压敏电阻是一种限压型保护器件。压敏电阻也叫：突波吸收器，利用压敏电阻的非线性特性，当过电压出现在压敏电阻的两极间，压敏电阻可以将电压钳位到一个相对固定的电压值，从而实现对后级电路的保护。压敏电阻的主要参数有：压敏电压、通流容量、结电容、响应时间等。PartNoMaximumAllowableMaximumWithstandingRatedVaristorVoltageMaximumWattageClampingVoltageEnergySurgeCurrent8/20uSVoltageACrmsDC10/1000us1times2times(W)At0.1mAAt5A(V)(V)(J)(A)(V)（V）05D180L10140.4100500.0118(15-21)3805D220K14180.6100500.0122(20-24)4305D270K17220.7100500.0127(24-30)5305D330K20260.8100500.0133(30-36)6505D390K25311.1100500.0139(35-43)7705D470K30381.4100500.0147(42-52)3905D560K35451.5100500.0156(50-62)11005D680K40561.8100500.0168(61-75)13505D820K50652.84002000.182(74-90)13505D101K60852.84002000.1100(90-110)16505D121K751004.24002000.1120(108-132)20005D151K951254.24002000.1150(135-165)25005D181K1151505.64002000.1180(162-198)30005D201K1301707.74002000.1220(180-220)33005D221K1401808.84002000.1220(198-242)36005D241K1502009.94002000.1240(216-264)39505D271K17522510.24002000.1270(243-297)45505D301K19025011.84002000.13OO(270-330)50505D331K210275144002000.1330(297-363)55005D361K230300144002000.1360(324-396)59505D391K25032015.44002000.1390(351-429)65005D431K27535016.84002000.1430(387-473)71005D471K30038518.24002000.1470(423-517)77505D511K32041519.64002000.1510(459-561)84505D561K35046019.64002000.1560(504-616)92005D621K385505214002000.1620(558-682)102505D681K420560214002000.1680(612-748)112005D751K46061522.44002000.1750(675-825)1240)