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.
TLP290 系列是东芝(TOSHIBA)提供的一款光电三极管输出光耦合器(phototransistor output optocoupler),适用于隔离数字与模拟信号、微控制器接口、以及电力/电气信号检测等场合。该器件兼容 AC 与 DC 输入,输出侧为光耦合的 NPN/PNP 型光电三极管(具体型号以数据手册为准),具有较高的电流传输比(CTR)范围和中等速度的开关性能,适合需要电气隔离且对输出电流有一定要求的应用。
总结:TLP290 (V4GBTP/SE(T)) 是一款面向中等功率、需电气隔离的通用光耦,特点为较大的 CTR 范围、50 mA 输出能力与 3.75 kVrms 隔离能力。适合工业控制、开关电源反馈与一般信号隔离场景。设计时应重视 CTR 的变化、输入限流、输出功耗与 PCB 隔离布局以确保长期稳定运行。
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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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