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.
MVR1210-470G 是东沃(DOWO)推出的一款插件式压敏电阻,专为直流/交流低电压系统的浪涌抑制设计。其显著特性包括:压敏电压(Vb)47V、钳位电压(Vc)77V(峰值浪涌时)、工作电压 DC 36V / AC 28V、峰值浪涌电流 250A、吸收能量 1.5J,以及较高的静态电容 850pF(@1MHz)。封装为 1210,便于 PCB 布局与安装。
适用于48V类通信电源、工业控制电源输入端、消费类电源模块以及其他直流供电线路的浪涌/瞬态过压保护。由于静态电容较高,不推荐用于高速数据线或对阻抗敏感的信号线上;更适合电源轨、继电器线圈保护或浪涌较集中的电源入口处。
在选用时需确认系统最大工作电压、可能出现的浪涌幅值与能量,并留有安全余量。若系统对钳位电压或残压敏感,可考虑更低钳位或更高能量等级的型号。MVR1210-470G 适合作为中低能量浪涌防护的经济型解决方案,但不宜替代高能量或电源隔离级的保护元件。
如需进一步的曲线图(放电曲线、能量-循环特性)、封装尺寸或样品测试建议,可提供具体应用拓扑以便给出更精确的选型与布板建议。
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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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