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
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BZT52C27S 为扬杰(YANGJIE)系列小功率稳压二极管,标称稳压值 27V,稳压值公差范围 25.1V ~ 28.9V,反向漏电流 Ir 为 100nA(在 18.9V 条件下测得),耗散功率 Pd 为 200mW。器件动态阻抗在不同工作点表现为 Zzt ≈ 80Ω(稳态条件)与 Zzk ≈ 300Ω(低电流区),工作结温范围宽,-55℃ ~ +150℃,封装采用 SOD-323 小外形,适合体积受限的便携或板级保护应用。
SOD-323 为小型贴片封装,适合自动贴片与回流焊。焊接时按厂商推荐回流曲线控制峰值温度,避免过热;焊盘设计要兼顾电气性能与散热需求。储存与使用应避免潮湿与静电损伤,安装时注意方向性(阴极/阳极标识)。
在典型钳位电路中,稳压二极管并联在被保护节点与地之间,前置串联限流电阻并在近端放置旁路电容以滤除高频尖峰。布线应尽量短且粗,接地良好以保证稳压稳定与散热效率。
总结:BZT52C27S 以其 27V 稳压值、低漏电与小型 SOD-323 封装,适用于板级稳压、钳位与小电流参考场景。选型时应重视功率余量与热管理,以确保长期稳定可靠运行。
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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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