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.
ROHM ESR03EZPF1502是罗姆半导体推出的通用型厚膜贴片电阻,属于其ESR系列常规精度型号。该产品以0603(英制封装,对应公制1608)为载体,主打“小体积、低成本、宽温区稳定”特性,适配消费电子、工业控制、通信设备等多领域小功率电路,是替代插件电阻、提升电路集成度的理想选择。
核心参数围绕“阻值精度、功率容量、温度稳定性”设计,具体如下:
标称阻值15kΩ,精度±1%,满足大多数模拟电路需求——例如5V电源分压3.3V时,误差仅约33mV,无需校准即可稳定工作;工业传感器信号调理中,可确保弱信号放大的增益一致性。
额定功率250mW,0603封装下的主流功率等级。最大允许电流约4.08mA(I=√(P/R)),适配小电流电路(如5V限流、12V分压),避免过载导致阻值漂移。
温度系数±100ppm/℃,即温度每变1℃,阻值变化1.5Ω;结合**-55℃+155℃**宽温区,全温区阻值最大变化315Ω(相对变化2.1%),覆盖工业级(-40125℃)及极端户外场景。
厚膜工艺赋予其较好抗浪涌能力(优于薄膜电阻),绝缘电阻>1GΩ,避免漏电流干扰电路。
尺寸1.6mm×0.8mm×0.5mm,体积小、重量轻,可大幅提升电路板集成度,适配高密度SMT自动化生产线。
该产品适配多领域,核心场景包括:
该产品平衡成本与性能,是中小功率电路厚膜电阻的主流选型,可满足多场景稳定工作需求。
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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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