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Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
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BZX584C9V1 为独立式小功率稳压二极管,标称稳压值 9.1V,稳压范围 8.5V~9.6V。代表性电气参数包括:反向漏电流 Ir = 200 nA(@7V),动态阻抗 Zzt = 15 Ω,最大耗散功率 Pd = 200 mW。该器件适用于作为低功耗电压基准、波形钳位与基准偏置等场合,具有体积小、漏电低的优点。
封装为 SOD-523,属于超小型贴片封装,利于高密度 PCB 设计与空间受限的便携设备。但需注意:SOD-523 受限于热阻,额定耗散功率 200 mW 为在特定温度与 PCB 散热条件下的极限值。实际设计中应进行功率降额处理,通过增加焊盘铜箔面积或热过孔改善散热,避免长时间接近额定 Pd。
典型稳压电路为输入串联限流电阻 R 与并联 BZX584C9V1。举例:若 Vin = 12 V,目标在无负载时使稳压二极管工作在 Iz = 5 mA,则 R = (12 − 9.1) / 5 mA ≈ 580 Ω(可选标准值 560 Ω);当负载接入时需同时考虑负载电流与最小 Iz 以保证稳压。电阻额定功耗应按 (Vin − Vz)^2 / R 计算并留裕量。
结束语:BZX584C9V1(YANGJIE)以其小型 SOD-523 封装、低漏电与适中的稳压特性,适合对尺寸与功耗敏感的低功率应用。在实际设计中,应结合 PCB 散热能力与所需稳压精度合理选型与功率降额,以确保长期可靠工作。若需更详细的温度系数、典型 Iz 下的稳压曲线与封装尺寸,请参考厂商完整数据手册。
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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.
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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.
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The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.
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The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.
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