Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
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Technical data
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
华新科(Walsin)1210B474K251CT是一款表面贴装多层陶瓷电容器(SMD/SMT MLCC),专为中高压、宽温环境下的电子电路设计,具备容值稳定、体积紧凑、可靠性高的特点,广泛应用于电源、工业控制、通信等领域。
该型号属于华新科通用型MLCC产品线,采用1210英制贴片封装(对应公制尺寸3225,即长3.2mm×宽2.5mm),适配自动化贴装工艺,可有效节省PCB布局空间,适合高密度电路设计。作为多层陶瓷结构电容,其通过叠层陶瓷介质与内电极实现高容值集成,避免了电解电容的体积劣势与铝电解的寿命问题。
容值标称470nF(0.47μF),采用三位数字标识法(474):前两位为有效数字“47”,第三位为10的幂次“4”(即47×10⁴pF=470nF);精度等级为**±10%(K档)**,满足大多数通用电路对容值偏差的需求,无需额外高精度校准。
额定电压为250V直流(DC),是该型号的核心耐压指标。实际应用中建议降额使用(通常保持工作电压不超过额定值的70%-80%),以提升长期可靠性,避免电压击穿风险。若涉及交流电路,需确认交流有效值不超过对应直流额定值的70%(约175V)。
温度系数遵循EIA X7R标准:
1210封装的关键尺寸(参考华新科 datasheet):
该型号凭借平衡的容值、耐压与温度特性,成为中高压通用电路的高性价比选择,华新科的稳定产能也保障了供应链可靠性。
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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.
Buyer sourcing scenarios
Typical RFQ scenarios based on the WMSIC form fields, catalog data, manual review steps, and shipment preparation workflow.
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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