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Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
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EEEFP1V221AP 是 PANASONIC(松下)推出的一款贴片型铝电解电容,标称容量 220µF,公差 ±20%,额定电压 35V。封装为 SMD,电容体直径 D=8mm,长度 L=10.2mm,适合主流开关电源滤波、总线去耦与能量缓冲等场合。
在厂商给定的 100kHz 条件下,峰值纹波电流 0.85A 对应的电耗 P ≈ I_rms^2 × ESR = 0.85^2 × 0.08 ≈ 0.058W(约58mW)。该损耗将以热量形式由电容及周围 PCB 散出,实际温升受布局、铜箔面积及通风影响。容量随温度与频率下降属于铝电解的典型特性,±20% 的公差需在设计滤波/时间常数时预留裕量。
标称寿命 2000 小时(105℃)表明在高温极限下的额定寿命。按照经验法则(每降温10℃寿命约翻倍),在 85℃ 时粗略可估为约 8000 小时,但具体数值需参考厂商寿命曲线与加速老化数据。若在更高可靠性或更长寿命场合,建议选择寿命更长(如 3000–5000h 或更高温升耐受)的产品或增大容量/并联以降低单体应力。
选择时重点关注:纹波电流能力、ESR、工作温度与寿命。若系统有更高纹波或更长寿命要求,可考虑同厂更高额定纹波、更低 ESR 或更长寿命的型号;在空间允许下并联多个相同小容量元件可降低等效 ESR 并提升纹波承载能力。对于对可靠性极为苛刻的工业/汽车应用,建议选用符合更高温度等级与寿命规范的铝电解或固态/钽电容替代。
总结:EEEFP1V221AP 以紧凑的 SMD 封装、良好的 100kHz 纹波能力与适用的电容量,适合中等功率电源滤波与一般电子设备,但在高温、高可靠场景应注意寿命对策与散热设计。
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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.
A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.
The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.
Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.
Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.
When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.
Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.
The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.
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