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.
BOURNS作为全球被动元件领域的知名厂商,其SRN系列贴片功率电感以高可靠性、小体积和宽适配性为核心优势。SRN6045-470M是该系列中针对中等功率密度场景优化的产品,以下从基本信息、核心参数、封装特性、应用场景及选型注意事项展开详细概述。
SRN6045-470M属于BOURNS SRN6045系列贴片功率电感,型号命名遵循行业通用规则:
该产品采用表面贴装(SMD)封装,无需额外引线,适配自动化SMT贴装生产线,可有效节省PCB布局空间,特别适合对体积敏感的电子设备设计。
产品的电气参数直接决定其适用场景,以下对关键参数进行实际意义解读:
电感量为47μH,精度±20%(实际电感量范围为37.6μH~56.4μH)。电感量是功率电感的核心储能参数,直接影响DC-DC转换器的输出纹波和稳压稳定性。±20%的精度满足绝大多数功率电路的设计需求,无需额外高精度校准,降低了系统整体成本。
直流电阻为257mΩ(典型值),是电感绕组的固有电阻。DCR直接影响功率损耗(损耗功率P=I²×DCR),低DCR设计有助于提升电路效率,减少发热,尤其适用于对能效要求较高的便携式设备。
SRN6045-470M采用6.0mm×6.0mm×4.5mm(长×宽×高)的贴片封装,具有以下物理特性:
结合产品的电流、电感量及体积特性,SRN6045-470M适用于以下主流场景:
如智能手机、平板电脑、智能手表的DC-DC降压转换器(CPU核心供电、电池充电电路),满足小体积、中等电流(≤1A)的需求,同时低DCR有助于提升电池续航。
传感器节点、智能家居设备(智能灯泡、温控器)的辅助电源模块,其宽温度范围(-40℃~+125℃,BOURNS典型规格)可适应室内外环境变化。
车载小功率电源(中控屏辅助供电、胎压监测传感器供电),高可靠性设计可满足车载环境的振动、温度波动要求。
小型PLC、微型电机驱动的辅助电源,稳定的电感性能可支撑工业设备的长期连续运行。
综上,BOURNS SRN6045-470M是一款性能均衡、小体积的贴片功率电感,兼顾可靠性与成本优势,适用于中等功率密度的便携式设备、IoT终端及汽车电子等场景,可满足多数功率电路的设计需求。
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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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