Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
Available for RFQ
Technical data
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
ROHM ESR03EZPF1203是一款0603封装厚膜贴片电阻,属于罗姆(ROHM)常规精密电阻系列,核心参数与型号命名高度对应:
该电阻采用厚膜丝网印刷工艺,结合罗姆优化的陶瓷基片与浆料配方,实现了性能与成本的平衡:
±1%的精度满足一般精密电路需求(如分压、信号调理),结合±100ppm/℃的温度系数,在-55℃~+155℃范围内,阻值最大漂移约±2.1%(远低于精度上限),适合温度变化较大的场景;
额定功率250mW,需注意功率-电压双限制:
0603封装的寄生电感(约1nH)与寄生电容(约0.1pF)较低,可支持100MHz以下的信号电路(如射频滤波、中频放大),但高频性能弱于薄膜电阻,需根据场景选型。
罗姆通过工艺优化与可靠性测试,确保该电阻适配多场景应用:
该电阻凭借平衡的性能与可靠性,成为消费电子、工业控制等领域的常规选型,符合罗姆“高性能+高性价比”的产品定位。
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Use the form for single models, category sourcing, and multi-line BOM requirements.
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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