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JSMSEMI MM3Z18W
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- JSMSEMI MM3Z18W
- Type
- JSMSEMI
- Minimum package
- 3000
Technical parameters
- Electronic Component
- JSMSEMI
- Electronic Component
- MM3Z18W
- Electronic Component
- 1
- Package
- SOD-323W
- Electronic Component
- Zener Diode
- Electronic Component
- ±5%
- Electronic Component
- 0.035g
- Electronic Component
- 1
- (Zzt)
- 45Ω
- Electronic Component
- BM0257536394
- Diode
- 1
- Current(Ir)
- 100nA@13V
- Power Dissipation(Pd)
- 300mW
- Electronic Component
- 16.8V~19.1V
- Electronic Component
- 55℃~+150℃
- Electronic Component
- 3000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
MM3Z18W 产品概述
一、产品简介
MM3Z18W 是 JSMSEMI（杰盛微）推出的一款小功率稳压二极管，标称稳压值 18V，适用于表面贴装应用。该器件封装为 SOD-323W，体积小、厚度低，适合空间受限的电子设备中做稳压、基准或过压保护等功能。
二、主要电气参数
- 标称稳压：18V（厂方给出稳压范围 16.8V ~ 19.1V，生产批次可能存在微小差异）
- 精度：±5%（典型等级）
- 反向漏电流 Ir：100nA @ 13V（在较低反向电压时保持极小漏流）
- 动态阻抗 Zzt：45Ω（在规定测试条件下的稳态阻抗，影响负载变动时的稳压能力）
- 最大耗散功率 Pd：300mW（在允许结温范围内的最大耗散）
- 工作结温范围：-55℃ ~ +150℃
三、产品特性与优势
- 小封装、占板面积低：SOD-323W 适合高密度 PCB 和便携设备。
- 低漏电流：在低电压下漏电小，适合对静态功耗要求高的电路。
- 中等动态阻抗：Zzt 45Ω 对低至中等工作电流范围内的稳压表现合适，适用于作为简单基准或局部稳压源。
- 宽温度范围：-55℃~+150℃ 的工作结温范围，适应工业级环境。
四、典型应用
- 小电流基准电源和偏置源
- 电源回路的过压/稳压保护
- 仪器仪表与通信终端中对稳压精度要求不极端苛刻的场合
- 电池供电或便携式设备的局部稳压
五、使用建议与注意事项
- 功耗与散热：Pd 为 300mW，长期工作时应注意热量管理并考虑在 PCB 上增加铜箔面积或使用散热措施以降低结温；在高环境温度下应按厂家推荐进行功率降额。
- 工作电流选择：稳压性能与误差受工作电流影响显著。建议在设计时参照供应商的 Iz（测试电流）条件选择合适的工作电流范围，避免在过低或过高电流下工作导致稳压离散或功耗过大。
- 焊接工艺：采用常规回流焊工艺贴装，遵循无铅回流曲线及 ESD 防护规范，避免过热或过压冲击导致性能退化。
- 温漂与容差：实际稳压值会受温度及器件容差影响，若电路对稳压精度要求较高，应考虑后端调节或采用误差补偿设计。
六、封装与订购信息
- 品牌：JSMSEMI（杰盛微）
- 型号示例：MM3Z18W
- 封装：SOD-323W（表面贴装小型封装）
总结：MM3Z18W 为一款面向小功率、空间受限应用的 18V 稳压二极管，以其小体积、低漏电和工业级温度范围，适合做局部稳压与保护元件。在设计中应重点考虑功耗与散热、合适的工作电流以及温度及容差带来的稳压偏移。若需更详细的测试条件（如 Iz、Vz 测试电流、温度系数、热阻 θJA 等），建议参考 JSMSEMI 官方器件数据手册或直接咨询供应商以获得完整规范。
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