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ST BZX84C6V8 Zener diode BZX84C6V8
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- ST BZX84C6V8
- Type
- ST
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- ST
- Electronic Component
- BZX84C6V8
- Electronic Component
- 1
- Package
- SOT-23
- Electronic Component
- Zener Diode
- Electronic Component
- 0.028g
- Electronic Component
- 1
- (Zzt)
- 15Ω
- Electronic Component
- BM0230826381
- Diode
- 1
- Current(Ir)
- 2uA@4V
- Power Dissipation(Pd)
- 350mW
- Electronic Component
- 6.4V~7.2V
- Electronic Component
- 65℃~+150℃
- 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.
BZX84C6V8 产品概述
一、概述
BZX84C6V8 是一款独立式稳压二极管（稳压值标称 6.8V），由 ST（先科）生产，采用 SOT-23 小型封装，面向空间受限的表面贴装电路。该器件以其稳定的稳压性能、小尺寸和低成本特点，常用于电压参考、基准稳压和过压保护等场合。
二、主要参数
- 稳压值（标称）：6.8V
- 稳压值范围：6.4V ~ 7.2V
- 反向电流 Ir：2 μA @ 4V
- 耗散功率 Pd：350 mW（额定耗散，须考虑环境及 PCB 散热能力）
- 阻抗 Zzt：15 Ω（典型，按制造商测试条件）
- 工作结温范围：-65 ℃ ~ +150 ℃
- 封装：SOT-23（表面贴装）
- 配置：独立式稳压二极管
三、器件特性与优势
- 小体积，适合高密度 PCB 设计；SOT-23 便于贴片生产与自动焊接。
- 低反向电流，适合对漏电有要求的低功耗电路。
- 中等耗散能力（350 mW），在合理散热条件下可提供稳定的稳压性能。
- 宽温度工作范围，适用于工业级与高可靠性应用。
四、典型应用
- 电源和模拟电路中的基准电压源与偏置电路。
- 低功耗电子设备的局部稳压和电压基准。
- 信号接口和传感器电路的过压保护与钳位。
- 小型便携设备、家用电器和工业控制模块。
五、使用与设计注意事项
- 作为并联（分流）稳压器使用时，需在输入端串联限流电阻：R = (Vin - Vz) / Iz（Iz 为期望的稳压电流）。
- 避免长期在额定 Pd 附近工作，必要时通过铜箔增加 PCB 散热面积或使用更大的散热层。
- 在低电流条件下（接近 Ir 量级）稳压值会出现偏差，应在设计时验证实际工作点下的 Vz。
- 注意瞬态浪涌与功率冲击，若有较大浪涌需增加限流或采用瞬态抑制器件。
六、封装与工艺
SOT-23 封装适合常规回流焊工艺和贴片生产，便于自动化装配。焊接时参考 SOT-23 的温度曲线与 PCB 焊盘设计，优化散热与可靠性。
七、选型与可靠性建议
在选型时，除了稳压值与耗散功率外，应考虑实际工作电流、温度环境和 PCB 散热能力。对于要求更高功率或更低动态阻抗的场合，可选用功率等级更高或并联/替代方案。BZX84C6V8 以其尺寸与性能在众多中低功耗稳压应用中提供了成本与性能的平衡选择。
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