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VKMD1451H221MV是永铭(Ymin)推出的一款工业级贴片铝电解电容,专为中高压、高频纹波抑制场景设计,凭借宽温适应性、长寿命和紧凑型封装,成为工控、车载、通信等领域的常用选型。
该型号属于SMD(表面贴装)封装铝电解电容,核心定位工业级,符合电容行业通用可靠性标准。型号命名中:
标称容值220uF,精度±20%,满足大多数工业电路对电容容量的偏差要求,无需额外高精度筛选,降低采购与生产环节的成本。
直流额定电压50V,可稳定承载50V以下的工作电压,避免过压击穿风险,适配24V、48V等中低压工控电源系统。
100kHz频率下可承受1.19A纹波电流——这是衡量电容高频性能的核心指标:纹波电流会导致电容发热,该参数意味着在开关电源等高频场景中,能有效抑制温度上升,减少因热老化导致的性能衰减。
明确标注100kHz下的纹波电流,说明产品针对高频场景优化,避免了普通低频电容在高频下性能骤降的问题,适配DC-DC转换器、高频开关电源等应用。
-55℃至+105℃,覆盖工业级与部分车载级温度需求:
10000小时@105℃,这是行业通用的寿命测试标准(105℃下连续工作时长)。换算成常温(25℃)下,寿命可达数万小时,满足7×24小时运行的设备需求(如基站电源、工业PLC),降低设备维护成本。
结合产品参数,VKMD1451H221MV的主要应用场景包括:
若需适配更高电压(如63V)或更大纹波电流(如1.5A@100kHz),可参考永铭同系列其他型号;若对容值精度要求更高(如±10%),需提前确认对应规格的 availability。
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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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