇下降(jiang)呈(cheng)現(xian)低阻態,從而把電(dian)荷(he)快速導走,有效地保護了電(dian)路中的其它元器(qi)件(jian)不致過壓(ya)而損壞。

電路保護01.jpg  電路保護02.jpg


     限制電壓.jpg


多(duo)層(ceng)片式壓敏電(dian)(dian)阻是(shi)貼片封裝的壓敏電(dian)(dian)阻器,采用多(duo)層(ceng)獨石(shi)結(jie)構,具備寄生電(dian)(dian)感小、體積小、SMT效率高、響(xiang)應時間短、工作溫度高、

保護(hu)能力強的優勢。恭(gong)成(cheng)科技QV****H系(xi)列貼(tie)片壓敏電(dian)阻應用(yong)于100V以內低電(dian)壓電(dian)路(lu),包括DC電(dian)源和低頻(pin)信號(hao)線(xian)進行雷擊、浪涌(yong)防護(hu),

吸收(shou)并衰(shuai)減(jian)脈沖(chong)能量,可以吸收(shou)線(xian)路內部產生(sheng)的操作過電壓(ya)(整流、逆變(bian)換、變(bian)壓(ya)器產生(sheng)的電磁脈沖(chong)和線(xian)路浪(lang)涌)及衰(shuai)減(jian)后的雷電感

應過電(dian)壓,用作二級防護(可代替SMAJ/SMBJ的TVS),同(tong)時部(bu)分應用于(yu)手(shou)機、LCD-TV/STB/電(dian)腦等(deng)的通信(xin)接口進行ESD靜電(dian)防護,替代

TVS使用。         

            壓敏QV0805H-2.jpg


QV1210H系列貼片(pian)壓敏電阻特點:            

1) SMD小型(xing)貼(tie)片,節(jie)省(sheng)空間,方便(bian)生產;

2) 響(xiang)應時間為ns級(ji),響(xiang)應速(su)度(du)滿足各種(zhong)電路保護要(yao)求;

3) 高(gao)浪涌(yong)抑制,同體積浪涌(yong)能(neng)力遠(yuan)大于(yu)TVS;

4) 高溫性能(neng)穩(wen)定(ding),125℃不降(jiang)額;

5) 低的漏電流(liu)IL<10μA;

6) 雙向無極性保護,鉗位電(dian)壓(ya)低(di);

7) 優于(yu)UL94V-0可燃性(xing)等級(ji);

8) 符(fu)合RoHS環保標準

        V-I曲線1210-01.jpg


QV1210H系列(lie)貼片壓(ya)敏電阻應用范(fan)圍:

1) 汽(qi)車(che)(che)(che)電(dian)子應用:汽(qi)車(che)(che)(che)的控(kong)制(zhi)單元、電(dian)液(ye)制(zhi)動(dong)、ABS / ESP、天(tian)窗、車(che)(che)(che)窗控(kong)制(zhi)等負載突降保護和迅(xun)速啟動(dong)保護;

2) 工(gong)業儀表、控(kong)制與測(ce)量設(she)備、安防(fang)攝像(xiang)頭(tou)、電子電度表控(kong)制板;

3) 5G通(tong)訊基(ji)站(zhan)、網通(tong)設備、網絡產品接口、漏電保護(hu)器控制板;

4) 視(shi)頻(pin)和音(yin)頻(pin)線I / O端口(kou)(kou)、高(gao)速數據線(如HDMI、USB 3.0、IEEE 1394接口(kou)(kou)、射(she)頻(pin)天線、射(she)頻(pin)模塊)的ESD保護;

5) IEC 61000-4-5的(de)浪涌保護,IEC 61000-4-4的(de)EFT保護,ESD保護符合IEC 61000-4-2(4級)


QV1210H系列貼片壓(ya)敏電(dian)阻(zu)性能參數:

1) 結構與尺寸;

壓敏QV0805H-3.jpg


類型(xing)

Lmm

Wmm

Tmm

amm

1210

3.2±0.3

2.5±0.25

1.5 Max.

0.50±0.25


部分

組(zu)成

片式壓敏(min)電阻用(yong)

ZnO半(ban)導體陶瓷

內電(dian)極(ji)

(Ag 或(huo) Ag-Pd)

端電極

(Ag/Ni/Sn 三層)


2) 電性能參(can)數:

型(xing)號

Part No.

最大工作電壓

Max. Working Voltage

壓(ya)敏電壓(ya)

Varistor Voltage

@1mA DC      

最大(da)限位電壓

Max. Clamping Voltage

(8/20μs)

峰(feng)值電流(liu)

Peak Current

(8/20μs)

能量(liang)耐量(liang)

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) 產品(pin)包裝:

類(lei)型

盤規格(ge)

載帶

每(mei)盤數量(pcs

1210

7"

紙帶

3K