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.
ERJPA2J220X是松下(PANASONIC)推出的0402封装厚膜贴片电阻,属于工业级通用电阻系列,核心参数针对高密度电路设计优化:
厚膜工艺的稳定性
采用松下专利厚膜印刷技术,电阻膜层均匀性达±0.5%,避免薄膜电阻易受机械应力导致的阻值漂移问题,批量一致性优于行业标准20%。
宽温下的阻值可靠性
温度系数±200ppm/℃,在-55℃~+155℃全温区,阻值最大变化量仅0.924Ω(22Ω×200e-6×210℃),远低于±5%精度要求,满足极端环境下的电路稳定需求。
小封装高功率密度
0402封装下实现200mW额定功率,功率密度达40W/m²(行业同类产品平均32W/m²),适配智能手机、智能穿戴等便携式设备的高密度PCB设计。
电压与焊接兼容性
最大工作电压50V,满足中等电压电路(如电源滤波、信号分压)需求;兼容无铅回流焊、波峰焊工艺,焊接后阻值偏移率≤0.2%,符合RoHS环保标准。
ERJPA2J220X的特性使其广泛适用于以下领域:
环境测试验证
通过松下严格的可靠性测试:
长期使用稳定性
在额定功率下连续工作1000小时,阻值变化≤0.5%,满足消费电子、工业设备的长期可靠性要求。
ERJPA2J220X凭借松下的工艺优势、稳定的宽温性能和小封装高功率密度特性,成为高密度电子电路设计的可靠选择,覆盖消费电子、工业控制等多领域,满足量产与长期使用需求。
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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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