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Nexperia BZX84-A2V4,215 BZX84
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- Nexperia BZX84-A2V4, 215
- Type
- SOT-23(TO-236AB)
- Unit
- Electronic Component
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- NEXPERIA
- Electronic Component
- BZX84-A2V4,215
- Electronic Component
- 1
- Package
- SOT-23(TO-236AB)
- Electronic Component
- Zener Diode
- Electronic Component
- ±1%
- Electronic Component
- 0.024g
- Electronic Component
- 1
- (Zzt)
- 70Ω
- Electronic Component
- BM0227552040
- Diode
- 1
- Current(Ir)
- 50uA@1V
- Power Dissipation(Pd)
- 250mW
- Electronic Component
- 2.37V~2.43V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
BZX84-A2V4,215 稳压二极管产品概述
一、产品基本信息
BZX84-A2V4,215是Nexperia（安世半导体） 推出的独立式稳压二极管，属于其经典小信号稳压管系列BZX84-A。该器件针对低电压稳压场景优化，标称稳压值2.4V，采用SOT-23（TO-236AB）小型表面贴装封装，编带包装标识为215，适用于对体积、功耗有严格要求的电子电路。
二、核心电气参数深度解析
1. 稳压值精度
标称稳压值2.4V，实际稳压范围2.37V~2.43V（偏差±1.25%），属于较高精度范畴，可直接作为多数电路的参考电压，无需额外精密稳压辅助。
2. 反向漏电流
反向电压1V时，漏电流仅50μA，低漏电流特性大幅降低反向偏置功耗，适合电池供电的便携式设备，延长续航时间。
3. 耗散功率与电流限制
最大耗散功率250mW，结合稳压值计算，最大允许稳压电流≈104mA（公式：(I_{zmax} = P_d / V_z)）。设计时需通过限流电阻控制负载电流，避免过热损坏。
4. 动态阻抗
稳压状态下动态阻抗70Ω，反映稳压值随电流波动的稳定性：阻抗越低，负载变化对稳压精度影响越小，可满足一般电路的稳压需求。
三、封装与机械特性
采用SOT-23（TO-236AB）封装，尺寸约1.6mm×0.8mm×0.9mm（长×宽×高），3脚设计（典型引脚定义：1脚阴极、2脚空脚、3脚阳极），具备以下优势：
- 体积小巧：适配高密度PCB布局，缩小产品尺寸；
- 焊接兼容：支持回流焊、波峰焊等标准工艺，生产效率高；
- 可靠性：耐高温塑料封装，可承受多次焊接温度循环，长期稳定性好。
四、典型应用场景
1. 低电压参考源
作为MCU、FPGA、传感器的基准电压，提供稳定2.4V参考，确保电路参数准确（如工业传感器信号调理电路）。
2. 便携式设备
手机、蓝牙耳机、智能手环等小型设备中，用于电源稳压或电压钳位，避免电池波动影响敏感电路。
3. 通信模块
射频前端、蓝牙模块等通信电路中，低漏电流减少对射频信号的干扰，保障传输质量。
4. 过压保护
输入电压超稳压值时反向击穿，钳位电压至2.4V左右，保护后级电路（如电源输入端口防护）。
五、选型与使用注意事项
1. 功率裕量设计
实际功耗需低于250mW，例如输入5V时，限流电阻(R=(5V-2.4V)/I_z)（(I_z<104mA)）。
2. 温度影响
稳压值随温度变化（温度系数≈+2mV/℃），若场景温度波动大，需考虑温度补偿。
3. 替换参考
同系列BZX84-A2V4的不同包装编号（如237、133）可直接替换；替代其他品牌需匹配稳压范围、漏电流、阻抗等参数。
该器件以高性价比、小体积、低功耗等特点，广泛应用于消费电子、工业控制、通信等领域，是低电压稳压场景的常规选型。
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