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.
一、概述
SMA4757A是一款高性能的稳压二极管,由晶导微电子公司生产。该产品专用于电压稳定应用,能够有效地保护电子电路免受瞬时电压波动的影响,确保电路的正常运行。其稳压特性使其成为各种电源管理及信号调理应用中的理想选择。
二、主要参数
三、产品特点
高稳压性能: SMA4757A稳压电压为51V,可以在48.6V至54V的反向电压范围内稳定工作。这使得它在高电压应用中具有出色的性能,能够有效控制和限制输出电压,减少对下游电路的影响。
低漏电流: 在38V的工作状态下,其漏电流仅为1μA,这一特性在设计低功耗电路时尤为重要。低漏电流可以减少功率损耗,延长电池寿命,提升系统的能效。
宽广的工作温度范围: 该稳压二极管能够在-55°C至+150°C的环境温度下稳定工作,适用于各种苛刻的工业和汽车应用。这种温度适应性保证了其在极端工作环境下的可靠性。
SMA封装: SMA封装设计紧凑,有助于减少电路板的空间占用,同时方便安装和散热,符合现代电子产品对于空间和性能的双重要求。
四、应用场景
SMA4757A稳压二极管适用于多个领域,包括但不限于:
五、总结
SMA4757A是一款值得信赖的稳压二极管,凭借其优异的电压稳定特性、极低的漏电流和宽广的工作温度范围,成为了众多电源管理、电压钳位和信号调理应用中的优选器件。晶导微电子以其高精度和高可靠性而得到行业内广泛认可,该产品的推出将进一步丰富稳压二极管市场,为客户在设计和选型提供更多的选择。
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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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