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.
SMNR4020-22UH是顺翔诺(SXN)推出的一款表面贴装(SMD)磁胶屏蔽功率电感,聚焦中小功率电源管理、消费电子及小型工业控制场景。其核心设计围绕「小封装、低EMI、电流与功耗平衡」展开:采用磁胶屏蔽替代传统金属罩,既压缩体积又抑制电磁干扰;通过线径与匝数优化,实现额定电流与直流电阻的合理匹配,适配高密度PCB布局需求。
标称电感值22μH,精度±20%,符合中小功率DC-DC降压电路的常规选型范围(10-47μH)。±20%的实用级精度,可满足批量生产的一致性要求,无需因电感差异频繁调整电路参数。
455mΩ,属于同封装(4×4×2mm)电感中的中等偏优水平。DCR直接影响功耗(P=I²R):以1A连续电流为例,功耗约0.455W,发热可控,适合小空间无额外散热的场景。
采用4×4×2mm SMD封装,无引脚设计适配自动贴装(SMT)生产线,贴装效率高。磁胶屏蔽结构相比传统金属罩,体积减少约15%,且能有效降低高频电磁辐射,适合靠近射频模块、传感器等敏感电路的布局。
焊盘设计符合IPC-A-610标准,兼容常规回流焊温度曲线(峰值245℃±5℃),降低贴装偏移、空焊等不良率。
顺翔诺(SXN)作为国内电感专业厂商,SMNR4020-22UH经过多项可靠性测试:
磁胶屏蔽采用进口材料,电感值一致性控制在±10%以内(优于标称±20%),批量生产调试效率更高。
该电感凭借小体积、低EMI、稳定电流特性,成为中小功率电路的实用选型,适配多场景量产需求。
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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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