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BZT52B24是扬杰科技(YANGJIE)推出的小功率表面贴装稳压二极管,属于BZT52系列稳压管。型号中“B24”明确其标称稳压值为24V,封装采用SOD-123超小型表面贴装,适配高密度PCB设计需求。该器件定位为「轻负载稳压+过压保护」双功能器件,兼顾低功耗、宽温可靠性与基础稳压性能,广泛应用于工业控制、汽车电子、通信设备等领域。
BZT52B24的参数设计围绕「稳压精度、低功耗、宽温适配」三大核心,具体解读如下:
BZT52B24采用SOD-123封装,具有以下实用优势:
BZT52B24的参数特性决定了其适用于轻负载稳压、过压保护、基准电压三类核心场景:
在单片机AD采集、模拟电路中作为24V基准(如部分工业AD芯片参考输入范围0~24V),配合运放实现精准电压采集;例如PLC模拟量输入模块的基准源,保证采集精度。
防止信号过冲损坏后端器件:
并联于电源输出端,作为辅助过压保护:
为保证器件可靠工作,需注意以下要点:
最大负载电流不得超过21mA,超限时需串联限流电阻(不建议并联多个器件)。
必须串联限流电阻R,公式为:
R=(Vin - Vzt)/Iz
其中:Vin为输入电压,Vzt=24V,Iz建议选10~15mA(兼顾稳定性与功率)。
举例:Vin=30V,Iz=10mA → R=(30-24)/0.01=600Ω,电阻功率选1/8W以上(600Ω×(10mA)²=60mW)。
硅稳压管温度漂移约0.08mV/℃,24V器件漂移≈1.92mV/℃;高精度场景(如±0.1%)需配合运放+热敏电阻补偿。
BZT52B24是一款高性价比宽温稳压管,以「小尺寸适配高密度设计+低功耗+宽温可靠性」为核心优势,满足多数轻负载稳压与过压保护需求,是工业控制、汽车电子等领域的常用器件。
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