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.
0437002.WR是由美国力特(Littelfuse)制造的一款高性能贴片式快速熔断保险丝。该产品设计用于提供优越的过流保护,广泛应用于各类电子设备和电路中,旨在保护敏感组件免受过电流损坏。
快速熔断特性: 此款保险丝采用快速熔断设计,在过载或短路情况发生时,能够迅速切断电流,有效保护电路及其连接的组件。其熔断 I²t值为0.225,表明在一定的热负荷情况下产品能够在快速响应的同时提供良好的安全性。
优良的电气参数: 该保险丝的标称电压降为200mV,及其额定电流2A,使其适用于需要低电压降和适度电流限制的应用场景。标称冷电阻仅为58mΩ,进一步提升了能效,减小了功耗。
高分断能力: 50A的分断能力使得0437002.WR在遇到过流情况时,能够安全快速切断电流流动,保障电路的安全性和可靠性。
宽泛的工作温度范围: 本产品的工作温度范围从-55°C到150°C,使其能够在严酷环境下稳定工作。这一特性特别适合于汽车、工业设备及消费电子产品等各类领域的使用。
紧凑的封装设计: 采用1206封装尺寸,0437002.WR适应性强,能够便捷地集成到多种电路板设计中,满足现代电子设备对小型化的需求。
优越的热稳定性: 该产品的设计考虑了热管理,在高温环境下依然能够正常工作,保障长时间稳定性。
由于其卓越的性能参数和优良的可靠性,0437002.WR贴片式保险丝广泛应用于下列场景:
在使用0437002.WR保险丝时,建议遵循以下安全指引:
0437002.WR是Littelfuse公司推出的一款值得信赖的贴片式快速熔断保险丝,通过其出色的电气性能和卓越的热稳定性,成为众多电子、汽车及工业应用中不可或缺的保护器件。其紧凑的设计、强大的分断能力以及广泛的工作温度范围,将为各种设备提供有效的过流保护,为电子产品的安全与稳定运行提供坚实的保障。
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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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