Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
Available for RFQ
Technical data
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
MMSZ5254B_R1_00301 为 PANJIT(强茂)出品的独立式稳压(齐纳)二极管,采用 SOD-123 小型外形封装,标称稳压值 27V。器件针对中低功率稳压、基准源及过压钳位场景设计,具有体积小、漏电低与温度范围宽的特点,适合集成电路外围保护及小型电源模块中作简单稳压元件。
Zzt(41Ω)表征在规定测试电流下的小信号动态阻抗,数值较低时稳压性能更佳;Zzk(600Ω)反映在低电流区靠近膝部的阻抗特性,数值较高表示在非常小的偏置电流时稳压起始相对陡峭。Ir 非常小,利于高阻抗电路的偏置与参考应用。500mW 的耗散能力适合小电流稳压与钳位,非用于大功率稳压。
SOD-123 小型封装利于高密度贴装与自动化生产,订购时请确认完整料号(MMSZ5254B_R1_00301)、出厂检验与包装形式,以便于生产匹配。选型时若需更严格稳压精度或更高功率,应考虑其他系列或通过并联、散热改进等方案提升能力。
如需基于该器件的电路例子(限流电阻计算、稳压性能曲线或 PCB 布局建议),可提供工作电压与负载条件,我将给出针对性的设计建议。
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Use the form for single models, category sourcing, and multi-line BOM requirements.
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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