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.
松下ERJPA3F3300V属于耐电涌厚膜贴片电阻系列,核心参数针对性强,可直接匹配多数小型化电路需求:
参数间相互约束:实际工作需同时满足「功率≤250mW」和「电压≤150V」,例如最大持续电流约27.6mA(I=√(P/R)),而150V电压余量可应对瞬间高压冲击。
突出的耐电涌能力
厚膜电阻膜采用特殊烧结工艺,相比普通厚膜电阻,可承受5倍额定功率10秒浪涌(典型值),适合电源输入端、雷击防护辅助电路等浪涌风险场景,减少失效概率。
稳定的温度特性
±100ppm/℃的TCR意味着:温度变化100℃时,阻值漂移仅0.01×330=3.3Ω,与±1%精度叠加后总误差≤±2%,满足温度敏感电路(如传感器信号调理)的稳定性要求。
高功率密度设计
0603封装实现250mW额定功率,比同封装普通电阻(通常100~150mW)功率密度提升67%,解决小型化设备“小体积+功率需求”的矛盾。
宽电压适应范围
150V最大工作电压远高于同封装普通电阻(≤100V),适合高压小电流场景(如电池管理系统的电压检测电路)。
0603封装适配自动化SMT贴装,体积小巧适合高密度电路,典型应用包括:
这些场景均对电阻的体积、耐浪涌、温度稳定性有明确要求,ERJPA3F3300V的参数特性与之高度匹配。
极端温度耐受
-55℃~+155℃的工作范围,通过IEC 60068-2-1(低温)、IEC 60068-2-2(高温)测试,满足航空航天、汽车等领域的极端环境需求。
抗老化与抗振动
陶瓷基片+金属氧化物电阻膜结构,长期使用阻值漂移≤0.5%(1000小时老化测试);贴片封装与PCB焊接牢固,抗振动能力符合MIL-STD-202标准,适合车载、工业振动场景。
环保合规
符合RoHS 2.0、REACH标准,无铅无卤,满足绿色制造要求。
松下作为全球厚膜电阻龙头厂商,ERJPA系列具备以下优势:
松下ERJPA3F3300V耐电涌厚膜贴片电阻器,以0603封装实现高功率密度、宽温度范围及突出的耐浪涌能力,是消费电子、工业控制、汽车电子等领域小型化电路的高可靠性优选方案。
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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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