原创 VSR - 压敏电阻

2011-5-25 15:39 2733 4 4 分类: MCU/ 嵌入式
VSR - 压敏电阻(Varistor)
http://www.jsxingshun.com/ym2.htm
VSR 是压敏电阻器的简称,当其两端所加电压在标称值内时,其电阻几乎为无穷大,当其两端所加电压稍微超过标称值时,其电阻急剧下降。被应用于电路中作为保护器件。
 

氧化锌压敏电阻器主要是以氧化锌为主原料,添加多种少量金属氧化物,经成型烧结而成的陶瓷元件。
   压敏电阻器是一种电压非线性器件,它有对称而陡峭的击穿持性,当很高的瞬时过电压加到电路上时,压敏电阻的阻抗从接近于开路的状态急剧变化到高导通状态,把瞬时过电压抑制到安全电压水平,因而电路中的脆弱的元件受到保护。
特点与用途:
1   电压范围宽
2   对过电压响应快
3   耐脉冲电流能力强
4   限制电压低
5   电压温度系数小
   本压敏电阻器主要适用于电子 电器设备以及电源的暧间过电压保护和浪涌吸收。尤为适用电子电表 智能电表,远程自动抄表系统及远程载波预付费抄表系统等的过电压保护和间接防雷用。
   本产品通过UL1499娄全认证。编号:E191293(X)
   本产品通过CCEE安全认证。编号:CH0013941
c54.jpg

c55.jpg

压敏电阻器的尺寸                       单位:mm

尺寸代号型  号  尺  寸
 MYG-05MYG-07MYG-10 MYG-14MYG-20
Dmax 7.08.512.516.022.5
d(±0.1)0.60.6 0.8 0.81.0
Tmax5.86.0 9.1 9.19.5
W(±0.1)5.05.07.5 7.510.0
Hmax10.011.515.1 19.025.5

压敏电阻器的客定值列入表中
注:表中所列电容量为参考值,不作为考核值。
其它特性
漏电流:在+25°C时:20UA
        在+85°C时:40UA
气候类别:40/085/04
降功耗

 

                 MYG型彩电用压敏电阻器

    标称压敏电压

56V/1mA

270V/0.1mA

470V/0.1mA620V/1mA
最大连续电压AC(V)

35

175300380
DC(V)45225385505
   压敏电压(V)10%56270470620
    等级电流(A)35530
    等级电压(V)1104758101025
脉冲电流(A)8/20us
10次
305050300
 20ms
10次
1114.5
  漏电流(UA)2550303030
85100606060
 外形尺寸(mm)D max97714
W max4566.2
A555.07.5
d0.60.60.60.8

 

型号压敏电压最大连接工作电压最大限制电压能量耐量2ms通流容量
(B*20US)(A)
额定功率静电容量参考值
VAC
rms
(V)
DC
(V)
VC
(V)
IP
(V)
(j)1
time
2
time
(W)1KHZ
(PF)
MYG-05K82082(74-90)506514552.58006000.1460
MYG-07K820135105175012500.25810
MYG-10K8201352510350025000.42000
MYG-14K8201355020600050000.63700
MYG-20K820135100401000070001.07500
MYG-05K101100(90-110)6085175538006000.1400
MYG-07K101165106175012500.25700
MYG-10K1011652512350025000.41700
MYG-14K1011655025600050000.63200
MYG-20K101165100501000070001.06500
MYG-05K121120(108-132)7510021053.58006000.1350
MYG-07K121200107175012500.25590
MYG-10K1212002514.5350025000.41400
MYG-14K1212005030600050000.62700
MYG-20K121200100601000070001.05500
MYG-05K151150(135-165)9512526054.58006000.1300
MYG-07K15125019175012500.25500
MYG-10K1512502518350025000.41100
MYG-14K1512505037.5600050000.62200
MYG-20K151250100751000070001.04500
MYG-05K201200(185-225)130170355568006000.1110
MYG-07K2013401012.5175012500.25190
MYG-10K2013402525350025000.4410
MYG-14K2013405050600050000.6770
MYG-20K2013401001001000070001.01700
MYG-05K221220(198-242)14018030058.58008000.1100
MYG-07K2213601013.5175012500.25170
MYG-10K2213602527.5350025000.4380
MYG-14K2213605055600050000.6740
MYG-20K2213601001101000070001.01600
MYG-05K241240(216-264)15020041557.58006000.190
MYG-07L2413951015175012500.25150
MYG-10K2413952530350025000.4350
MYG-14K2413955060600050000.6700
MYG-20K2413951001201000070001.01500
MYG-05K271270(247-303)175225475588006000.180
MYG-07K2714551017175012500.25130
MYG-10K2714552535350025000.4300
MYG-14K2714555070600050000.6640
MYG-20K2714551001351000070001.01300
MYG-05K331330(297-363)21027057059.58006000.180
MYG-07K3315451020175012500.25130
MYG-10K3315452542350025000.4300
MYG-14K3315455080600050000.6580
MYG-20K3315451001601000070001.01100
MYG-05K361360(324-396)2303006205118006000.180
MYG-07K3615951023175012500.25130
MYG-10K3615952545350025000.4300
MYG-14K3615955090600050000.6540
MYG-20K3615951001801000070001.01100

 

型号压敏电压最大连接工作电压最大限制电压能量耐量2ms通流容量
(B*20US)(A)
额定功率静电容量参考值
VAC
rms
(V)
DC
(V)
VC
(V)
IP
(V)
(j)1
time
2
time
(W)1KHZ
(PF)
MYG-05K391390(351-429)2503206755128006000.180
MYG-07K3916501025175012500.25120
MYG-10K391650255035005000.4300
MYG-14K39165050100600045000.6500
MYG-20K3916501001951000065001.01100
MYG-05K431430(387-473)275350745513.58006000.170
MYG-07K4317101027.5175012500.25100
MYG-10K4317102555350025000.4270
MYG-14K43171050110600045000.6450
MYG-20K4317101002151000065001.01000
MYG-05K471470(423-517)3003858105158006000.160
MYG-07K4717751030175012500.2590
MYG-10K4717752560350025000.420
MYG-14K47177550125600045000.6400
MYG-20K4717751002501000065001.0900
MYG-07K511510(459-561)3204108451032175012500.390
MYG-10K5118452567350025000.4210
MYG-14K51184550136600045000.6350
MYG-10K5118451002731000065001.0800
MYG-10K621620(558-682)38550510252567350025000.4190
MYG-14K621102550136500045000.6330
MYG-20K6211025100273750065001.0700
MYG-10K681680(612-748)42056011202567350025000.4170
MYG-14K681112050136500045000.6320
MYG-20K6811120100273750065001.0650
MYG-10K751750(675-825)46061512402570350025000.4160
MYG-14K751124050150600045000.6310
MYG-20K7511240100300750065001.0600
MYG-10K821820(738-902)51067013552580350025000.4140
MYG-14K821135550165500045000.6280
MYG-20K8211355100325750065001.0530
MYG-10K911910(819-1001)55074515002590350025000.4120
MYG-14K911150050180500045000.6250
MYG-20K9111500100360750065001.0500
MYG-10K1021000(900-1100)625825165025100350025000.4110
MYG-14K102165050200500045000.6230
MYG-20K1021650100400750065001.0450
             
MYG-10K1121100(990-1210)680895181525110350025000.4110
MYG-14K112181550220500045000.6210
MYG-20K1121815100440750065001.0400
MYG-10K1821800(1700-1980)10001465297025183350025000.470
MYG-14K182297050360500045000.6120
MYG-20K1822970100720750065001.0250

 

 

 
“MYG 10K471”见:http://www.jsxingshun.com/ym2.htm
470V这个值是指:当压敏电阻的两端电压达到470V,(423V-517V)的时候,压敏电阻(即击穿)。
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