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.
EL817M(B)-F 是台湾亿光(EVERLIGHT)出品的一款单通道光电三极管输出光耦,采用 DIP-4 插件封装,面向需要电气隔离与信号传输的工业与消费类电路。器件以发光二极管驱动光电三极管,实现低电压侧与高电压侧之间的可靠隔离,典型用于逻辑电平隔离、开关信号传输与微弱信号放大。
EL817M(B)-F 的高 CTR(130%–260%)使其在低 LED 驱动电流下即可获得较大的输出电流,适合对增益要求较高的信号隔离场合。VCE(sat) 低(约 100 mV)意味着在饱和导通时压降小,有利于提高电源利用效率和减小功耗。开关速度为数十微秒级,适用于中低速信号隔离,但不适合高速数字通信或精细脉冲传输。
器件采用标准 DIP-4 封装,利于通孔焊接与实际装配。单通道布局简洁,适合在 PCB 上成排放置以实现多路隔离。封装在机械强度与散热上适合一般工业环境。
品牌:EVERLIGHT(台湾亿光);型号:EL817M(B)-F;封装:DIP-4;隔离电压:5 kVrms;输出电流:50 mA;Vf 约 1.2 V;Vr 6 V;VCE(sat) 约 100 mV(IF=20 mA、IC=1 mA);CTR:130%–260%;tr/tf:18 μs;工作温度:-55 ℃ ~ +110 ℃。
如需电路示例、典型应用图或进一步的封装尺寸与管脚定义,可参考厂家数据手册或提供具体应用场景以便给出更详细的设计建议。
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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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