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Nexperia BZX585-C4V3,135 BZX585
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- Nexperia BZX585-C4V3, 135
- Type
- NEXPERIA
- Unit
- Electronic Component
- Minimum package
- 10000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- NEXPERIA
- Electronic Component
- BZX585-C4V3,135
- Electronic Component
- 1
- Package
- SOD-523(SC-79)
- Electronic Component
- Zener Diode
- Electronic Component
- ±5%
- Electronic Component
- 0.022g
- Electronic Component
- 1
- (Zzt)
- 90Ω
- Electronic Component
- BM0227550816
- Diode
- 1
- Current(Ir)
- 3uA@1V
- Power Dissipation(Pd)
- 300mW
- Electronic Component
- 4.09V~4.52V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
BZX585-C4V3,135 产品概述
一、产品简介
BZX585‑C4V3,135 是 Nexperia（安世）推出的一款低功耗小型稳压二极管，标称稳压值为 4.3V，采用 SOD‑523（SC‑79）表贴封装。该器件针对板上基准源与简单稳压/保护场合设计，体积小、成本低，适合空间受限和便携式电子产品。
二、主要性能与参数
- 稳压值（标称）：4.3V。
- 反向电流 Ir：3 μA（在 1V 条件下测得的反向漏电流）。
- 耗散功率 Pd：300 mW，表示在适当散热条件下允许的最大耗散功率。
- 阻抗 Zzt：90 Ω（动态阻抗，表征在测试电流下电压随电流变化的灵敏度）。
这些参数提示该型号适合低功耗稳压或参考用途，但由于较高的动态阻抗，不适合对电压精度要求很高的场合。
三、典型应用场景
- 简单的基准电压源与偏置网络；
- 低功耗便携设备与传感器节点的局部稳压；
- 输入过压或反向保护的辅助件；
- 信号调理中作为电平限制器使用。
在需要更严格电压稳定性或更大功率时，应选用低阻抗或高功率的替代品。
四、使用建议与注意事项
- 工作电流与限流电阻的选择应确保在最恶劣环境下二极管的耗散功率不超过 300 mW，留有安全裕量；
- 动态阻抗较大，负载变化时会引起显著的电压偏移，应尽量在稳定、受控的偏流条件下使用；
- 布局上应尽量将器件放置靠近被稳压节点，缩短走线并保证良好散热路径；SOD‑523 封装散热有限，需考虑 PCB 铜箔面积以辅助散热；
- 对温漂敏感的设计应进行温度测试，稳压值会随温度与工作电流变化。
五、可靠性与封装特性
SOD‑523（SC‑79）为超小型表面贴装封装，适配现代自动化贴装工艺，兼容常规回流焊温度曲线。器件在潮湿敏感度与焊接热稳健性方面符合通用 SMT 要求，但在装配与维修过程中需注意机械应力及静电防护。
六、选型建议
若设计追求板上简单、低成本的 4.3V 稳压功能且功耗受限，BZX585‑C4V3,135 是合适选择。若需要更低的动态阻抗、更高的精度或更大耗散能力，应考虑功率更高或精度更好的稳压二极管或专用参考源。
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