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Slkor ZM4733A
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Slkor ZM4733A
- Type
- SLKOR
- Minimum package
- 5000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- SLKOR
- Electronic Component
- ZM4733A
- Electronic Component
- 1
- Package
- LL-41
- Electronic Component
- Zener Diode
- Electronic Component
- ±5%
- Electronic Component
- 0.17g
- Electronic Component
- 1
- (Zzk)
- 550Ω
- (Zzt)
- 7Ω
- Electronic Component
- BM0227676385
- Diode
- 1
- Current(Ir)
- 10uA@1V
- Power Dissipation(Pd)
- 1W
- Electronic Component
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
ZM4733A 稳压二极管（5.1V，1W，LL-41）产品概述
一、简介与定位
ZM4733A 是 Slkor（萨科微）推出的一款小功率稳压二极管，标称稳压值为 5.1V，最大耗散功率 1W，封装为 LL-41。适用于中低功率精度要求一般的稳压与过压保护场合，可作为并联稳压元件或钳位器使用，常见于电源管理、接口保护和参考电压源等电路。
二、主要电气参数
- 稳压值（标称）：5.1V
- 精度：±5%（标称公差）
- 反向电流 Ir：10 μA @ 1V
- 阻抗（Zzk）：550 Ω（低电流区特性阻抗）
- 阻抗（Zzt）：7 Ω（测试工作点下动态阻抗）
- 耗散功率 Pd：1W
- 品牌/封装：Slkor（萨科微），LL-41
三、核心特性与优势
- 5.1V 标称电压适合常见数字电路与小功率模拟电路的参考与保护需求。
- ±5% 精度满足一般稳压与保护应用，不用于高精度基准场合。
- 在测试电流点具有较低的动态阻抗（约 7 Ω），可提供相对稳定的稳压性能；在极低电流区阻抗较高（约 550 Ω），提示在微安级条件下稳压能力受限。
- 1W 功率等级适合 PCB 上并联稳压或吸收短时能量的钳位使用，体积小、成本低。
四、典型应用
- 作为并联稳压元件，为小功率供电总线提供简单稳压（配合限流电阻）。
- 过压钳位与浪涌保护，保护后续敏感器件或接口。
- 信号线夹位、参考电压及去耦保护电路。
- 消费电子、家电控制板、通信终端等中低功率场景。
五、封装与热管理
LL-41 封装便于贴装，但 1W 为器件在特定环境与散热条件下的最大耗散。使用时应考虑：
- 在 PCB 上配置足够散热铜箔或热垫，降低结温。
- 在高环境温下按照额定温度曲线进行功率降额（derating），避免连续满功率工作。
- 短时浪涌吸收可以超过平均功率，但需按脉冲能量与热时间常数评估。
六、使用注意事项与建议
- 在设计并联稳压时，通过系列限流电阻选择合适的工作电流，使二极管工作在低动态阻抗区以获得更稳定的电压。
- 对于微安级偏置电流场合，注意 Zzk 较高导致稳压性能下降，应考虑改用更适合低电流工作的型号。
- 焊接时遵循封装的温度等级与焊接规范，避免过热损伤器件参数。
七、订购与替代建议
ZM4733A（Slkor，LL-41）适合成本敏感且对稳压精度要求不高的设计。若需要更低动态阻抗或更高精度，可选用同类 5.1V 串联或更高功率的稳压管或专用低功耗参考源。订购时注意查看生产批次的参数一致性与温度特性曲线。
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