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.
ZMM5239B_R1_10001 为 PANJIT(强茂)生产的一款 9.1V 微功率稳压二极管,采用 MIN I-MELF 封装。器件为单个独立式稳压二极管,标称稳压值 9.1V,额定耗散功率 500mW,适合小型化、对精度与稳定性有一定要求的低功耗电路作电压基准或过压钳位使用。
ZMM5239B 在规定测试条件下呈现 9.1V 的稳压电压,Zzt(10 Ω)表示在测试电流下的交流阻抗,决定输出纹波抑制能力;Zzk(600 Ω)反映在膝部小电流区的电阻特性,影响低偏流时的稳压陡峭度。Ir=3 μA 表明在低反向电压下的漏电流较小,适合用作参考源或小信号钳位。
额定耗散功率为 500 mW,在实际应用中须结合封装散热和环境温度进行功耗分配与降额设计。器件允许的工作结温范围宽(-65 ℃ ~ +175 ℃),但长期工作在高结温下会影响寿命与稳压精度。建议参考厂方数据手册中的热阻和降额曲线,在印制板布局中增加铜厚或热沉路径,避免局部过热。
如需完整电气特性曲线、测试条件与焊接参数,请参考 PANJIT 官方数据手册或向供应商索取相关技术文件,以便在设计中正确评估热特性与长时间稳定性。
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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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