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.
Littelfuse(美国力特)0438003.WRA是一款专为汽车电子及高密度工业/消费电子设计的快断型陶瓷贴片保险丝,兼具小体积、高可靠性与宽环境适应性,是敏感电路过流保护的优选器件。
该产品隶属于Littelfuse汽车级保险丝产品线,型号后缀“.WRA”表明采用编带包装(Tape & Reel),便于自动化贴装生产。作为全球电路保护领域的领导品牌,Littelfuse的产品以严苛的可靠性测试与行业标准合规性著称,0438003.WRA延续了这一优势,尤其针对汽车电子的恶劣工况进行了针对性优化。
0438003.WRA的核心电气指标精准匹配汽车及小型电子设备的电源保护需求:
该保险丝采用0603封装(公制1608),是贴片器件中的小尺寸规格,具体物理尺寸为1.58mm(长)×0.85mm(宽)×0.5mm(高),可直接贴装于高密度PCB板,适配紧凑空间设计(如车载仪表盘、ADAS传感器模块)。
封装材质为陶瓷,相比塑料封装具有明显优势:
焊盘设计符合SMD标准,兼容常规回流焊工艺,贴装良率可达99%以上。
0438003.WRA通过多项权威认证,确保全球市场应用合规与可靠性:
凭借小体积、宽温、汽车级可靠性,0438003.WRA广泛应用于以下领域:
该产品是汽车电子及高密度电子设备中,小电流过流保护的高性价比选择,兼具可靠性与易用性。
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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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