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.
ES2DA 是 DOWO(东沃) 出品的一款高可靠性、超快恢复整流二极管,采用玻璃钝化结芯片并封装于常用的 SMA 外壳。该器件专为高效率开关电源、电动工具驱动、电池充电器及各类需要快速恢复和低反向漏电的直流整流与续流场合而设计。器件支持自动贴片装配(SMT),同时符合 RoHS 无卤环保要求,适合工业级到消费类电子的广泛应用。
这些参数使 ES2DA 在高频开关环境中既能承受较高的电压应力,又保持较低的开关损耗与较小的反向漏电。
在这些场合中,ES2DA 的超快恢复与低损耗特性能有效提升系统总体效率并减小散热设计压力。
在布板时建议预留适当的焊盘尺寸与散热铜箔,以确保在 2 A 连续工作时热量能够有效传导并散出,延长结温寿命。
型号:ES2DA(SMA 封装)
选型时请关注工作电压余量(建议实际使用电压远低于 Vr,以提高可靠性)、连续电流与散热条件(If=2 A 连续),以及开关频率对反向恢复时间(Trr)引发的开关损耗影响。对于更高电流或更低 Vf 的需求,可咨询同系列或其它封装产品以匹配系统要求。
ES2DA 符合 RoHS 无卤环保标准,采用经过可靠性验证的玻璃钝化工艺与应力消除结构,适配自动化生产线。购买时建议从授权分销或正规渠道获取,以保证产品真伪与长期可追溯的质量支持。
如需更详细的电气特性曲线(Vf-Vs-If、Ir 随温度变化、Trr 测试条件)、封装尺寸图或可靠性测试报告,我可以帮助整理并提供进一步的技术资料。
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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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