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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

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,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

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。

電路保護01.jpg  電路保護02.jpg


     限制電壓.jpg


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。         

            壓敏QV0805H-2.jpg


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

      V-I曲線1206-01.jpg


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;

壓敏QV0805H-3.jpg


類型

Lmm

Wmm

Tmm

amm

1206

3.2±0.2

1.6±0.2

1.2 Max.

0.50±0.25


部分

組成

片式壓(ya)敏電阻用(yong)

ZnO半(ban)導體陶(tao)瓷

內電(dian)極

(Ag 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