wifi投光灯上寻一颗贴片压敏电阻,参数对标jjsv4032k471g2,封装可以不同,有合适型号推荐吗?
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创建于2022-01-08
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- 用户_7124 (0)
- 推荐硕凯电子压敏电阻sv1812h471g0a,1812封装,压敏电压范围423V~517V,最大交流/直流工作电压范围300v~385V,最大钳位电压810V,最大峰值电流高达400a,最大能量耐量为2.3J,相关规格书参考链接:https://www.sekorm.com/doc/2300937.html。
- 创建于2022-01-08
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硕凯电子(Socay)MOV压敏电阻选型指南
Radial Lead Metal Oxide Varistor
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SOCAY硕凯压敏电阻20D561K在路灯电源输出端的浪涌防护,通流量可达6.5KA
硕凯电子推荐的20D561K,该器件采用的是插件封装,方便焊接,浪涌承受能力较强,通流量可达6.5KA,且留有一定的余量,低漏电流。对于AC220V电源输出口有较好的浪涌防护。
硕凯电子(Socay)MLV贴片压敏电阻选型指南
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【应用】10D681K压敏电阻用于洗衣机电源,满足差模2KV的浪涌测试
在洗衣机电源控制板中,由于存在接入市电电压不稳定以及雷雨天气产生的感应雷会对开关电源造成不良影响。针对此问题,硕凯电子给出了一个性价比较高的防护方案,只需要在输入端加一级压敏电阻就可以解决以上问题。可以过1.2/50uS组合波差模2KV的浪涌测试,测试次数正负五次,间隔60秒。该方案用到了普通型的压敏电阻10D681K。
陶瓷压敏电阻TNR™的压敏电阻电压
在使用陶瓷压敏电阻TNR™的压敏电阻电压时,电线与地面之间的压敏电阻电压应请选定在430V(电压代码: 431K)以上。
【经验】压敏电阻防雷的工作原理及特点
压敏电阻器相当于一个可变电阻,它是并联于电路中的,当电力线被雷击时,雷电波的高电压使压敏电阻击穿,雷电流通过压敏电阻流入大地,使电力线上的电压被钳制在安全范围内。压敏电阻的性能稳定、通流能力大,由于其突波承受能力取决于它的物理尺寸,因而有可能获得不同的浪涌电流值。
关于压敏电阻,你需要知道这4个参数
压敏电阻具有非线性良好、通流容量大、常态泄露电流小、残压水平低、动作响应快、无续流等优点。在电子设备电源线、信号线浪涌防护有着广泛的应用。
陶瓷压敏电阻TNR™的最大容许电路电压
使用时,请勿超出陶瓷压敏电阻TNR™的最大容许电路电压。
基于硕凯压敏电阻14D561K的IGBT快速开关电路,在浪涌抗干扰度试验中通过4级,且试验电压提高10%
本试验选用压敏电阻14D561K:击穿电压:504V-616V;通流量IPP高达4500A;位电压最大值 925V(50A);工作温度:-55 至+125°C;具有通流量大、残压低、响应时间快等特点。当干扰电压达到一定值时,就会把两端的电压钳位住,从而保护IGBT不被击穿
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测试等级:空气放电30KV±5%;接触放电30KV±5%,适用标准:GB/T 17626.2、IEC61000-4-2、ISO10605、GB/T 19951;给用户产品出电路保护设计方案建议及整改。点击预约,支持到场/视频直播测试,资深专家全程指导。
实验室地址: 深圳/上海 提交需求>

测试1.2/50us-8/20us组合波,10/700us-5/320us组合波,8/20us单波。能够模拟雷电瞬变引起的浪涌冲击抗干扰测试,最高电压达20KV,电流达20KA。点击预约,支持到场/视频直播测试,资深专家全程指导。
实验室地址: 深圳/上海 提交需求>