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ERK2HM4R7F12OT 是 AISHI(艾华集团)推出的一款直插式铝电解电容器,封装为 D8×L12mm,适用于高压直流滤波与能量存储场合。该型号容值为 4.7µF,额定电压 500V,公差 ±20%,引脚间距 3.5mm,电容体直径 8mm、长度 12mm,额定工作寿命 2000 小时(105℃)。凭借紧凑体积与较高电压等级,适合体积受限且需处理高电压脉动的电源和电子设备中使用。
ERK2HM 系列采用传统铝电解结构,内部以氧化铝薄膜作介质,配合电解液实现较高的电容密度与耐压能力。直插式引脚便于手工焊接或波峰焊接装配,3.5mm 的脚距适合常见通孔 PCB 布局,体积紧凑(D8×L12mm)有助于在受限空间内实现高压滤波需求。外表通常标注容值、耐压、极性与批次信息,顶端带排气结构以提高失效安全性。
注意:铝电解电容具有极性,且在施加直流偏压、温度与频率下电容值与等效串联电阻(ESR)会发生变化,设计时应关注直流偏压效果、纹波电流与散热条件。
铝电解电容在超出额定电压、反向电压或长期超温工作时可能发生泄漏、鼓胀甚至破裂并释放电解液。设计时应保证良好的安全裕量、可靠的极性识别和适当的挡位防护。对于关键应用,建议参考厂商完整的规格书与可靠性试验报告,并在必要时做寿命加速测试以验证系统级可靠性。
总结:ERK2HM4R7F12OT 是一款针对高压、小体积直插场合设计的铝电解电容器,适合用于需要 500V 等级滤波与能量存储的电源与工业设备。选型时应综合考虑工作电压、纹波电流、散热条件及寿命要求,按照厂商规范进行装配与使用。
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Product sourcing intelligence
WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.
Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.
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The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.
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The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.
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